Αρχειοθήκη ιστολογίου

Κυριακή 8 Απριλίου 2018

A Randomized Comparison Between Interscalene and Small-Volume Supraclavicular Blocks for Arthroscopic Shoulder Surgery

Background and Objectives This randomized trial compared ultrasound (US)–guided interscalene block (ISB) and small-volume supraclavicular block (SCB) for arthroscopic shoulder surgery. We hypothesized that SCB would provide equivalent analgesia to ISB 30 minutes after surgery without the risk of hemidiaphragmatic paralysis (HDP). Methods All patients received an US-guided intermediate cervical plexus block. In the ISB group, US-guided ISB was performed with 20 mL of levobupivacaine 0.5% and epinephrine 5 μg/mL. In the SCB group, US-guided SCB was carried out using 20 mL of the same local anesthetic agent: 3 and 17 mL were deposited at the "corner pocket" (ie, intersection of the first rib and subclavian artery) and posterolateral to the brachial plexus, respectively. A blinded investigator assessed ISBs and SCBs every 5 minutes until 30 minutes using a composite scale that encompassed the sensory function of the supraclavicular nerves, the sensorimotor function of the axillary nerve, and the motor function of the suprascapular nerve. We considered the blocks complete if, at 30 minutes, a composite score equal or superior to 6 points (out of 8 points) was achieved. Thus, onset time was defined as the time required to reach a minimal composite score of 6 points. The blinded investigator also assessed the presence of HDP at 30 minutes with US. Subsequently, all patients underwent general anesthesia. Postoperatively, a blinded investigator recorded pain scores at rest at 0.5, 1, 2, 3, 6, 12, and 24 hours. Patient satisfaction at 24 hours, consumption of intraoperative and postoperative narcotics, and opioid-related adverse effects were also tabulated. Results Both groups displayed equivalent postoperative pain scores at 0.5, 1, 2, 3, 6, 12, and 24 hours. Interscalene blocks resulted in a higher incidence of HDP (95% vs 9%; P

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Effective Dose of Intravenous Dexmedetomidine to Prolong the Analgesic Duration of Interscalene Brachial Plexus Block: A Single-Center, Prospective, Double-Blind, Randomized Controlled Trial

Background and Objectives Intravenous (IV) dexmedetomidine (DEX) is reported to prolong the analgesic duration after single-shot interscalene brachial plexus block (ISBPB). However, the effective analgesic dose of IV DEX remains undetermined. Therefore, we aimed to elucidate the clinically relevant dose of IV DEX to prolong the analgesic duration of ISBPB. Methods Seventy-two patients scheduled for arthroscopic shoulder surgery received ISBPB with 15 mL of 0.5% ropivacaine with 1:200,000 epinephrine and were randomly assigned to 1 of 4 groups (n = 18, each): (1) IV normal saline (control), (2) IV DEX 0.5 μg/kg (DEX 0.5), (3) IV DEX 1.0 μg/kg (DEX 1.0), and (4) IV DEX 2.0 μg/kg (DEX 2.0). The primary outcome was time to the first pain at surgical site. Results The median (interquartile range) duration of analgesia was significantly prolonged for the DEX 2.0 (874 minutes [727–1153 minutes]) compared with 656 minutes (590–751 minutes), 703 minutes (644–761 minutes), and 696 minutes (615–814 minutes) for the control, DEX 0.5 and DEX 1.0 groups, respectively (P = 0.001, P = 0.008, and P = 0.003, respectively). Postoperative cumulative IV morphine equivalent consumption at 24 hours was significantly lower in the DEX 2.0 compared with the control, DEX 0.5 and DEX 1.0 groups (P

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Perineural Versus Systemic Dexamethasone in Front-Foot Surgery Under Ankle Block: A Randomized Double-Blind Study

Background and Objectives Among the different adjuvants, dexamethasone is one of the most accepted to prolong the effect of local anesthetics. This study aims to determine the superiority of perineural over systemic dexamethasone administration after a single-shot ankle block in metatarsal osteotomy. Methods We performed a prospective, double-blind, randomized study. A total of 100 patients presenting for metatarsal osteotomy with an ankle block were randomized into 2 groups: 30 mL ropivacaine 0.375% + perineural dexamethasone 4 mg (1 mL) + 2.5 mL of systemic saline solution (PNDex group, n = 50) and 30 mL ropivacaine 0.375% + 1 mL of perineural saline solution + intravenous dexamethasone 10 mg (2.5 mL) (IVDex group, n = 50). The primary end point was the duration of analgesia defined as the time between the performance of the ankle block and the first administration of rescue analgesia with tramadol. Results Time period to first rescue analgesia with tramadol was similar in the IVDex group and the PNDex group. Data are expressed as mean (SD) or median (range). Duration of analgesia was 23.2 (9.5) hours in the IVDex group and 19 (8.2) hours in the PNDex group (P = 0.4). Consumption of tramadol during the first 48 hours was 0 mg (0–150 mg) in the IVDex group versus 0 mg (0–250 mg) in the PNDex group (P = 0.59). Four (8%) and 12 (24%) patients reported nausea or vomiting in the IVDex group and the PNDex group, respectively (P = 0.03). Conclusions In front-foot surgery, perineural and systemic administrations of dexamethasone are equivalent for postoperative pain relief when used as an adjuvant to ropivacaine ankle block. Clinical Trial Registration This study was registered at ClinicalTrials.gov, identifier NCT02904538. Address correspondence to: Philippe Marty, MD, Department of Anesthesia, Clinique Médipôle Garonne, 31036, Toulouse, France (e-mail: philippemarty@hotmail.com). Accepted for publication November 20, 2017. The authors declare no conflict of interest. Support was provided solely from institutional and department sources from Department of Anesthesiology, Clinique Médipôle Garonne, Toulouse, France. This work should be attributed to the Department of Anesthesiology, Clinique Médipôle Garonne, Toulouse, France. Authors' contributions: O.R., B.Basset, C.V., and M.C.M. performed all regional anesthesia. P.M. and F.F. wrote the manuscript. C.M., M.M., and M.C. participated in the design of the study. B.Bataille performed the statistical analysis. A.D. participated in its design and coordination and helped to draft the manuscript. All authors read and approved the final manuscript. Copyright © 2018 by American Society of Regional Anesthesia and Pain Medicine.

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Practice Management: Successfully Guiding Your Group into the Future

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Publication date: Available online 7 April 2018
Source:Anesthesiology Clinics
Author(s): Lee A. Fleisher




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Septate Uterus in a Girl with Rubinstein–Taybi Syndrome

Rubinstein–Taybi syndrome is an extremely rare plurimalformative condition that can affect any organ. However, reports regarding gynecological problems are unusual. We report the first case of a septate uterus in an adolescent with this syndrome, in agreement with the American Society for Reproductive Medicine (ASRM) and the Congenital Uterine Malformations by Expert (CUME) criteria for uterine septum. Additional studies are required to determine whether there is an increased frequency of müllerian duct anomalies with the condition. Our report extends the data on the clinical phenotype associated with Rubinstein–Taybi syndrome.

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Σάββατο 7 Απριλίου 2018

The Superficial Musculoaponeurotic System and Other Considerations in Rejuvenation of the Lower Face and Neck

This article addresses several facelift challenges involving anatomic conditions, including platysma banding, endomorphic facial habitus, and midface hypoplasia. In addition, patient counseling and conveying realistic expectations about limitations of facelift alone, with and without adjunctive procedures, are presented. In addition, a few technical modifications of the facelift procedure contributing to more uniform success and longevity are discussed.

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Forthcoming Issues

Rhinoplasty for the Asian Nose

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