Singular neurectomy (posterior ampullary nere transsection) and posterior semicircular canal occlusion are the 2 specific techniques used in intractable BPP surgery.
The mechanisms of anti-vertigo and anti-vomiting effects of phenergan is unkown.It is assumed that the effects are based on the anti-coline effect of phenergan.
Symptoms such as nausea,vomiting,dizziness and dystaxia were common in this group of patients,and headache and nuchal rigidity were found in 51.6% and 32.3% patients respectively.
The re pre sentative signal symptoms of the apoplexia were heaviness sensation in the limbs and fatigue, dizziness, numbness, headache, slurring of speech and blurring of vision.