High-voltage pulsed galvanic stimulation (HGVS) has been shown to be of prophylactic benefit, to reduce the incidence of attacks. The patient is usually placed in the left lateral decubitus position and a sterile probe is inserted into the anus. The negative electrode is used and the stimulator is set with a pulse frequency of 80 to 120 cycles per second. The voltage (intensity) is started at 0, progressively raised to a threshold of patient discomfort, and then is decreased to a level that the patient finds comfortable. As the patient's tolerance increases, the voltage can be gradually increased to 250 to 350 Volts. Each treatment session usually lasts between 15 and 60 minutes. Several studies have reported short-term success rates that ranged from 65 to 91%. Low dose diazepam of around 2mg or less, or similar muscle-relaxant, taken orally at bedtime has been suggested as preventative, but its benefits are limited.
Proctalgia fugax
Barodontalgia
Polio-like syndrome
Dysbarism
Amaurosis fugax
Hemifacial spasm
Lonomia
Bobble-head doll syndrome