良性陣發性位置性眩暈(benign paroxysmal positional vertigo)為一臨床常見的疾病。目前對此病的病因有壺腹耳石沉積理論(cupulolithiasis)和管耳石沉積理論(canalithiasis)兩派說法。多數患此症的病人在一段時間會自行痊癒,只有少數頑固性的良性陣發性位置性眩暈的患者需接受手術治療。台中榮總耳鼻喉科在民國85年8月經歷1名良性陣發性位置性眩暈困擾10多年的女性病人。病人在保守性治療失敗後接受了後半規管閉塞手術(posterior semicircular canal occlusion)。術後病患症狀緩解且無聽力上的損失,追蹤至今一直狀況良好。
The benign paroxysmal positional vertigo (BPPV) is a common clinical diagnosis. Two theories (cupulolithiasis and canalithiasis) are accepted pathophysiologic mechanism of BPPV. Clinically, BPPV is self-limiting in most cases and surgical treatment is not required except in a small number of patients whose symptoms fail to resolve and proved incapacitating. We experienced a female patient who suffered from intractable BPPV for over 10 years. Due to no response to conservative treatment, she received an operation for occlusion of posterior semicircular canal in August, 1996. The patient remains free of BPPV till now with no change in hearing.