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- Einseitige schmerzhafte Schwellung der Leiste nach...
- Raynaud-Phänomen
- Neural Switch Asymmetry in Feature-Based Auditory ...
- Kimura’s Disease: A Diagnostic and Therapeutic Cha...
- An Immunohistochemical Study of HIF-1 Alpha in Ora...
- To Be Cautious or Not: Tension Pneumothorax After ...
- Evaluation of Quality of Life and Pattern of Impro...
- Leiomyosarcoma of Mandible: A Diagnostic Dilemma; ...
- Complications of Paediatric Cochlear Implantation ...
- Suitable Alternative for Human Cadaver Temporal Bo...
- A Study on Deep Neck Space Infections
- Teaching Ear Examination Skill to Undergraduate St...
- Early Intratympanic Methylprednisolone in Sudden S...
- Reconstructive Ladder for Transoral Resections of ...
- Technical Challenges in Temporal Bone Paragangliom...
- Consumer Technology for Sleep-Disordered Breathing...
- Drug-Induced Sleep Endoscopy as a Tool for Surgica...
- Clinical Outcomes in OSA—SLEEP GOAL—a More Holisti...
- Frictional Keratosis, Contact Keratosis and Smokel...
- A Rare Presentation of Inflammatory Myofibroblasti...
- A Case of Respiratory Epithelial Adenomatoid Hamar...
- Operative Therapie des frühen und fortgeschrittene...
- Therapieoptionen zum Ovarialkarzinom
- Anästhesiologische Aspekte beim Ovarialkarzinom
- Behandlung ausgedehnter Lokalrezidive der Mundhöhl...
- Hypoparathyreoidismus – eine Belastung für die Pat...
- The Impact of Immunodeficiency on NK Cell Maturati...
- Direct to Consumer Telemedicine
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Ετικέτες
Σάββατο 26 Ιανουαρίου 2019
Raynaud-Phänomen
Zusammenfassung
Das Raynaud-Phänomen (RP) ist eine häufige akrale Durchblutungsstörung bei der es durch eine pathologische Kontraktion kleiner arterieller Gefäße zu einem schmerzhaften Abblassen einzelner Akren (am häufigsten der Finger) kommt. Bei dem häufigen sog. primären RP liegt lediglich eine funktionelle Störung des Gefäßtonus vor, beim seltenen sekundären RP kommen zusätzlich strukturelle Änderungen im Bereich der Gefäße hinzu. Die Kenntnis dieser Erkrankung ist für den Dermatologen wichtig, da das sekundäre RP mit dem Vorliegen oder der Entwicklung schwerwiegender Grunderkrankungen, insbesondere einer systemischen Sklerose, assoziiert sein kann. Das diagnostische Vorgehen sowie die wichtigsten therapeutischen Ansätze werden in diesem Überblick zusammengefasst.
http://bit.ly/2SbT2v4
Neural Switch Asymmetry in Feature-Based Auditory Attention Tasks
Abstract
Active listening involves dynamically switching attention between competing talkers and is essential to following conversations in everyday environments. Previous investigations in human listeners have examined the neural mechanisms that support switching auditory attention within the acoustic featural cues of pitch and auditory space. Here, we explored the cortical circuitry underlying endogenous switching of auditory attention between pitch and spatial cues necessary to discern target from masker words. Because these tasks are of unequal difficulty, we expected an asymmetry in behavioral switch costs for hard-to-easy versus easy-to-hard switches, mirroring prior evidence from vision-based cognitive task-switching paradigms. We investigated the neural correlates of this behavioral switch asymmetry and associated cognitive control operations in the present auditory paradigm. Behaviorally, we observed no switch-cost asymmetry, i.e., no performance difference for switching from the more difficult attend-pitch to the easier attend-space condition (P→S) versus switching from easy-to-hard (S→P). However, left lateral prefrontal cortex activity, correlated with improved performance, was observed during a silent gap period when listeners switched attention from P→S, relative to switching within pitch cues. No such differential activity was seen for the analogous easy-to-hard switch. We hypothesize that this neural switch asymmetry reflects proactive cognitive control mechanisms that successfully reconfigured neurally-specified task parameters and resolved competition from other such "task sets," thereby obviating the expected behavioral switch-cost asymmetry. The neural switch activity observed was generally consistent with that seen in cognitive paradigms, suggesting that established cognitive models of attention switching may be productively applied to better understand similar processes in audition.
http://bit.ly/2R90hiL
Kimura’s Disease: A Diagnostic and Therapeutic Challenge
Abstract
Kimura's disease, also known as Eosinophilic Granuloma, is a rare chronic condition seen mainly in Oriental population. It presents with subcutaneous nodules, lymphadenopathy, salivary gland hypertrophy with peripheral eosinophilia and raised serum IgE levels; rarely renal involvement may also be present. Its etiology mainly remains unknown. We present a case series of two patients. Our first case is a middle aged female which presented with a parotid swelling, mimicking a parotid neoplasm. Further investigations revealed associated intra-parotid and cervical lymphadenopathy. An excisional biopsy in the form of Superficial Parotidectomy with lymph node excision was done. Histopathological examination of the excised specimen revealed it to be a case of Kimura's disease. Our second case, a young adult, presented with a gradually increasing post-auricular swelling. Preliminary investigations in this case pointed towards Kimura's disease. Excision biopsy of the lesion was done. Histopathological studies confirmed the diagnosis for the same. Both the patients are under our regular follow up and remain disease-free at a follow up of 1 year and 8 months respectively.
http://bit.ly/2HqWP3e
An Immunohistochemical Study of HIF-1 Alpha in Oral Epithelial Dysplasia and Oral Squamous Cell Carcinoma
Abstract
To evaluate and compare the expression of HIF-1 Alpha (HIF-1α) in oral epithelial dysplasia (OED) and various grades of Oral squamous cell carcinoma (OSCC). 30 cases each of OEDand OSCC were stained with HIF-1α antibody. Quantification of HIF-1α positive cellswas carried out and the data was statistically analysed. The mean % HIF-1α labeling index (HIF-1α LI) increased significantly from mild OED (32.11%), moderate OED (55.07%), to severe OED (64.58%). There was a statistically significant increase in the expression of HIF-1α as grades of OED increased. The mean HIF-1α LI % in well differentiated OSCC was 46.3%, Moderately differentiated OSCC—76.31% and Poorly differentiated OSCC—89.9%. The mean HIF-1α LI was found to increase with increasing grades of OSCC which was statistically significant (P < 0.05). Further a comparison of mean HIF-1α LI in OED with different histologic grades of OSCC by Independent samples t test was performed. We found statistically significant difference between OED and moderately differentiated OSCC and OED and poorly differentiated OSCC (P = 0.000). Progressive increase in expression of HIF-1α was noted from OED to OSCC. It can be postulated that epithelial dysplastic lesions with increased HIF-1α expression are at greater risk of malignant transformation, suggesting that the expression of HIF-1α is an early event in oral carcinogenesis.
http://bit.ly/2S4Uq2r
To Be Cautious or Not: Tension Pneumothorax After First Tracheostomy Tube Exchange
Abstract
Tracheostomy tube change is a relatively common procedure once a tracheo-cutaneous tract matures. Regular tracheostomy tube changes prevent the formation of granulation tissue and reduce bacterial colonization (Yaremchuk and Yaremchuk in Laryngoscope 113(1):1–10, 2003). However, serious complications such as subcutaneous emphysema, loss of airway and mediastinitis, can occur if the tube exchange is performed inappropriately. We present a rare association of tension pneumothorax following a tracheostomy tube exchange in a 50-year-old patient who underwent tracheotomy 3 days back. The patient was successfully managed conservatively with chest tube and supportive care.
http://bit.ly/2RWz3R1
Evaluation of Quality of Life and Pattern of Improvement of Bronchial Asthma in Chronic Rhinosinusitis Patients Treated by Functional Endoscopic Sinus Surgery
Abstract
Chronic inflammatory disorders of the upper airways are extremely prevalent and have a major impact on public health. Sinusitis and bronchial asthma are closely interrelated diseases and sinusitis is known to influence bronchial asthma in its severity and chronicity. Causal relationships have been proposed but not yet proved. The relationship between sinusitis and asthma is academically interesting and has important diagnostic and therapeutic implications. The present study is designed to evaluate the efficacy of functional endoscopic sinus surgery done as treatment for chronic rhinosinusitis on bronchial asthma patients, in terms of quality of life and pattern of improvement. Objectives of the study were to determine whether bronchial asthma and quality of life improved after functional endoscopic sinus surgery. This was an open labelled randomised control trial, done at ENT Department of Medical College, Thiruvananthapuram. Those in Group A underwent functional endoscopic sinus surgery and group B patients were given only medicines as per standard protocol. All of them received asthma treatment depending on asthma attacks and severity and followed up at specific intervals. Quality of life status and pattern of improvement of bronchial asthma among these patients were evaluated. Patients of chronic rhinosinusitis treated by functional endoscopic sinus surgery showed significant improvement in the mean asthma symptom score, asthma medication use score, pulmonary function test results, and quality of life assessment scores. Functional endoscopic sinus surgery could be considered early in the natural course of chronic rhinosinusitis with concomitant bronchial asthma.
http://bit.ly/2FHHo58
Leiomyosarcoma of Mandible: A Diagnostic Dilemma; Case Report and Review of Literature
Abstract
Leiomyosarcoma and its pleomorphic variant are rare entities in the head and neck region. Since they usually present as slow growing, discrete firm, and non-ulcerated painless mass, they seem to be deceptively benign and are thus misdiagnosed. Histopathological and immunohistochemical studies are the ways of getting a definitive diagnosis. Till date surgery has been the primary treatment but effectiveness of radiotherapy/chemotherapy is still questionable. Here, we describe a case of leiomyosarcoma in mandible along with discussion about the ways of diagnosis, its differentiation with its pleomorphic variant and their managements.
http://bit.ly/2CxPUQ7
Complications of Paediatric Cochlear Implantation in the Population of Uttarakhand
Abstract
Cochlear implants surgery is now routinely done at this center. Complications which have been experienced in cochlear implant surgery at our center are discussed, as a detailed knowledge about the complications and their early anticipation can save an expensive device and most importantly patients morbidity. To discuss the complications of the paediatric cochlear implantation in the population of Uttarakhand. The total of 60 patients were included in this study (age group 1–5 years) who had undergone the cochlear implantation surgery between Sept. 2015 and Sept. 2016. These patients were regularly monitored and followed up for 1 year. All the surgeries were performed by same team of surgeons. Rate of minor complications is 8.33% (reversible facial nerve paresis, injury to chorda tympani nerve, local skin reaction, perilymph gussher) and major complications is 5% (implant rejection and flap necrosis). The various complications should be closely monitored by the surgeon so that these can be avoided.
http://bit.ly/2RDtXd5
Suitable Alternative for Human Cadaver Temporal Bone Dissection: Comparative Micro Ear Anatomy of Cattle, Pig and Sheep with Human
Abstract
The study was undertaken to compare the micro ear anatomy of three commonly available animal models which are expected to have similar anatomy to human and to find out suitable model among them as an alternative for human cadaver temporal bone dissection. This is an observational study of comparison of micro ear anatomy of the three animal models with human. Decapitated heads of cattle, pig and sheep were collected from slaughter houses, soft tissues along with brain were removed and preserved in commercially available formalin preservative. CT scan was taken for the three specimens and 3D reconstructions were done. Each specimen was subjected to micro dissection and the anatomical features were studied and compared with human. Among the three animal models sheep is found to be an ideal model for a beginner because of ease of exposure of bone, very thin cortical bone, and no cellularity, good exposure of all the middle ear structures and similar interrelations of middle ear structures with human. Pig may not be an ideal model because of abundant fatty soft tissues, thick periosteum very narrow space occupied by the middle ear, difficulty in accessing cellularity small fragile ossicular chain and overhanging facial nerve.
http://bit.ly/2FMC6ES
A Study on Deep Neck Space Infections
Abstract
Deep neck space infections (DNSI) are serious diseases that involve several spaces in the neck. These are commonly seen in low socioeconomic group with poor oral hygiene, and nutritional disorders. These are bacterial infections originating from the upper aerodigestive tract. The incidence of this disease was relatively high before the advent of antibiotics. Treatment of DNSI includes antibiotic therapy, airway management and surgical intervention. Management of DNSI is traditionally based on prompt surgical drainage of the abscess followed by antibiotics or nonsurgical treatment using appropriate antibiotics in the case of cellulitis. This study was conducted to investigate the age and gender, clinical symptoms, site involved, etiology, co-morbidities, bacteriology, complications and outcomes in the patients of DNSI. A prospective study of deep neck space infections was conducted during the period July 2017 to July 2018 on the patients who attended the outpatient department and were admitted as inpatient in Safdarjung hospital, New Delhi. 40 Cases with DNSI all ages and both genders were included in the study. Patients who didn't require surgical intervention to drain pus were excluded. All parameters including age, gender, co-morbidities, presentation, site, bacteriology, complications, and investigations were studied. Due to advent of antibiotics, deep neck space infections are in decreasing trend. The common age group found to be affected is in 2nd and 3rd decade in our study. Out of all deep neck space infections, submandibular space infections were common (37.5%) followed by peritonsillar infections (12.5%). Infection of deep neck space remains fairly common and challenging disease for clinicians. Prompt recognition and treatment of DNSI are essential for an improved prognosis. Odontogenic and tonsillopharyngitis are the commonest cause. Key elements for improved results are the prompt recognition and early intervention. Special attention is required to high-risk groups such as diabetics, the elderly and patients with underlying systemic diseases as the condition may progress to life-threatening complications.
http://bit.ly/2FFiwLh
Teaching Ear Examination Skill to Undergraduate Students Using Check List
Abstract
For examination of ear, proper illumination is a pre requisite. Diseases related to ear may lead to altered sense of hearing and may affect normal balance system. If students are taught to examine ear using a check list, they may perform better. To teach ear examination to undergraduate students using a check list. Total 50 undergraduate students of M.B.B.S. attending E.N.T. clinic in Chirayu Medical College and Hospital were included in the study. They were given enrolment no. 1 to 50 and were divided into two groups. Group 1, enroll. no. 1 to 25 and group 2, enroll. no. 26 to 50. Group 1 was taught using check list and the Group 2 was taught without use of checklist. Both the groups were evaluated using check list. The group B students were again taught, using check list and were again evaluated using check list. Use of check list showed that there was statistically significant improvement in learning by students using check list in group 1 students compared to group 2 students who were taught without use of check list. The group 2 students also had improvement on evaluation, after they were taught using check list. Study suggests that use of check list for ear examination skill to undergraduate students has significant role and students learn better than when taught without use of checklist. Inclusion of checklist for teaching ear examination to undergraduate students may be considered.
http://bit.ly/2FLzHKp
Early Intratympanic Methylprednisolone in Sudden SNHL: A Frequency-wise Analysis
Abstract
Sudden sensorineural hearing loss is a dire medical emergency which must be treated at the earliest to get better long term hearing results. Our study aims to determine the efficacy of intratympanic steroid (Methylprednisolone) on auditory outcomes in patients of sudden sensorineural hearing loss and study the relation between time of onset of hearing loss to start of therapy and frequency-wise recovery of hearing loss. A prospective cohort clinical study with 33 patients with sudden hearing loss of 30 dB or more were treated with the intratympanic injection of methylprednisolone and the effect of the drug was observed. In this study, 33 patients with sudden onset (unilateral or bilateral) of hearing loss were treated with intratympanic methylprednisolone. The duration at which the drug was administered and the age of the participants was taken into consideration. Main outcome measures included audiometry results at low, medium and high hearing loss frequencies. The specific frequency at which the hearing improvement took place was tabulated. It was observed that hearing improved significantly if the steroid is injected within the first 4 days of onset (p < 0.05) at all the frequencies. A gain of 15 dB or more was achieved in more than 78% patients after injecting methylprednisolone intratympanically. A statistically significant association was found between recovery rate and frequency of hearing loss with patients showing greater improvement at low hearing loss frequency in comparison to mid and high frequencies (p < 0.05). The drug efficacy does not change with the age of the patient.
http://bit.ly/2RVKxnH
Reconstructive Ladder for Transoral Resections of Oropharyngeal Cancers
Abstract
Purpose of Review
Transoral robotic surgery (TORS) now offers extended reach and capability to the head and neck oncologic surgeon, but in doing so, provides a reconstructive dilemma. The objective of this manuscript is to discuss the most recent advances and options available after resection with TORS.
Recent Findings
The latest research provides a common framework for surgeons to classify the type of oropharyngeal defect. A variety of reconstructive options described include secondary intent, modifications to existing local and regional flaps, and advances utilizing robotic assistance in free flap reconstruction.
Summary
There exists a multitude of reconstructive options with appropriate considerations for a stepwise approach based on patient-specific factors, surgeon capability, and the extent of the oropharyngeal defect. Just as robotic resection extends the capability in extirpation, it is now being used to refine free flap inset in the appropriate case.
http://bit.ly/2G0G0tU
Technical Challenges in Temporal Bone Paraganglioma Surgery: a Clinical Review
Abstract
Purpose of the Review
Temporal bone paragangliomas have always presented the otologist with their ultimate challenge. Surgical management is difficult, dangerous and demanding. It is also often associated with increased cranial nerve deficits and decreased quality of life for the patient. Management protocols for patients with temporal bone paragangliomas are changing as a result of advances in knowledge and technical developments. Multi-disciplinary care is now recommended for most patients with surgical intervention becoming restricted for the most difficult tumours.
Recent Findings
Previously considered unresponsive or resistant to radiotherapy, recent experiences using stereotactic radiosurgery techniques suggest that this is not correct. Tumour growth can be halted in some and slowed down in others. Advances in molecular medicine have defined a number of paraganglioma predisposition syndromes. Recognition of these syndromes is essential. Paragangliomas are now considered to be pioneer models of genetic-based personalised medical care.
Summary
This review aims to define the best current management plan for paragangliomas arising in, or involving, the temporal bone. It alerts surgeons to critical phases of surgical technique.
http://bit.ly/2FRV7Xj
Consumer Technology for Sleep-Disordered Breathing: a Review of the Landscape
Abstract
Purpose of Review
The consumer market for devices that quantify sleep is quickly evolving. We conducted a review of the consumer technology available for sleep disorders, including its potential and limitations to screen obstructive sleep apnea (OSA).
Recent Findings
There are many commercial devices claiming to objectively measure sleep, but only a few are tested rigorously in research. We critically review the technology available, including its overall ability to provide objective measures of sleep (total sleep time (TST), sleep efficiency (SE), sleep latency (SL), wake after sleep onset (WASO)), and to estimate apnea-hypopnea indexes in OSA patients.
Summary
Although consumer devices performed similarly to standard actigraphy, they still overestimated TST and SE, and underestimated WASO and SL. Biomotion sensors and mattress-based devices showed potential for use as an OSA screening tool. However, research in the sleep-disordered breathing (SDB) population is limited, needs further external validation, and should be implemented in the course of multiple days.
http://bit.ly/2G2Pdle
Drug-Induced Sleep Endoscopy as a Tool for Surgical Planning
Abstract
Purpose of Review
To review whether drug-induced sleep endoscopy (DISE) aids in obstructive sleep apnea surgical planning, if it changes the initial proposal, and if so, does it contribute to increased surgical success or unnecessary morbidity?
Recent Findings
A DISE and surgical outcomes multicenter cohort study (n = 275) reported no association for surgical outcomes with velopharyngeal and epiglottic collapse. Oropharyngeal and tongue base collapse on the other hand were associated with lower odds of surgical response.
Summary
DISE changes surgical planning mainly in regard to the approach of the tongue base and epiglottis, as these structures usually do not collapse in the awake state. The decision of velopharyngeal surgery usually does not change, as the vast majority demonstrate velopharyngeal collapse in DISE. Whether DISE increases or not, surgical success is controversial, with conflicting published data. However, poorer surgical outcomes have been associated with velopharyngeal concentric, oropharyngeal lateral wall, and tongue base collapse.
http://bit.ly/2FP5RFP
Clinical Outcomes in OSA—SLEEP GOAL—a More Holistic Approach
Abstract
Purpose of Review
Obstructive sleep apnea (OSA) is a systemic disease that is due to a narrow upper airway that collapses and obstructs during sleep, which results in frequent nocturnal hypoxemia, sympathetic overdrive, tachycardia, nocturnal hypertension, and oxidative metabolic stress. Symptoms include unrefreshed sleep, daytime tiredness, loss of memory, irritability, lack of concentration, poor work productivity, poor quality of life (QOL), mood swings, and even depression. This upper airway disorder can lead to systemic diseases such as hypertension, cardiovascular events, myocardial infarct, and fatal arrhythmias.
Recent Findings
The standard diagnostic test for OSA is commonly assumed to be the overnight polysomnography (PSG); however, it is widely known that there is discordance between the levels of AHI (apnea–hypopnea index) used to denote outcomes/success of therapy and real-world clinical outcomes such as QOL, patient perception of disease, cardiovascular measures, and/or survival.
Summary
Hence, the use of a single parameter AHI is inadequate and unrealistic; sleep specialists need more holistic and less biased parameters to assess treatment outcomes. Some of these parameters include snoring level, sleep satency, execution time, Epworth Sleepiness Scale, blood pressure, gross weight (BMI), oxygen duration below 90%, AHI, and QOL scores.
http://bit.ly/2G3jRv1
Frictional Keratosis, Contact Keratosis and Smokeless Tobacco Keratosis: Features of Reactive White Lesions of the Oral Mucosa
Abstract
White lesions of the oral cavity are quite common and can have a variety of etiologies, both benign and malignant. Although the vast majority of publications focus on leukoplakia and other potentially malignant lesions, most oral lesions that appear white are benign. This review will focus exclusively on reactive white oral lesions. Included in the discussion are frictional keratoses, irritant contact stomatitis, and smokeless tobacco keratoses. Leukoedema and hereditary genodermatoses that may enter in the clinical differential diagnoses of frictional keratoses including white sponge nevus and hereditary benign intraepithelial dyskeratosis will be reviewed. Many products can result in contact stomatitis. Dentrifice-related stomatitis, contact reactions to amalgam and cinnamon can cause keratotic lesions. Each of these lesions have microscopic findings that can assist in patient management.
http://bit.ly/2U9yVL4
A Rare Presentation of Inflammatory Myofibroblastic Tumor in the Nasolabial Fold
Inflammatory myofibroblastic tumor (IMT) is a benign lesion that occurs most frequently in the soft tissues and viscera. In the head and neck region, the tumor has been reported to occur in the orbit, tongue, nasopharynx, larynx, and paranasal sinuses and the central nervous system. Despite being a benign lesion, it exhibits infiltrative and destructive behaviours, making histopathological examination necessary to confirm the diagnosis. We report the case of a 38-year-old female presented with a right nasolabial fold mass, which was confirmed histologically to be an IMT. Surgical excision of the mass was achieved through a sublabial approach with an uneventful postoperative period. To the best of our knowledge, this is the first reported case of an IMT in the nasolabial fold.
http://bit.ly/2AX43X8
A Case of Respiratory Epithelial Adenomatoid Hamartoma (REAH) in a Patient with History of Radiation Exposure
Respiratory epithelial adenomatoid hamartomas (REAHs) are becoming a more commonly recognized otolaryngologic tumor and are often misdiagnosed as inverted papilloma. Here, we present such a case in a patient with history of previous radiation exposure. Otolaryngologists and pathologists should be aware of the mucinous histological appearance of REAH to help differentiate from other growths. Given our patient's history, an association between REAH and previous radiation exposure is worth consideration.
http://bit.ly/2Dppt0Y
Operative Therapie des frühen und fortgeschrittenen Ovarialkarzinoms
Zusammenfassung
Hintergrund
Die operative Therapie des Ovarialkarzinoms ist neben der systemischen Therapie ein grundlegender Pfeiler in der Behandlungsstrategie. Grundsätzlich hat die Operation eine duale Bedeutung: Sie dient zum einen als Grundlage des FIGO-Stagings und ist demnach die wichtigste diagnostische Methode. Andererseits hat sie unmittelbaren Einfluss auf die Prognose und ist Teil eines meist multimodalen und interdisziplinären Therapiekonzepts beim primären Ovarial‑, Tuben- und Peritonealkarzinom.
Ergebnisse
Während es sich in den frühen Stadien bis FIGO IIA mehrheitlich um Komplettierungs- sowie Staging-Operationen handelt, sollte das Ziel der Operation beim fortgeschrittenen Karzinom die maximale Tumorreduktion sein, häufig verbunden mit der Notwendigkeit multiviszeraler Eingriffe. Das operative Staging im Frühstadium bis FIGO IIA sollte adäquat sowie komplett durchgeführt werden und definierte Operationsschritte beinhalten. Da der verbleibende, makroskopisch sichtbare Tumorrest ein entscheidender Prognosefaktor für das Gesamtüberleben ist, sollte das Ziel der Operation im fortgeschrittenen Stadium immer eine makroskopische Komplettresektion sein. Bei Patientinnen mit fortgeschrittenem Ovarialkarzinom ab dem Stadium FIGO IIIC sollte bei klinisch unauffälligen Lymphknoten und einer makrokoskopischen Komplettresektion auf eine systematische pelvine und paraaortale Lymphonodektomie unbedingt verzichtet werden. Die primäre Operation gilt auch in der aktuellen interdisziplinär und interprofessionell abgestimmten S3-Leitlinie als Standardtherapie. Methoden wie PIPAC oder HIPEC sollten nicht außerhalb klinischer Studien zur Anwendung kommen.
Diskussion
Der postoperative Tumorrest ist der entscheidendste Prognosefaktor für das progressionsfreie und Gesamtüberleben. In den Frühstadien sollte ein adäquates Staging erfolgen, wohingegen in den häufigeren fortgeschrittenen Stadien multiviszerale Resektionen erforderlich sind, welche eine interdisziplinäre Zusammenarbeit erforderlich machen.
http://bit.ly/2FUgzuG
Anästhesiologische Aspekte beim Ovarialkarzinom
Zusammenfassung
Hintergrund
Die perioperative, anästhesiologische Betreuung von Ovarialkarzinompatientinnen im Rahmen von zytoreduktiven Operationen ist durch erkrankungsspezifische Komorbiditäten und therapieimmanente anästhesiologische Besonderheiten gekennzeichnet. Hierzu gehören z. B. eine mögliche präoperative Anämie, die perioperative Hypothermie oder eine mögliche Verdünnungskoagulopathie. Dabei stellen die intraoperative Flüssigkeits- und Volumensubstitution, Transfusion und Katecholamintherapie eine besondere anästhesiologische Herausforderung bei zytoreduktiven Operationen dar.
Ergebnisse
Bereits im Rahmen der präoperativen Evaluierung sollten erkrankungsspezifische Komorbiditäten wie Darmpassagehindernisse, maligner Aszites, Pleuraergüsse sowie präoperative Anämien diagnostiziert und ggf. therapiert werden. Ein präoperatives Vorwärmen der Patienten mindert das Risiko einer Redistributionshypothermie bei Narkoseeinleitung und damit das Risiko einer perioperativen Hypothermie und Nachbeatmung. Bei mangelnder Evidenz für oder gegen die ausschließliche Nutzung balancierter Vollelektrolytlösung empfiehlt sich eine bedarfsadaptierte Flüssigkeitssubstitution in Verbindung mit dem Einsatz von kolloidalen Infusionslösungen und ggf. Substitution von gefrorenem Frischplasma (GFP) und Applikation von Antifibrinolytika. Insbesondere bei präoperativ bestehendem malignem Aszites und im Rahmen einer intraoperativen Deperitonealisierung mit zu erwartenden großen Volumenverlusten kann der Einsatz eines erweiterten hämodynamischen Monitorings zur zielgerichteten Volumentherapie indiziert sein.
Schlussfolgerungen
Die perioperative anästhesiologische Versorgung sollte dem individuellen und für das Ovarialkarzinom typischen Risikoprofil angepasst werden. Um dem u. a. durch ausgeprägte operative Deperitonealisierung und Aszites ausgelösten Proteinverlust Rechnung zu tragen, empfiehlt sich eine präoperative Optimierung des Allgemeinzustands der Patientinnen. Eine bedarfsgerechte Volumentherapie und der perioperative Wärmeerhalt spielen hierbei eine zentrale Rolle.
http://bit.ly/2DCtq2j
Behandlung ausgedehnter Lokalrezidive der Mundhöhle und des Oropharynx
Zusammenfassung
Hintergrund
Die Behandlung ausgedehnter Lokalrezidive der Mundhöhle und des Oropharynx gehört zu den größten Herausforderungen in der onkologischen Therapie der Kopf-Hals-Region. In der Regel erhielten diese Patienten im Rahmen der Therapie ihres Primärtumors neben einer chirurgischen Resektion bereits eine adjuvante Radiotherapie. Aus diesem Grund ist eine erneute Bestrahlung der rezidivierenden Karzinome häufig nur noch in palliativer Intention möglich. Da trotz erstaunlicher Fortschritte in der Entwicklung moderner Wirkstoffe aktuell auch die medikamentöse Systemtherapie lediglich der Symptomkontrolle dienen kann, hat die Rettungschirurgie in diesen Fällen den bedeutendsten Stellenwert.
Schlussfolgerungen
Die wichtigste Voraussetzung für die Durchführung einer solchen radikalen rettungschirurgischen Operation ist allerdings, dass es in der Tumorumfelddiagnostik keine Hinweise auf das Vorliegen von Fernmetastasen gibt. Darüber hinaus ist prätherapeutisch unbedingt zu klären, ob eine R0-Resektion mit ausreichendem Sicherheitsabstand möglich sein wird, ohne vital notwendige Strukturen wie das Hirngewebe versorgende Endarterien oder essenziell zu erhaltende Anteile des Neurokraniums zu gefährden. Auch ist darauf zu achten, dass bei der ablativen Therapie der Erhalt oder die Wiederherstellung von wichtigen Funktionen wie Sprechen und Schlucken berücksichtigt wird. Daher ist eine solche radikal-chirurgische Maßnahme nur durch die sofortige Rekonstruktion des entfernten Gewebes durch z. T. ausgedehnte osteomyokutane Transplantate gerechtfertigt. Hier ist das gesamte Spektrum der rekonstruktiven Kopf-Hals-Chirurgie inklusive diversifizierter mikrovaskulärer Techniken vorzuhalten, um dem individuellen Patient sowohl eine langfristige Prognose zu schaffen als auch eine angemessene Lebensqualität zu erhalten.
http://bit.ly/2Uhj0KX
Hypoparathyreoidismus – eine Belastung für die Patienten
Zusammenfassung
Hypoparathyreoidismus (HPT) ist eine der häufigsten Komplikationen einer Schilddrüsenkrebsoperation. Die Lebensqualität von Patienten mit HPT ist im Vergleich zu Normpopulationen oder gematchten Kontrollindividuen stark eingeschränkt. Eine reduzierte Lebensqualität zeigt sich gleichermaßen in physischen und psychischen Bereichen. Wenige Studien haben bisher die Lebensqualität von Schilddrüsenkrebsüberlebenden mit postoperativem HPT erhoben. Einschränkungen der Lebensqualität von Patienten mit postoperativem HPT nach Schilddrüsenkrebs lassen sich nicht nur durch die Erkrankung Krebs und ihre Behandlung erklären, sondern auch durch HPT selbst. Weitere Forschung in Bezug auf die Therapie von HPT in Deutschland und die Lebensqualität von HPT-Patienten nach Schilddrüsenkrebs ist erforderlich. HPT ist die einzige endokrine Funktionsstörung, bei der das fehlende Hormon im Rahmen der Standardtherapie nicht ersetzt werden kann. Die aktuelle Therapie besteht aus Kalzium- und Vitamin-D-Analogen unter regelmäßiger Überprüfung von Laborwerten. Die empfohlene Überprüfung der Blutwerte muss häufiger durchgeführt werden als es im Rahmen von regulären Krebsnachsorgeuntersuchungen möglich wäre. Es gibt aktuell keine systematischen Erhebungen, wie HPT-Patienten in Deutschland behandelt werden.
http://bit.ly/2DAG5Tg
The Impact of Immunodeficiency on NK Cell Maturation and Function
Abstract
Purpose of Review
Natural killer cells are innate lymphoid cells (ILCs) that play critical roles in human host defense and are especially useful in combating viral pathogens and malignancy.
Recent Findings
The NK cell deficiency (NKD) is particularly underscored in patients with a congenital immunodeficiency in which NK cell development or function is affected. The classical NK cell deficiency (cNKD) is a result of absent or a profound decrease in the number of circulating NK cells. In contrast, functional NKD (fNKD) is characterized by abnormal NK cell function but with normal number of NK cells. The combined immune deficiencies with significant impact on NK cells are not considered classical or functional NK cell deficiencies. In these disorders, the impairment of NK cells represents an important aspect of the overall immunodeficiency. In turn, this leads to improved insights on the NK cell development and function.
Summary
Here, we detail the NK cell biology based upon recent natural killer cell defects described in combined immune deficiencies.
http://bit.ly/2T6b0ME
Direct to Consumer Telemedicine
Abstract
Purpose of Review
Telemedicine uses technology to connect patients and data with providers at a distance. Direct to consumer telemedicine is a rapidly growing segment of the industry.
Recent Findings
The telehealth market has skyrocketed in recent years, making it a multi-billion dollar industry. Direct to consumer telehealth, dominated by the for-profit private sector, is the most popular form.
Summary
Direct to consumer telemedicine is a subset of telehealth that shows promise in increasing access to and engagement in medical care. Quality assurance, reimbursement, and regulatory oversight are important factors in assuring appropriate widespread adoption.
http://bit.ly/2AS1sOg
VideoEndocrinology™ New Open Access Video
Parapharyngeal Dissection for Papillary Thyroid Cancer
Justin Tran, Mark Zafereo
The post VideoEndocrinology™ New Open Access Video appeared first on American Thyroid Association.
http://bit.ly/2T4XFEg
New Insights into the Utility of Omalizumab
Publication date: Available online 26 January 2019
Source: Journal of Allergy and Clinical Immunology
Author(s): Juan Carlos Cardet, Thomas B. Casale
http://bit.ly/2RgsN27
Effects of continuous and intermittent parathyroid hormone administration on midpalatal suture expansion in rats
Publication date: Available online 25 January 2019
Source: Archives of Oral Biology
Author(s): Jianru Yi, Li Mei, Xue Li, Wei Zheng, Yu Li, Zhihe Zhao
Abstracts
Objectives
The aim of this study was to investigate the effects of continuous parathyroid hormone (cPTH) and intermittent parathyroid hormone (iPTH) on bone formation and bone resorption in midpalatal suture during maxillary expansion.
Methods
Forty-eight male SD rats were randomly divided into four groups (n = 12 each), including the control, the expansion (E), the E + cPTH, and the E + iPTH. A thermosensitive controlled-release hydrogel was synthesized for cPTH administration. All animals were sacrificed after seven days. Microcomputed tomography, histochemical staining and real-time PCR were used to investigate the bone remodeling of midpalatal suture. Serum chemistry was adopted to evaluate the systemic condition of experimental animals.
Results
The suture width was increased by the expansion, and further elevated by cPTH and iPTH administration. Both regimes improved bone volume fraction and trabecular thickness of suture bone region. Moreover, both cPTH and iPTH decreased SOST expression and enhanced the expression of β-catenin and Col-I. cPTH increased RANKL expression, inhibited OPG expression, and resulted in an increment of osteoclasts, while iPTH had no influence on osteoclastogenesis. The serum calcium concentration was enhanced by PTH administration.
Conclusion
Both cPTH and iPTH promote midpalatal suture expansion by enhancing bone formation, probably via SOST downregulation and the resulting β-catenin activation. Our results demonstrated that PTH administration may have potential to be an adjunctive approach for maxillary expansion treatment.
http://bit.ly/2ROJAOX
Traitement des kystes épidermoïdes du scrotum par laser CO2 : deux cas et revue de la littérature
Publication date: Available online 26 January 2019
Source: Annales de Dermatologie et de Vénéréologie
Author(s): E. Bahloul, M. Mseddi, F. Hammemi, K. Souid, M. Amouri, H. Turki
Résumé
Introduction
Les kystes épidermiques scrotaux sont des tumeurs bénignes du scrotum. Le caractère chronique de ces lésions, leur aspect inesthétique et leur survenue chez des sujets jeunes s'accompagnent souvent d'un retentissement psychologique. Nous rapportons deux cas de kystes épidermoïdes scrotaux traités par le laser CO2 en mode superpulsé.
Observations
Les paramètres utilisés étaient une puissance de respectivement 10 et 10,8 W pour une durée de pulse de 20 ms avec une durée de pause similaire. Les séances étaient réalisées après anesthésie locale par lidocaïne. Une à deux séances de 10 minutes étaient nécessaires pour traiter tous les kystes. Des soins locaux à base de corps gras et d'antibiotique local étaient prescrits après la séance laser. Les résultats esthétiques étaient excellents, satisfaisant nos patients. Aucune complication ou récidive n'a été notée. Nous avons également traité de la même manière un patient ayant un kyste scrotal unique, avec des résultats excellents et sans complication ni récidive.
Discussion
Une revue exhaustive de la littérature a été réalisée à partir du moteur de recherche PubMed® avec les mots clés « EpidermalCyst », « lasers » et « scrotum ». Seuls deux cas cliniques de kystes scrotaux traités par laser étaient rapportés, un avec un laser Nd-YAG et l'autre avec un laser Diode. L'utilisation du laser CO2 n'a pas été rapportée dans le traitement des kystes épidermoïdes scrotaux, alors qu'elle semble permettre un traitement efficace et sans récidive.
Summary
Background
Epidermal cyst is a common cutaneous lesion that may be located in the scrotum and is seen especially in young and middle-aged men. This entity is not only chronic but can also affect the patient's appearance, thus having an impact on their quality of life. Surgical excision is the classical procedure to remove such cysts, but it can be time-consuming and leave unpleasant scars. In this report, we included patients with scrotal cysts treated with the CO2 laser.
Patients and methods
This study reports on two patients referred with epidermal scrotal cysts in whom CO2 laser was used in superpulse mode at 10 to 10.8 W and with a pulse duration of 20 ms. The session was performed after local anesthesia with lidocaine. One to two 10-minute sessions were required to treat all cysts. All the patients were satisfied with the cosmetic results and no complications or recurrences were observed at follow-up. We also treated a patient with a single scrotal cyst in the same way, with excellent results.
Discussion
A literature review was performed using the Medline database. It revealed only two case reports involving scrotal cysts treated with laser using Nd-YAG laser and Diode Laser. There is no reported use of CO2 laser in the treatment of scrotal cysts. Its use in superpulsed mode in the cases we describe is innovative. This procedure appears to be a safe, tolerable, and efficacious approach for the removal of epidermal scrotal cysts resulting in excellent cosmetic results and without recurrence.
http://bit.ly/2Re206s
Érythème généralisé fébrile et choc : choc toxinique staphylococcique
Publication date: Available online 26 January 2019
Source: Annales de Dermatologie et de Vénéréologie
Author(s): P.-M. Dugourd, A. Dupont, T. Hubiche, C. Chiaverini, A. Alkhalifa, L. Roudiere, A. Tristan, C.-A. Gustave, P. Del Giudice
Résumé
Introduction
Le toxic shock syndrome (TSS) a été décrit pour la première fois par Todd en 1978. Cette publication du Lancet rapportait 7 cas d'enfants présentant une fièvre, un exanthème, une hypotension et une diarrhée associés à une défaillance multiviscérale. C'est dans les années 1980 qu'une association entre TSS et femmes en période de menstruation utilisant des tampons hyperabsorbants a été découverte. Après le retrait du marché de ce type de tampon, le TSS a quasiment disparu. Nous rapportons un nouveau cas de TSS survenu chez une adolescente.
Observation
Une jeune fille de 15 ans était hospitalisée en réanimation pour un tableau brutal de choc septique avec troubles de la vigilance et douleurs abdominales diffuses. L'examen dermatologique trouvait un exanthème maculeux diffus. Le bilan biologique montrait une cytolyse hépatique (ASAT 101 U/L, ALAT 167 U/L, bilirubine totale 68 μmol/L) et un syndrome inflammatoire. La ponction lombaire et les hémocultures étaient stériles. La tomodensitométrie cérébrale et thoraco-abdomino-pelvienne était normale. Dans un contexte de menstruation, la patiente avait utilisé un tampon hygiénique plus de 24 h. Le prélèvement vaginal et la culture du tampon mettaient en évidence un S. aureus producteur de la toxine TSST-1. La prise en charge consistait en mesures de réanimation et traitement par une association amoxicilline-acide clavulanique et clindamycine pendant 10 jours.
Conclusion
Un tableau de choc septique associé à un exanthème maculeux diffus doit faire évoquer le diagnostic de TSS, surtout dans un contexte menstruel.
Summary
Background
Toxic shock syndrome (TSS) was first described by Todd in 1978. The relevant Lancet publication reported 7 cases of children with fever, exanthema, hypotension and diarrhoea associated with multiple organ failure. An association between TSS and use of hyper-absorbent tampons in menstruating women was discovered in the 1980s. Following the market withdrawal of such tampons, TSS virtually disappeared. Herein we report a new case of TSS in a 15-year-old girl.
Patients and methods
A 15-year-old patient was admitted to intensive care for severe sepsis and impaired consciousness associated with diffuse abdominal pain. Dermatological examination revealed diffuse macular exanthema. Laboratory tests showed hepatic cytolysis (ASAT 101 U/L, ALAT 167 U/L, total bilirubin 68 μmol/L) and an inflammatory syndrome. Lumbar puncture and blood cultures were sterile while thoraco-abdomino-pelvic and brain scans were normal. The patient was menstruating and had been using a tampon over the previous 24 hours. Vaginal sampling and tampon culture revealed TSST-1 toxin-producing S. aureus. Management consisted of intensive care measures and treatment with amoxicillin-clavulanic acid and clindamycin for 10 days.
Conclusion
In case of septic shock associated with diffuse macular exanthema a diagnosis of TSS must be envisaged, particularly in menstruating women.
http://bit.ly/2WllVE8
Hamartome folliculaire basaloïde : étude anatomoclinique
Publication date: Available online 26 January 2019
Source: Annales de Dermatologie et de Vénéréologie
Author(s): G. Hazemann, C. Michel, A. Mahé, D. Lipsker, B. Cribier
Résumé
Introduction
L'hamartome folliculaire basaloïde (HFB) est une tumeur rare décrite en 1985. Elle possède des similarités cliniques et histologiques avec le carcinome basocellulaire (CBC), notamment infundibulo-kystique. Nous avons effectué une étude anatomoclinique monocentrique de cette entité de diagnostic parfois difficile.
Patients et méthodes
Les cas classés HFB au laboratoire de dermatopathologie de Strasbourg ont été inclus et analysés en coloration hématoxyline-éosine et avec les immunomarquages Ber-EP4 et PHLDA1. Le diagnostic était retenu lorsqu'il existait des formations épithéliales arborescentes développées à partir d'un follicule pileux. Les renseignements cliniques ont été collectés à partir des demandes d'analyse et des dossiers cliniques.
Résultats
Nous avons retenu 15 cas survenus chez 13 patients. L'âge moyen était de 44,8 ans et le sex-ratio de 5/8. Il s'agissait de papules de couleur chair, rose ou brune, mesurant 0,3 à 1,2 cm, sans localisation préférentielle. Trois patientes avaient des lésions multiples, groupées sur un sein dans un cas, diffuses sur le dos dans un cas et hémicorporelles et linéaires, associés à des anomalies squelettiques, réalisant le tableau du syndrome de Happle-Tinschert dans un cas. Tous les HFB étaient limités au derme superficiel et moyen, formés d'éléments épithéliaux basophiles arborescents, verticaux dans deux tiers des cas et connectés à l'épiderme dans 14 cas. Des zones périphériques plus basophiles et centrales plus éosinophiles, une organisation palissadique et des fentes de rétraction à distance, entre le stroma et le derme, étaient fréquemment observées. Il y avait toujours des kystes épidermoïdes ou des structures sébacées orientant vers une origine folliculaire. L'immunomarquage Ber-EP4 était positif uniquement en périphérie des lobules tumoraux et PHLDA1 n'était que très peu exprimé.
Discussion
L'HFB est une entité unique et distincte du CBC. Il peut être solitaire, isolé. Il peut aussi être multiple, à disposition linéaire unilatérale, éventuellement associé à des manifestations extracutanées homolatérales dans le cadre du syndrome d'Happle-Tinschert. Il peut enfin être multiple et généralisé, parfois accompagné de maladies auto-immunes. Il est important de le différencier du CBC, car il est bénin.
Summary
Introduction
Basaloid follicular hamartoma (BFH) is a rare tumor first described in 1985. It bears clinical and histologic similarities with basal cell carcinoma (BCC), in particular the so-called infundibulocystic form. We performed a single-center clinicopathological study of a series of typical cases of this entity that is occasionally difficult to diagnose.
Materials and methods
All cases of BFH seen at the Dermatopathology Laboratory of Strasbourg University Hospital were included and analyzed by means of HE staining and Ber-EP4 and PHLDA1 immunolabelling. Diagnosis was made in the event of basaloid proliferation with anastomosing cords developed from a hair follicle. Clinical data were collected from clinical files.
Results
We identified 15 cases in 13 patients of mean age 44.8 years (range: 4 to 90) and the sex-ratio was 5/8. Lesions consisted of flesh-colored papules measuring 0.3 to 1.2 cm in diameter, without any preferential site. Three patients had multiple lesions consisting of several coalescent papules on a breast for one, sparse papules on the back for another, and hundreds of linear unilateral BFHs, associated with osseous abnormalities, characteristic of Happle-Tinschert syndrome, for the third. All tumors were limited to the superficial and mid dermis, with a vertical orientation and connection to the epidermis in 14 of the 15 patients. In some cases, the outermost cells were basophilic while the central cells were eosinophilic. Peripheral palisading and clefting were frequently observed. Keratin cysts or sebaceous ducts were consistently present, indicating follicular differentiation. Ber-EP4+ cells were restricted to the periphery of the cords and PHLDA1 was weakly expressed.
Discussion
BFH is a rare entity that must be differentiated from BCC. It presents as solitary or multiple lesions, either grouped in plaques or with a generalized or linear unilateral distribution. Generalized BFH may be associated with autoimmune diseases and linear unilateral BFH with osseous, dental and cerebral abnormalities in Happle-Tinschert syndrome. It is important to distinguish BFH from BCC to avoid inappropriate aggressive treatment.
http://bit.ly/2Rf7RIE
Un intérêt inédit pour le prurigo nodulaire
Publication date: Available online 26 January 2019
Source: Annales de Dermatologie et de Vénéréologie
Author(s): L. Misery
http://bit.ly/2WnT3uS
Precursor B-cell development in bone marrow of Good syndrome patients
Publication date: Available online 25 January 2019
Source: Clinical Immunology
Author(s): Lucía del Pino Molina, Marjolein Wentink, Marcel van Deuren, Martin van Hagen, C.I. Edvard Smith, Mirjam van der Burg
Abstract
Good syndrome is an immunodeficiency presenting with thymoma, hypogammaglobulinemia and almost absent B cells. To investigate the origin of the B-cell lymphopenia in these patients, we studied B cell differentiation in the bone marrow of Good syndrome patients. We found very low numbers of precursor B cells in bone marrow of Good syndrome patients and a differentiation arrest after the pro-B-cell stage; this is different from other agammaglobulinemia patients with a defect in pre B-cell receptor signaling.
http://bit.ly/2TfUolD
Corrigendum to “Long-term survival and late toxicities of elderly nasopharyngeal carcinoma (NPC) patients treated by high-total- and fractionated-dose simultaneous modulated accelerated radiotherapy with or without chemotherapy” [Oral Oncol. 89 (2019) 40–47]
Publication date: Available online 26 January 2019
Source: Oral Oncology
Author(s): Jingjing Miao, Lin Wang, Manyi Zhu, Weiwei Xiao, Haijun Wu, Muping Di, Yuqing Huang, Shaomin Huang, Fei Han, Xiaowu Deng, Xiang Guo, Chong Zhao
http://bit.ly/2RecqTv
Reprint of Long-term survival and late toxicities of elderly nasopharyngeal carcinoma (NPC) patients treated by high-total- and fractionated-dose simultaneous modulated accelerated radiotherapy with or without chemotherapy
Publication date: Available online 25 January 2019
Source: Oral Oncology
Author(s): Jingjing Miao, Lin Wang, Manyi Zhu, Weiwei Xiao, Haijun Wu, Muping Di, Yuqing Huang, Shaomin Huang, Fei Han, Xiaowu Deng, Xiang Guo, Chong Zhao
Abstract
Background
To analyse the survival and late toxicities of elderly nasopharyngeal carcinoma (NPC) patients treated by intensity-modulated radiotherapy (IMRT) with the high-total- and fractionated-dose simultaneous modulated accelerated radiation therapy (SMART) boost technique and to identify the effect of concurrent chemotherapy for these patients.
Methods
Two hundred and fifty-four elderly patients (age ≥ 60.0) with newly diagnosed non-metastatic NPC were retrospectively analysed. Statistical analyses were performed using the SPSS software program.
Results
The actual mean total and fractionated doses delivered to the gross tumour volume of the nasopharynx (GTVnx) were 74.55 Gy and 2.49 Gy, respectively. The 5-year locoregional recurrence-free survival (LRRFS), distant metastasis-free survival (DMFS), disease-specific survival (DSS) and overall survival (OS) of the whole cohort were 93.0%, 85.7%, 83.2% and 74.1%, respectively. No grade 4 acute or late radiotherapy-induced toxicities were observed. Of 247 patients with stage II–IVb disease, 89 patients received radiotherapy (RT) alone, and 158 patients received concurrent chemoradiotherapy (CCRT), and the 5-year LRRFS, DMFS, DSS and OS of the RT-alone group vs. the CCRT group were 94.0% vs. 92.2%, 83.5% vs. 86.2%, 81.8% vs. 83.1% and 74.0% vs. 72.8% (all P > 0.05), respectively. Multivariate analyses showed that CCRT was not an independent predictor for LRRFS, DMFS, DSS and OS (all P > 0.05).
Conclusion
High-total- and fractionated-dose SMART boost IMRT could obtain a satisfactory long-term outcome with mild late toxicity in elderly NPC patients. The role of CCRT needs to be further studied to optimize the treatment strategy and improve the overall survival.
http://bit.ly/2Wt5lT4
Health-related quality of life in patients with cleft palate: reproducibility, responsiveness and construct validity of the Dutch version of the VELO questionnaire
Publication date: Available online 26 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Laura Bruneel, Cassandra Alighieri, Sofie De Smet, Kim Bettens, Marc De Bodt, Kristiane Van Lierde
Abstract
Objectives
Recently, the Velopharyngeal Insufficiency (VPI) Effects on Life Outcomes (VELO) questionnaire, which evaluates the impact of speech and swallowing difficulties on health-related quality of life (HRQoL) in patients with VPI (Skirko et al., 2012), was translated to Dutch (Bruneel et al., 2017). The purpose of this study was to evaluate the reproducibility, responsiveness and construct validity of this Dutch version of the questionnaire.
Methods
To evaluate the reproducibility, 50 parents and 14 children with cleft palate re-completed the questionnaire after two weeks. Thirty-five parents and 8 children with cleft palate completed the VELO questionnaire after one year for the evaluation of the responsiveness. The correlation between age and the VELO questionnaire (construct validity), and the internal consistency (Cronbach's α) were re-determined based on the responses of 73 parents and 24 children.
Results
Based on descriptive statistics, results of the Wilcoxon signed rank-test, and the absolute (SEM) and relative (ICC) consistency, the questionnaire showed good reproducibility. VELO scores did not significantly differ after one year, neither when performing separate analyses for the intervention (speech therapy) and the non-intervention group. Correlations indicated higher HRQoL, as perceived by the parents, with increasing age. The reverse was the case for the report. Cronbach's α showed excellent internal consistency for both reports.
Conclusions
The VELO questionnaire showed good reproducibility and internal consistency. Moreover, results reconfirmed the age effect on VELO scores. To understand the implications of the results regarding the questionnaire's responsiveness, future research should focus on the identification of factors influencing the patient's evolution in HRQoL.
http://bit.ly/2Rhmdbq
Complete Polysomnographic Parameters In Infants With Severe Laryngomalacia Prior To And After Supraglottoplasty. A Pilot Study
Publication date: Available online 26 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Cortes María Cristina, Villamor Perla, González C. de la Torre, Álvarez-Neri Hiram
Abstract
Introduction
Laryngomalacia is the most common congenital laryngeal anomaly. Because of supraglottic prolapse, laryngomalacia may be associated with obstructive sleep apnea (OSA) and sleep disturbances. The effects of OSA and sleep disorders in children include failure to thrive, cognitive and behavioral disturbances, cardiovascular compromise, and an association with sudden infant death syndrome.
Objective
To evaluate the presence of OSA and sleep disturbances in children with severe laryngomalacia through complete nocturnal polysomnography, as well as to establish the effects of supraglottoplasty in each of the polysomnographic parameters.
Results
Nine infants with severe laryngomalacia were included, all with a complete polysomnographic study prior to and after supraglottoplasty. The average age was 5.5 months. All patients presented an Apnea-Hypopnea Index (AHI) within the range of severe OSA. After supraglottoplasty, a significant reduction in AHI was found, from 34.87±20.34 to 9.44±5.28 after surgery (p: 0.022). Additionally, sleep efficiency had a significant increase, from 21.4% to 56.29% of total sleep time (p: 0.0013). All patients presented a significant decrease in obstructive apnea episodes (p <0.0001), as well as in hypopnea episodes (p: 0.0154). The mean and minimum peripheral oxygen saturation (SpO2) had a significant increase after supraglottoplasty from 88.2% to 94.09% (p: 0.0002), and from 81.01% to 89.33% (p <0.0001), respectively.
Conclusion
Polysomnography (PSG) may provide better surgical sustenance in infants with severe laryngomalacia and OSA, as well as, serving as a monitoring tool of success. However, the surgical decision should not be reduced to polysomnographic results, and a good history and examination remain as the fundamental criteria.
http://bit.ly/2WnR7D1
Simulation-based education to improve emergency management skills in caregivers of tracheostomy patients
Publication date: Available online 25 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Kara Prickett, Anita Deshpande, Heather Paschal, Dawn Simon, Kiran B. Hebbar
Abstract
Introduction
Children with tracheostomies are medically complex and may be discharged with limited and variably trained home nursing support. When faced with emergencies at home, caregivers must often take the lead role in management, and many lack experience with troubleshooting these emergencies prior to initial discharge.
Methods
A high-fidelity simulation-based tracheostomy education program was designed using a programmable mannequin (Gaumard HAL S3004 one-year-old pediatric simulator). At the conclusion of our standard education program, caregivers completed three simulation scenarios: desaturation, mucus plugging, and dislodgement. A trained simulation facilitator graded performance. A self-assessment tool was used to analyze comfort with emergency management at the beginning of training, before and after simulation. Caregivers rated confidence using a 10 cm visual analog scale. All participants completed a post-simulation debriefing session.
Results
39 caregivers completed all three scenarios and returned pre- and post-simulation self-assessments. Mean scores from the caregiver self-assessments increased for all three scenarios, with mean increases of 9.0 mm for desaturation, 16 mm for mucus plugging, and 10 mm for decannulation. Two patterns of responses emerged: caregivers with progressive increase in confidence through training, and caregivers who initially rated confidence highly, and had confidence decrease as the complexity of true emergency management became apparent. All participants found the simulations to be realistic and helpful.
Discussion
High-fidelity simulation training allows for realistic exposure to trach-related emergencies. Many caregivers overestimate their ability to handle emergencies and gain important insight through simulation.
Implications for Practice
Identification of skills and knowledge gaps prior to discharge allows for targeted re-education in emergency management.
http://bit.ly/2RebXkd
An update of spectrum and frequency of GJB2 mutations causing hearing loss in the south of Iran: A literature review
Publication date: Available online 25 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Mahbobeh koohiyan, Amirhossein Ahmadi, Farideh koohian, Shahrzad Aghaei, Beheshteh Amiri, Morteza Hashemzadeh-Chaleshtori
Abstract
Objective
Mutations in the GJB2 gene are a major cause of autosomal recessive non-syndromic HL (ARNSHL) in many populations. Previous studies have estimated the average frequency of GJB2 mutations to be between 16-18% in Iran, but would vary among different ethnic groups. Here, we have taken together and reviewed results from our three previous publications and data from search other published mutation reports to provide a comprehensive collection of data for GJB2 mutations and HL in the south of Iran.
Methods
In all, 447 unrelated families were included and analyzed for the prevalence and type of the GJB2 gene mutations.
Results
Totally, the frequency of GJB2 mutations was found to be 11.5% in the southern provinces studied which is significantly lower than that identified in Northern populations of Iran, and also a southwest to southeast Iranian gradient in the frequency of GJB2 mutations is suggested.
Conclusions
This study highlights the importance of establishing prevalence, based on the local population for screening and diagnostic programs of live births in Iran.
http://bit.ly/2WiS2UZ
Audiometric Findings in Children with Unilateral Enlarged Vestibular Aqueduct
Publication date: Available online 25 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Robert J. Macielak, Jameson K. Mattingly, Ursula M. Findlen, Aaron C. Moberly, Prashant S. Malhotra, Oliver F. Adunka
Abstract
Objective
To evaluate the prevalence of bilateral hearing loss in children with unilateral enlarged vestibular aqueduct (EVA) at a single institution.
Methods
A retrospective case review was performed at a tertiary care pediatric referral center involving children with radiologic findings of unilateral EVA and normal labyrinthine anatomy of the contralateral ear diagnosed via CT and/or MRI. The main outcome measure of interest is the number of patients with unilateral EVA who were diagnosed with bilateral hearing loss.
Results
Sixty-one pediatric patients were identified. The mean audiometric follow-up was 48.2 months (0-150). Three (4.9%) patients with unilateral EVA were noted to have bilateral hearing loss, and this rate was not significantly different (p=1.0) from the rate reported in a comparison group of patients with contralateral hearing loss (6.0%) without an EVA. The pure-tone average (defined as the average dB HL at 500, 1000, 2000, and 4000 Hz) in the group with bilateral hearing loss was 31.3 dB HL in the better hearing ear and 79.6 dB HL in the worse hearing ear, with the difference being statistically significant (p=0.02). In the unilateral EVA patients without contralateral hearing loss (n=56, 91.8%), the PTA was 9.4 dB HL in the better hearing ear and 51.9 dB HL in the worse hearing ear, with the difference being statistically significant (p<0.001). Two patients (3.3%) with unilateral EVA were found to have hearing within normal limits bilaterally. The EVA was ipsilateral to the worse hearing ear in all cases.
Conclusion
The prevalence of bilateral hearing loss in children with unilateral EVA appears to be low. Specifically, it may be no different than the rate of contralateral hearing loss in children with unilateral hearing loss without an EVA. The present report is somewhat different than the previously described prevalence in the literature. This difference could be related to the imaging type and diagnostic criteria used, the patients included, the source of the identified patents, and the overall population of patients studied.
http://bit.ly/2ReleIZ
Are pediatricians and otolaryngologists well prepared to identify early signs of vertical facial growth?
Publication date: Available online 25 January 2019
Source: International Journal of Pediatric Otorhinolaryngology
Author(s): Christian Calvo-Henríquez, Silvia Martins-Neves, Ana Faraldo-García, Alberto Ruano-Ravina, Sofía Rocha, Miguel Mayo-Yáñez, Gabriel Martinez-Capoccioni
Abstract
BACKGROUND
The prevalence of vertical facial growth is very high in the developed world. Most authors agree that mouth breathing is its main cause. Even though care is mainly conducted by odontologists, the professionals who first see these patients are pediatricians and otolaryngologists. The objective of this study is to analyze the ability of pediatricians and otolaryngologists to identify early signs of vertical facial growth among children.
METHODS
60 participant aged 4.1-13.7 years were analyzed subjectively by 9 otolaryngologists, 9 pediatricians and two specialists in dentofacial orthopedics. They were also assessed objectively with cephalometric analysis.
RESULTS
Otolaryngologists showed 34.78% sensitivity, 92.86% specificity and 48.33% efficiency. Pediatricians showed 13.04% sensitivity, 100% specificity and 33.33% efficiency. Using a linear regression model compared against the objective measurements we found a weak positive correlation both for otolaryngologists and pediatricians.
CONCLUSION
The sensitivity was very low for both groups. We believe it is of paramount importance to increase the awareness and the ability of otolaryngologists and pediatricians to recognize signs of disrupt facial growth.
http://bit.ly/2Wt5hCO
Self‐organizing hair peg‐like structures from dissociated skin progenitor cells: New insights for human hair follicle organoid engineering and Turing patterning in an asymmetric morphogenetic field
Abstract
Human skin progenitor cells will form new hair follicles, although at a low efficiency, when injected into nude mouse skin. To better study and improve upon this regenerative process, we developed an in vitro system to analyze the morphogenetic cell behavior in detail and modulate physical‐chemical parameters to more effectively generate hair primordia. In this three‐dimensional culture, dissociated human neonatal foreskin keratinocytes self‐assembled into a planar epidermal layer while fetal scalp dermal cells coalesced into stripes, then large clusters, and finally small clusters resembling dermal condensations. At sites of dermal clustering, subjacent epidermal cells protruded to form hair peg‐like structures, molecularly resembling hair pegs within the sequence of follicular development. The hair peg‐like structures emerged in a coordinated, formative wave, moving from periphery to center, suggesting that the droplet culture constitutes a microcosm with an asymmetric morphogenetic field. In vivo, hair follicle populations also form in a progressive wave, implying the summation of local periodic patterning events with an asymmetric global influence. To further understand this global patterning process, we developed a mathematical simulation using Turing activator‐inhibitor principles in an asymmetric morphogenetic field. Together, our culture system provides a suitable platform to 1) analyze the self‐assembly behavior of hair progenitor cells into periodically arranged hair primordia, and 2) identify parameters that impact the formation of hair primordia in an asymmetric morphogenetic field. This understanding will enhance our future ability to successfully engineer human hair follicle organoids.
This article is protected by copyright. All rights reserved.
http://bit.ly/2FMVT81
The role of unilateral nasal inspiratory peak flow in nasal obstruction‐ a study of seventy patients undergoing septorhinoplasty surgery
Abstract
Nasal Inspiratory Peak Flow (NIPF) poorly correlates with subjective patient reported outcomes (PROMs) following functional septorhinoplasty.
The aim of this study is to determine whether unilateral NIPF correlates with PROMs.
The study demonstrates significant improvement in objective and subjective measurements post septorhinoplasty surgery in seventy patients.
There was weak correlation between improvements in bilateral NIPF when compared with changes in the NOSE score.
Whilst unilateral NIPF does not correlate with subjective outcome scores, it is still a useful measure in assessing nasal patency and in patient education.
This article is protected by copyright. All rights reserved.
http://bit.ly/2DzijY3
Association study of cell cycle proteins and human papillomavirus in laryngeal cancer in Chinese Population
Abstract
Objective
To investigate the role of human papillomavirus (HPV) in laryngeal squamous cell carcinoma (LSCC) and analyze the relationship between HPV and the expression of cell cycle‐related proteins.
Design
The study consisted of LSCC between 2005 and 2011 in Tongren Hospital. Clinical data such as age, sex, smoking/ alcohol consumption and TNM stage were collected. HPV DNA and cell cycle‐related proteins were assessed in terms of clinical features.
Setting
Single center study.
Participants
A total of 332 LSCC patients were included in the study.
Main outcome measures
The presence of genotype‐specific HPV DNA was evaluated using PCR‐RDB in formalin‐fixed paraffin‐embedded tissues. All samples were also evaluated for p16INK4A, p21WAF1/CIP1, P53, Cyclin D1, and Ki67 immunohistochemical staining by tissue microarray.
Results
HPV DNA was detected in 45 of 332 (13.55%) patients with LSCC, with HPV‐16 being the predominant genotype. The presence of HPV‐16 DNA was significantly associated with basaloid squamous cell carcinoma and cystic lymph node metastasis (P < 0.05). Of the 332 patients 36 (10.84%) were scored as p16INK4A positivity, and they were more likely to be female (P < 0.05). Cyclin D1‐positivity and p21WAF1/CIP1‐positivity were observed in 60.24% (200/332)and 40.66%(135/332), respectively. In 114 cases (34.33%), LSCCs had moderate‐ to ‐strong p53 accumulation, which was correlated with TNM stage (P < 0.05). HPV‐16 DNA was correlated with p16INK4A, and manifested a higher Ki‐67 labeling index and p21WAF1/CIP1 expression than HPV‐16‐negative tumors (P < 0.05). No relationship was observed between Cyclin D1or P53 expression and HPV‐16 infection (P > 0.05).
Conclusion
HPV DNA was detected in 13.55% patients with LSCC, with HPV‐16 being the predominant genotype and it was correlated with p16INK4A, and manifested a higher Ki‐67 labeling index and p21WAF1/CIP1 expression than HPV‐16‐negative tumors.
This article is protected by copyright. All rights reserved.
http://bit.ly/2UiMSqa
The infraorbital artery: From descriptive anatomy to mucosal perforator flap design
Abstract
Background
The terminal and perforating branches of the infraorbital artery (IOA) are poorly described. Its anatomical situation and mucosal component could provide an interesting donor site for mucosal reconstruction. The aims of the following study were to establish an anatomical description and to assess the feasibility of mucosal perforator flaps for eyelid and nasal reconstruction.
Methods
Twenty‐three fresh cadaver hemifaces were studied in order to perform an IOA anatomical classification by recording the artery's characteristics, its course, number, type, and diameter of terminal branches. We also examined the feasibility of local flaps for facial reconstruction.
Results
We highlighted five different types of courses. All cadavers had at least one superior vestibular branch with a caliber of ≥0.4 mm. A pedicled flap arising from the vestibular branch was raised in all dissections.
Conclusion
The vestibular perforator flap based on the IOA seems to be a reliable flap in reconstruction of mucosal defects.
http://bit.ly/2TftjiB
Tumor implantation following percutaneous endoscopic gastrostomy insertion for head and neck and oesophageal cancer: Review of the literature
Abstract
Background
Because of publication bias, there is uncertainty about the true incidence of tumor seeding or implantation in patients with head and neck or oesophageal cancer undergoing percutaneous endoscopic gastrostomy (PEG) insertion.
Methods
In order to obtain a more reliable estimate of risk, a systematic review was undertaken. Randomized or non‐randomized studies and case reports were identified by electronic searching. A risk of bias assessment was carried out for each study.
Results
Ninety‐eight cases from 74 published case reports and 1 unpublished case were identified. Synchronous distant metastases were present in 37%. Analysis of case series (6192 patients) considered to carry a moderate risk of bias suggests an incidence of seeding after PEG insertion of 0.32%. Studies carrying a lower risk of bias indicate a risk of seeding closer to 1 in 2000.
Conclusion
The true risk of seeding after PEG insertion is probably less than 1 in 1000.
http://bit.ly/2B5fVqh
Detection of laryngeal carcinoma in the U.S. elderly population with gastroesophageal reflux disease
Abstract
Background
An association is suggested between gastroesophageal reflux disease (GERD) or laryngopharyngeal reflux (LPR) and malignancy of the larynx in elderly patients in the United States. Early detection with flexible fiberoptic laryngoscopy (FFL) or CT remains poorly defined.
Methods
The Surveillance, Epidemiology, and End Results (SEER)‐Medicare linked database was queried from 2003 to 2011.A case‐cohort design evaluated patients aged 66 and older with a diagnosis of GERD and/or LPR for the occurrence of FFL or CT within 6 months of the exposure diagnosis.
Results
Of a total 156 426 Medicare beneficiaries, the relative risk of early cancer diagnosis with FFL was 14.61(95% confidence interval [CI], 13.59‐15.70), corresponding to a number needed to detect (NND) a case of cancer of 13(95% CI, 13‐14). The relative risk of an early cancer diagnosis with CT was 31.83 (95% CI, 29.57‐34.26), with a NND of 5 (95% CI, 5‐5).
Conclusions
Early FFL and CT are associated with a higher likelihood of laryngeal cancer diagnosis in elderly individuals with a diagnosis of reflux. Screening trials are necessary to establish this relationship.
http://bit.ly/2ROBeqz
Using the new INTRABEAM mobile intraoperative radiotherapy system during surgery for pancreatic cancer: a case report
Pancreatic cancer is one of the most common fatal malignancies and has a poor prognosis. Surgical treatment is the most important treatment method, but there is a low rate of radical excision; moreover, the po...
http://bit.ly/2CMw2cl
When follow‐up is telling you the truth
Abstract
Over the years, other modified versions of the traditional Mohs surgery have been applied including the perimeter technique (PT). In detail, in our study, the surgical specimen is labeled for margin counting and a further layer including the lesions' bottom is analysed.
This article is protected by copyright. All rights reserved.
http://bit.ly/2WmbrnW