摘要：

目的 探讨 Barbecue法治疗向地性眼震型水平半规管良性阵发性位置性眩晕过程中耳石发生半规管转换的正确诊断与治疗方法。方法与结果 选择 2010 年 1-12 月共 66 例符合向地性眼震型水平半规管良性阵发性位置性眩晕诊断的病例，施以 Barbecue 法复位治疗，治疗过程中 6 例（9.09%）转变为后半规管耳石、10 例（15.15%）转变为背地性眼震；50 例（75.76%）未发生半规管转换，3 例（4.55%）治疗后 30 d 随访时复发。治疗后 30 d 随访时，治疗总有效率达 95.45%（63/66），无一例发生严重不良反应。结论 向地性眼震型水平半规管良性阵发性位置性眩晕手法复位过程中可能发生耳石半规管转换，应密切关注眼震特点，务求尽早发现并再次行手法复位。 

关键词: 眩晕, 耳石膜, 半规管, 眼震, 病理性

Abstract:

Objective To explore the correct diagnosis and treatment of canal conversion of otolith in the treatment of geotropic nystagmus horizontal semicircular canal benign paroxysmal positional vertigo (BPPV) by Barbecue maneuver. Methods and Results There were 66 patients with geotropic nystagmus horizontal semicircular canal BPPV treated by Barbecue maneuver from January to December 2010 in Guangdong General Hospital. Among 66 cases, 6 cases (9.09%) were transformed to posterior semicircular canal BPPV and 10 cases (15.15% ) were transformed to apogeotropic nystagmus. Among 50 cases (75.76%) who did not show transition, 3 cases (4.55%) were found relapsed on the 30th day of follow-up. The total effective rate was 95.45% (63/66). No one suffered from severe adverse events. Conclusions During the maneuver treatment of geotropic nystagmus horizontal semicircular canal BPPV, canal conversion of otolith could happen. Therefore, characteristics of nystagmus should be concerned, and exact diagnosis and repeated maneuver treatment is the key to success. 

Key words: Vertigo, Otolithic membrane, Semicircular canals, Nystagmus, pathologic