Essential Voice Tremor: A Study of Botulinum Toxin Treatment and Injection Augmentation
Status:
Completed
Trial end date:
2016-09-29
Target enrollment:
Participant gender:
Summary
Botulinum toxin is the common treatment of choice for patients with Essential Voice Tremor
(EVT), but results are not universally beneficial to all patients. Inconsistent results are
noted in the literature and are consistent with the PI's clinical experience. Injection
augmentation, a well-established treatment for glottic insufficiency, which is a prominent
factor in the clinical presentation of Essential Voice Tremor (EVT), has not been studied. By
treating patients at separate times with botulinum toxin and injection augmentation in an
unblinded prospective crossover treatment study, we can assess functional outcomes of these
two treatments with the population of patients with Essential Voice Tremor (EVT).