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报告37例不明原因晕厥的病人(晕厥组)和10O例无晕厥病史的健康正常人(对照组)倾斜试验(TTT)结果。结果显示晕厥组基础倾斜试验(BTTT)阳性诱发率为18.4%(7/37),对照组无1例阳性;多阶段异丙肾上腺素倾斜试验晕厥组阳性率(71.4%)显著高于对照组(10%)。说叫,BTTT敏感性低,异丙肾上腺素激发大大提高倾斜试验的敏感性,假阳性率较低。TTT 不失为不明原因晕厥鉴别的一种实用方法。
Thirty-seven patients (syncope group) with unexplained syncope and 10 TTT (normal control group) tilt test (TTT) results were reported. The results showed that the positive rate of BTTT was 18.4% (7/37) in the syncope group and no positive in the control group. The positive rate of syncope in the multi-stage isoproterenol tilt test group was significantly higher than that in the control group (10%). Talking, BTTT low sensitivity, isoproterenol stimulation greatly enhance the sensitivity of tilt test, the false positive rate is low. TTT as a clear reason for syncope identification of a practical method.