直立倾斜试验对血管迷走性晕厥诊断的价值

Diagnostic value and fatalness of tilt table test in vasovagal syncope

目的 探讨直立倾斜试验对血管迷走性晕厥的诊断价值。方法 40例不明原因晕厥者 ,进行直立倾斜试验 (tilttabletest,TTT) ,试验全程行心电、血压监护。结果 TTT诱发晕厥 16例 ,阳性率 40 %(16/ 40 ) ,其中基础倾斜试验诱发晕厥 3例 ,阳性率 7 5 % (3 / 40 ) ,发生严重反应 5例 ,占诱发晕厥者的 3 1 2 %(5 / 16)。结论 TTT对血管迷走性晕厥具有较好的诊断价值。虽为无创检查 ,但严重反应并不少见 ,应于试验前严格筛选病人 ,试验中及时对症处理 。

Objective To evaluate the diagnostic value and fatalness of tilt table test(TTT) in vasovagal syncope.Methods 40 patients with syncope were tested with TTT, multi-lead ECG and blood pressure were monitored during TTT.Results Sixteen of 40 patients were defined as positive, the positive ratio is 40%, in which 3 patients got syncope during baseline tilt table test(BTTT),the positive radio is 7.5%(3/40) 13 patients got syncope during isoproterent tilt table test(Iso TTT).5 patients got serious responsiveness,the ratio is 31.2%(5/16).Conclusion TTT is a sound method to diagnose vasovagal syncope. Although non-invasive,serious responsiveness was not rare during TTT. Carefully screenning patients before test, managing patients in time during test and improving the quality of tilt table will be helpful to reduce the serious responsiveness.