A<unk>  is a type of nerve block involving the severing or removal of a nerve. This surgery is performed in rare cases of severe chronic pain where no other treatments have been successful, and for other conditions such as vertigo, involuntary twitching and excessive blushing or sweating. A brief "rehearsal" local anesthetic nerve block is usually performed before the actual<unk> , to determine efficacy and detect side effects. The patient is typically under general anesthetic during the<unk> , which is performed by a neurosurgeon or plastic surgeon.
Neurectomy
Sympathectomy
Microvascular decompression
Presacral neurectomy
Neurotomy
Commissurotomy
Cranioplasty
Retrobulbar block