Further observations on posterior ampullary nerve transection for positional vertigo

Area of Science:

• Otolaryngology
• Neurosurgery
• Vestibular Disorders

Background:

• Benign paroxysmal positional vertigo (BPPV) is a common vestibular disorder.
• The posterior semicircular canal is implicated as the primary source of BPPV.

Purpose of the Study:

• To evaluate the efficacy of posterior ampullary nerve transection for treating BPPV.
• To assess long-term outcomes and potential complications of the surgical procedure.

Main Methods:

• Middle ear approach under local anesthesia for posterior ampullary nerve transection.
• Surgery performed on the undermost ear in the provocative test position.
• Evaluation of ten patients with BPPV undergoing the procedure.

Main Results:

• Complete relief from positional vertigo in all ten patients post-surgery.
• Sustained vertigo relief in four out of five patients with long-term follow-up (pre-1974).
• One patient experienced moderate sensorineural hearing loss (post-1975).

Conclusions:

• Posterior ampullary nerve transection is an effective treatment for BPPV.
• The posterior semicircular canal's sense organ is largely responsible for BPPV.
• Surgical intervention offers sustained relief, with hearing loss as a potential complication.