Kaga K, Nagai T, Takamori A, Marsh R R
Laryngoscope. 1985 Mar;95(3):321-5. doi: 10.1288/00005537-198503000-00017.
For assessing comatose patients, the combination of auditory short, middle, and long latency evoked potentials (auditory brain stem response [ABR], middle latency component [MLC], and slow vertex response [SVR] ) is more comprehensive than auditory brain stem response (ABR) only or ABR with slow vertex response (SVR). Fifty-four acutely comatose patients were studied. Thirty-four of the patients had severe head injury and others had coma of varied etiology. Within two months after admission, 25 patients survived, while 29 patients died. Auditory evoked response measurements were conducted usually within 48 to 72 hours after admission. For patients with normal SVR, MLC, and ABR, there was 100% survival; with absent SVR but normal MLC and ABR, survival was 91%; with absent SVR and MLC and normal ABR, it was 60%; with abnormal ABR, it was 10%; no patient survived whose ABR was absent. It is emphasized that a normal MLC is clearly a predictor of survival of comatose patients, but a normal ABR is not always a reliable indicator of survival.
对于评估昏迷患者，听觉短潜伏期、中潜伏期和长潜伏期诱发电位（听觉脑干反应[ABR]、中潜伏期成分[MLC]和慢波顶点反应[SVR]）的联合应用比仅使用听觉脑干反应（ABR）或ABR与慢波顶点反应（SVR）的联合应用更为全面。对54例急性昏迷患者进行了研究。其中34例患者有严重头部损伤，其他患者昏迷病因各异。入院后两个月内，25例患者存活，29例患者死亡。听觉诱发电位测量通常在入院后48至72小时内进行。SVR、MLC和ABR均正常的患者，存活率为100%；SVR缺失但MLC和ABR正常的患者，存活率为91%；SVR和MLC缺失但ABR正常的患者，存活率为60%；ABR异常的患者，存活率为10%；ABR缺失的患者无一存活。需要强调的是，MLC正常显然是昏迷患者存活的一个预测指标，但ABR正常并不总是存活的可靠指标。
