Observation on nystagmus characteristics and curative effect of patients with light cupulopathy
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摘要: 目的 观察轻嵴帽病患者的眼震特征，并对其疗效进行观察。方法 变向性位置性眼震(DCPN)患者26例，应用全自动耳石复位仪分别对患者进行Supine roll试验、眼震消失平面测试、俯卧-仰卧试验。所有患者均给予Barbecue耳石复位治疗，对比治疗后即时、短期、远期疗效。结果 26例患者均能在一侧找到眼震消失平面，角度范围在15~45°，平均(26.34±8.78)°，8例(30.8%)患者可见自发性眼震，患者俯卧位时眼震指向患侧，仰卧位时眼震指向健侧；Supine roll试验眼震强的一侧为患侧占73.1%，眼震弱的一侧为患侧占26.9%。所有患者在进行Barbecu法复位后，即时、1周、1个月后的痊愈率分别为0、42.3%、88.5%。即时、1周、1个月后的痊愈率比较差异有统计学意义(P < 0.01)。结论 持续性向地性DCPN患者的眼震表现符合轻嵴帽假说，可根据眼震消失平面测试、俯卧-仰卧试验对病变侧别进行判定，部分患者不能通过Supine roll试验眼震强弱来判定病变侧别。轻嵴帽病患者行复位无效，但该病具有自愈性。Abstract: Objective To describe the characteristics of nystagmus in patients with Light Cupulopathy and to investigate its therapeutic effect.Method The Supine roll test in our hospital's otology clinic showed persistent DCPN in 26 patients, who received Supine roll test, null-point position test, and prone-supine test. All patients were treated with barbecue maneuver. The immediate, short-term and long-term effects of treatment were investigated.Result Null-point position on one side was present in 26 patients. The angles ranged from 15-45°, with an average of (26.34±8.78)°. Spontaneous nystagmus was observed in 30.8% (8/26) patients. The nystagmus was directed to the affected side in prone position and to the healthy side in supine position. Seventy-three percent of the patients had strong nystagmus and 26.9% had weak nystagmus in the Supine roll test. All patients received Barbecue maneuver, and the recovery rates were 0, 42.3% and 88.5% immediately, 1 week and 1 month after treatment respectively. There was a statistical difference in the recovery rate among immediate, one week and one month later (P < 0.01).Conclusion The nystagmus performance of patients with persistent DCPN conforms to the light cupula hypothesis. The lesion side can be determined according to the null-point position and prone-supine test. The lesion side cannot be determined by the intensity of nystagmus in the Supine roll test in some cases. Repositioning maneuver is ineffective in treating light cupulopathy, but the disease is self-limited.
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Key words:
- vertigo /
- light cupulopathy /
- null-point position
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表 1 26例患者复位后即时、1周、1个月主观疗效对比
例(%) 时间 痊愈 好转 无效 复位后即时 0(0)2)3) 0(0)2)3) 26(100.0)2)3) 复位后1周 11(42.3)1)3) 13(50.0)1)3) 2(7.7)1)3) 复位后1个月 23(88.5)1)2) 3(11.5)1)2) 0(0)1)2) 与复位后即时比较，1)P < 0.01；与复位后1周比较，2)P < 0.01；与复位后1个月比较，3)P < 0.01。 
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