报告发作性位置性眩晕50例。经系统神经耳科学检查,证实为周围性前庭性疾患引起者(良性发作性位置性眩晕)38例,疑为中枢疾患引起者6例,原因不明者6例。讨论了周围性和中枢性位置性眩晕的特点和位置性及变位性眼震检查对此两型位置性眩晕的诊断意义, Report of 50 cases of paroxysmal positional vertigo. The system of neurosurgical examination, confirmed peripheral peripheral vestibular disorders caused by (benign paroxysmal positional vertigo) 38 cases, suspected central disease caused by 6 cases, 6 cases of unknown cause. Discuss the characteristics and location of peripheral and central positional vertigo and the diagnostic significance of deformative nystagmus on these two types of positional vertigo,