ABSTRACT Tinnitus occurs chronically in about 10% of adults, being pulsatile tinnitus a 4% of these cases (TP). TP is characterized by being rythmic and sychronous to the heart beat. There are many described causes, but in a significant group of cases it is not possible to determine its origin. Our aim is present clinical cases of superior semicircular canal dehiscence (SSCD) as the cause of pulsatile tinnitus and its study. Clinical cases: Two patients present pulsatile tinnitus in her right ear. System causes were discarded, normal Carotid Doppler ultrasonography, Anglo CT scan and MRI without findings. In Pöschl reconstruction SSCD can be observed. Evoked myogenic potentials (VEMPs) by suspicion of SSCD Syndrome, cVEMP and oVEMP with a elevated amplitudes and lower thresholds ipsilateral response. In the cases exposed, tinnitus appears as a single symptom associated with the presence of SSCD which was confirmed with imaging studies and VEMPs. The AngioTAC allows to investigate several associated causes. The VEMPs confirm the diagnosis, with oVEMP having a greater sensitivity. The SSCD is an entity to have in my mind as a differential diagnosis of pulsatile tinnitus and, if suspected, should be explored with VEMPs.
https://ift.tt/2HyXZsr
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου