三磷酸腺苷诊断房室结双径路和隐匿性旁道的临床研究
ACADEMIC JOURNAL OF SECOND MILITARY MEDICAL UNIVERSITY（2002）
Abstract
目的:探讨三磷酸腺苷(adenosine triphosphate, ATP)在窦性心律时诊断房室结双径路(AVNDP)和隐匿性旁道(AP)的应用价值.方法:选择64例拟行射频消融术(RFCA)治疗阵发性室上性心动过速(PSVT)的患者,术前在窦律下,以初始剂量0.05 mg·kg-1及每次增加0.05 mg·kg-1的量多次快速静脉注射ATP,观察到预定的终点,并行心内电生理检查及RFCA后,复行同剂量ATP试验.结果:窦律ATP试验诊断AVNDP的灵敏度为71.4%,特异度为89.7%,诊断隐匿性AP的灵敏度为69%,特异度为94.3%.结论:窦律ATP试验对PSVT患者诊断AVNDP和隐匿性AP有较高的准确度,并可用于RFCA终点判定.
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