NYU Langone Health
The research team will evaluate pupillary dilation from vagal nerve stimulation of Arnold's Nerve, a branch of the vagus nerve, during routine cochlear implantation surgery.
The objective of this study is to determine if electrical stimulation of Arnold's Nerve, a branch of the vagus nerve, can result in vagal nerve response through the measurement of pupillary dilation
Inclusion Criteria: Patients undergoing cochlear implantation: * will be undergoing surgery for a cochlear implant * is over the age of 18 * is willing to participate in the study Patients undergoing vagal nerve stimulator implantation: * will be undergoing implantable vagal nerve stimulation * is over the age of 18 * is willing to participate in the study Exclusion Criteria: Patients undergoing cochlear implantation: * is under the age of 18 * has history of prior ear surgery, congenital ear malformation, or cochlear implantation * pregnant or breastfeeding patients cannot undergo the…
Electrical stimulation will be used to stimulate the Arnold's nerve and measure pupil dilation. The electrical stimulator is part of the standard facial nerve monitoring unit that we utilize in cochlear implantation and will be setup prior to surgery in standard fashion. The device allows for constant current stimulation, with stimulus range between 0-30 mA.
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