【摘要】 目的 :探讨倾斜试验和硝酸异山梨醇酯舌下含化倾斜试验在不明原因晕厥诊断中的价值。方法 :6 8例不明原因晕厥者随机均分为直立倾斜试验 (TTT)组及硝酸异山梨醇酯舌下含化倾斜试验 (ID +BTTT)组。结果 :TTT组总阳性率为 73 5 % ,ID +BTTT组为 6 0 6 5 % ,两组阳性率无统计学差异 (χ2 =1 2 6 8,P >0 0 5 ) ,特异性亦无显著性差异 (92 9%与 93 3% ,P >0 0 5 )。ID +BTTT组诱发晕厥的时程明显短于TTT组 (2 8 4± 5 1min比 42 1± 6 8min ,P <0 0 1)。结论 :ID +BTTT具有较高的敏感性与特异性 ,可用于血管迷走性晕厥的诊断 ,可作为TTT检查方法的补充。更多还原

【Abstract】 Objective:To evaluate sublingual isosorbide dinitrate before tilt test in the diagnosis of unexplained syncope.Method:Sixty eight patients with unexplained syncope were divided into two groups,upright tilt table test(TTT)group and sublingual isosorbide dinirate before tilt table test(ID+BTTT)group.Results:There were no significant difference in the rate of positive between the ID+BTTT group (60 65%) and the TTT group (73 5%) in diagnosis of unexplained syncope.And there were no significant difference in the specificity between the ID+BTTT group (93 3%)and the TTT group(92 9%).The total time induced syncope in the ID+BTTT group was shorter than that of TTT group(28 4±5 1min vs 42 1±6 8min,P<0 01).Conclusion:Sublingual isosorbide dinirate before TTT is a simple practical test in the diagnosis of unexplained syncope.It is a complemental method of TTT.更多还原