Buzzing Sympathetic Nerves: A New Test to Enhance Reflex Pupil Dilation in Suspected Horner Syndrome
Creator
Rawan Omary; Randy Kardon; Chris Bockisch; Klara Landau; Konrad Weber
Affiliation
(RO) (CB) (KL) (KW) Ophthalmology Department - University Hospital Zurich, Switzerland; (RK) University of Iowa and Veteran Medical Center, Iowa City, IA; (CB) (KW) Neurology Department - University Hospital Zurich, Switzerland; (CB) ENT Department - University Hospital Zurich, Switzerland
Patients with suspected Horner syndrome and equivocal pupil dilation lag and pharmacologic testing might undergo unnecessary; MR imaging. Our purpose was to increase the diagnostic sensitivity of pupillometry by accentuating sympathetic innervation to the; iris dilator by surface electrical stimulation of the median nerve using a standard electromyography machine. We hypothesized that; any difference in sympathetic innervation to the right and left eye would be accentuated.
Date
2018-05
Language
eng
Format
video/mp4
Type
Image/MovingImage
Source
2018 North American Neuro-Ophthalmology Society Annual Meeting
