Multiple Audiometric Analysis in the Screening of Vestibular Schwannoma.

Introduction Asymmetric sensorineural hearing loss is the main early symptom of retrocochlear lesions, hence its importance in screening for vestibular schwannomas. Currently, there is no consensus regarding its definition. The objective was to identify the audiometric pattern that would serve as a predictor for vestibular schwannoma in patients with asymmetric hearing loss.

Superior Semicircular Canal Dehiscence Syndrome - Diagnosis and Surgical Management.

 Superior semicircular canal dehiscence syndrome was described by Minor et al in 1998. It is a troublesome syndrome that results in vertigo and oscillopsia induced by loud sounds or changes in the pressure of the external auditory canal or middle ear. Patients may present with autophony, hyperacusis, pulsatile tinnitus and hearing loss.

Labyrinthectomy and Vestibular Neurectomy for Intractable Vertiginous Symptoms.

 Labyrinthectomy and vestibular neurectomy are considered the surgical procedures with the highest possibility of controlling medically untreatable incapacitating vertigo. Ironically, after 100 years of the introduction of both transmastoid labyrinthectomy and vestibular neurectomy, the choice of which procedure to use rests primarily on the evaluation of the hearing and of the surgical morbidity.  To review surgical labyrinthectomy and vestibular neurectomy for the treatment of incapacitating vestibular disorders.

Endoscopic endonasal transclival resection of a ventral pontine cavernous malformation: technical case report.

Brainstem cavernous malformations are challenging due to the critical anatomy and potential surgical risks. Anterolateral, lateral, and dorsal surgical approaches provide limited ventral exposure of the brainstem. The authors present a case of a midline ventral pontine cavernous malformation resected through an endoscopic endonasal transclival approach based on minimal brainstem transection, negligible cranial nerve manipulation, and a straightforward trajectory.

Neuro-otologic manifestations of tuberculosis. "The great imitator".

Objective: To demonstrate the different neuro-otologic clinical presentations of tuberculosis.

Study Design: Retrospective clinical analysis.

Result: 83.

Intraoperative monitoring of the abducens nerve in extended endonasal endoscopic approach: a pilot study technical report.

Background: To determine the reliability and usefulness of intraoperative monitoring of the abducens nerve during extended endonasal endoscopic skull base tumor resection.

Methods: We performed abducens nerve intraoperative monitoring in 8 patients with giant clival lesions recording with needle electrodes sutured directly into the lateral rectus muscles of the eye to evaluate spontaneous electromyographic activity and triggered responses following stimulation of the abducens nerves.

Results: A total of 16 abducens nerves were successfully recorded during endoscopic endonasal skull base surgeries.