Gabapentin Relieves Vertigo of Periodic Vestibulocerebellar Ataxia: 3 Cases and Possible Mechanism.

Objective: The aim of this study was to report relief of optokinetic-triggered vertigo (OKTV) with low-dose gabapentin in three patients with periodic vestibulocerebellar ataxia [episodic ataxia type 4 (EA4); OMIM 606552].

Methods: Clinical observations and analysis of video-recorded eye movements were used before and after gabapentin.

Results: Gabapentin relieved vertigo of all three treated patients with EA4, particularly during activities that typically would induce vertiginous symptoms.

Central retinal artery occlusion during cardiac catheterization.

A massive embolus of the central retinal artery occurred during cardiac catheterization and selective coronary angiography. Anterior chamber paracentesis and coughing resulted in restoration of retinal blood flow and vision within two hours. In two other cases retinal arteriolar embolization was observed in patients who had minimal or no ocular symptoms after cardiac catheterization.

Computerized radiology of the colon: a potential screening technique.

We report here a new technique, computerized radiology of the colon. This technique consists of digital radiography of the colon combined with colon CT utilizing only air as a contrast agent. This technique is capable of detection of very small polyps.