Autonomic dysfunction as a possible cause of residual dizziness after successful treatment in benign paroxysmal positional vertigo.

摘要: Abstract Objective To investigate whether residual dizziness after successful treatment in patients with benign paroxysmal positional vertigo (BPPV) was associated autonomic dysfunction. Methods Fifty-eight consecutive BPPV who had canal repositioning procedures (CRPs) and showed no nystagmus or at the next follow-up visit were enrolled divided into two groups without dizziness. We performed a standardized function test. Results Of 58 patients, 25 (43%) complained of CRPs, which postural lightheadedness when righting from sitting, short-lasting nonspecific that occurred during head movement walking common complaints. Orthostatic hypotension (OH) 11 (19%). Incidence OH significantly higher than those (40% 3%, p =0.000). Compared to dizziness, larger falls systolic BP valsalva maneuver head-up tilt However, cardiovagal parasympathetic not different between Conclusion In BPPV, may be sympathoneural Significance This investigation could useful understanding mechanism BPPV.