TITLE:
Subtemporal Extradural Approach for Dehiscence of the Superior Semicircular Canal: Surgical Technique and Results in Three Consecutive Patients
AUTHORS:
Sarah Hendrickx, Abdulhamid Ciçek, Jeroen Cortier, Olivier Van Damme, Jeroen Van Lerbeirghe, Pieterjan Leupe, Glen Forton, Dimitri Vanhauwaert
KEYWORDS:
Superior Semicircular Canal Dehiscence, Subtemporal Craniotomy, Minor Syndrome
JOURNAL NAME:
Open Journal of Modern Neurosurgery,
Vol.12 No.1,
January
7,
2022
ABSTRACT: We describe three patients with severe disabling symptoms of unilateral dehiscence of the superior semicircular canal (DSSC) who had surgical treatment. Each patient underwent a unilateral subtemporal extradural approach with resurfacing the DCCS. In all 3 patients, all symptoms were completely resolved and remained symptom free on the long term. There were no postoperative complications. Only one patient experienced a temporary CSF hypotension syndrome and some dizziness. The pseudo-conductive hearing loss improved or resolved in all patients. Surgical treatment should be considered in patients with severe, disabling DSSC symptoms. Surgical resurfacing of the DSSC is a safe and rewarding surgical technique. The long term success rate regarding the elimination of the pseudo-conductive hearing loss and resolution of vestibular symptoms outweigh the potential surgical risks of this technique in these patients.