The clinical characteristics and factors with residual symptoms after successful canalith repositioning maneuvers in patients with benign paroxysmal positional vertigo
JI Li,PENG Xin,SUN Qing,RAO Rendong,and SHAN Xizheng
Institute of Dizziness, General Hospital of Chinese People’s Armed Police Force, Beijing 100039, China
Abstract：Objective To study the clinical characteristics and factors associated with residual symptoms in patients with benign paroxysmal positional vertigo (BPPV) after successful canalith repositioning maneuvers. Methods 37 patients with P-BPPV, 28 patients with H-BPPV, and 12 patients with M-BPPV totaled 77 after successful repositioning maneuvers(SRM-Ⅳ)for benign paroxysmal positional vertigo were recruited in the prospective study.The clinical characteristics and factors associated with residual symptoms were studied.Results Of the 77 patients,37 patients (48.1%) reported residual symptoms after successful repositioning maneuver, including dizziness 27% (10/37), unsteady 16.2% (6/37), neck malaise 21.7% (8/37), two combined residual symptoms 32.4% (12/37), three combined residual symptoms 2.7% (1/37). The number of repositioning maneuvers were associated with an increased risk of residual symptoms.No association was observed between residual symptoms and poor sleeping and tiredness before illness,involved semicircular canal, gender, age, duration of vertigo.Conclusions Residual symptoms after successful repositioning can be observed in the patients with BPPV.The cardinal residual symptoms are dizziness,unsteadiness and neck malaise. The number of repositioning maneuvers are associated with an increased risk of residual symptoms.
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2016, Vol. 27 
