211例良性阵发性位置性眩晕临床分析

Clinical analysis of 211 patients with benign paroxysmal positional vertigo in different ethnic

目的：探讨不同类型良性阵发性位置性眩晕（BPPV）的临床特征。方法：回顾性分析211例BPPV患者的临床特征，并对不同类型的BPPV作比较。结果：BPPV以女性多见，50～60岁为发病高峰段，潜伏期为（1．60±1．19）s，46例（21．8％）无明显潜伏期；眩晕发作持续时间中位数为10S，持续时间〈60s者177例（83．8％），超过60s者34例（16．2％）；后半规管受累189例（89．6％），水平半规管受累21例（10％），后半规管加水平半规管受累1例（0．4％）。后半规管BPPV、水平半规管BPPV潜伏期分别为（1．89±1．33）s、（O．92±1．04）s，差异有统计学意义（P〈0．01）；汉族患者发病明显多于其他民族；而在性别构成、病程、眩晕持续时间上均无明显差异。结论：BPPV以后半规管受累常见，与水平半规管相比，后半规管BPPV潜伏期更长。

Objective：To explore the clinical features and repositioning maneuver effects of benign paroxysmal positional vertigo（BPPV）. Method：The clinical features of 211 patients with BPPV were analyzed retrospectively. Different types of BPPV were compared. Result： BPPV was more common in female and the peak period of onset was between the ages of 50 and 60. The average latency of vertigo attack was（1. 60 ± 1. 19）s and 46 patients （21.8%）had no obvious latency. The median duration of vertigo attack was 10 s, with less than 60 s in 177 pa- tients（83.8 %）and between 60--180 s in 34 patients（16.2 %）. The latency of vertigo attack of posterior semicir- cular canal-BPPV（1.89 ± 1.33） s was longer than that of horizontal semicircular canal-BPPV（0.92 ±1.04） s （P〈 0.01） . But there were no differences in the gender, the course of disease and the duration of vertigo attack. In ad- dition Han ethnic patients were more significant than other ethnic ones. The patients with posterior semicircular canal-cupulolithiasis were younger than those with posterior semicircular canal-canalithiasis. The duration of verti- go attack of posterior semicircular canal-cupulolithiasis was longer than that of posterior semicircular canal-canali- thiasis（P〈0.05）. Conclusion：The posterior semicircular canal is more involved in BPPV. The latency of vertigo at- tack of posterior semicircular canal-BPPV is longer than that of horizontal semicircular canal-BPPV.