Vestibular Migraine: Clinical Aspects and Pathophysiology.

VM is a common yet debilitating migraine variant that has taken many monikers in the past. As a relatively new diagnostic entity, public and provider awareness of this disorder can be improved. Symptoms include vertigo episodes in addition to photophobia, phonophobia, nausea, and headache.

How Good Are We in Evaluating a Bedside Head Impulse Test?

Objectives: Clinicians performing a horizontal head impulse test (HIT) are looking for a corrective saccade. The detection of such saccades is a challenge. The aim of this study is to assess an expert's likelihood of detecting corrective saccades in subjects with vestibular hypofunction.

Flat Panel Computed Tomography in the Diagnosis of Superior Semicircular Canal Dehiscence Syndrome.

Hypothesis: Flat panel computed tomography (FPCT) provides more accurate measurements of dimensions for superior semicircular canal dehiscence (SCD) than multislice CT (MSCT).

Background: SCD syndrome occurs when a bony defect of the superior semicircular canal causes vestibular and auditory symptoms. MSCT can overestimate the size of the canal defect, with possible over-diagnosis of SCD and suboptimal selection of surgical approach.

Safe Intraoperative Neurophysiologic Monitoring During Posterior Spinal Fusion in a Patient With Cochlear Implants.

Objective: Cochlear implants are generally considered a contraindication for any procedure requiring electrical stimulation near the implant. We present a case of a patient undergoing intraoperative transcranial electrical motor-evoked potential monitoring with a cochlear implant without adverse outcomes.

Patient: A 12-year-old girl with a history of VACTERL presented with worsening congenital kyphosis and bilateral severe-to-profound hearing loss.

Patients with vestibular loss, tullio phenomenon, and pressure-induced nystagmus: vestibular atelectasis?

Objective: To propose an etiology for a syndrome of bilateral vestibular hypofunction and sound and/or pressure-evoked eye movements with normal hearing thresholds.

Design: Retrospective case series.

Setting: Tertiary care referral center.

Multislice computed tomography in the diagnosis of superior canal dehiscence: how much error, and how to minimize it?

Hypothesis: Multi-slice computed tomography (MSCT) overestimates the size of superior semicircular canal dehiscences (SSCDs) and also can misinterpret thin bone over the superior semicircular canal as dehiscent. A threshold of the radiodensity of the bone over the superior semicircular canal may exist that could optimize prediction of an actual SSCD.

Background: The gold standard for diagnosis of SSCD is MSCT, but there is a higher prevalence of SSCD based on MSCT compared with histologic studies.