EMG-guided salpingopharyngeus Botox injection for palatal myoclonus
Wan, T.K.; Chen, J.T.; Wang, P.C.
B-Ent 9(1): 67-69
2013
ISSN/ISBN: 1781-782X PMID: 23641594 Document Number: 664374
Palatal myoclonus (PM) is a rare neurological disorder characterized by involuntary movements of the soft palate musculature causing objective clicking tinnitus. Two forms are recognized as distinct clinical entities, with poorly understood pathogenesis: essential and symptomatic PM. The intrusive nature of the tinnitus prompts patients to seek medical advice. Conventional medical treatments with anxiolytics, antidepressants, and anticonvulsants have limited efficacy in these patients. In this case report, electromyography-guided injection of botulinum toxin type A (Botox; Allergan, Irvine, CA, USA) to the involved salpingopharyngeus and tensor veli palatini yielded satisfactory results with minimal temporary adverse effects.