斜板试验诊断小儿血管迷走性晕厥的价值及饮水试验的防治效果  

The value of TT for diagnosing vasovagal syncope in children and the clinical efficacy of drinking-water

作　　者：黄玉娟[1] 黄敏[1] 陈秀玉[1] 王健怡[1] 杨思源[1] 

机构地区：[1]上海交通大学附属儿童医院,上海200040

出　　处：《中国实用儿科杂志》2007年第6期442-444,共3页Chinese Journal of Practical Pediatrics

摘　　要：目的探讨小儿血管迷走性晕厥(VVS)的诊断及防治方法。方法分析1999-10—2004-07上海交通大学附属儿童医院开展斜板试验(TT)(倾斜角度80°,试验时间持续30min)的状况,对不明原因晕厥组74例及正常对照组54例进行前瞻性研究,对TT阳性组加做阳转阴试验,予以饮水试验,并随访。结果基础TT在不明原因晕厥组中阳性41例,阳性率为55.4%,对照组为0(P<0.001)。阳性组表现血管抑制型21例,心脏抑制型7例,混合型13例;28/41(68.3%)例患儿经饮水后阳转阴;随访38例TT阳性患儿,总有效率86.8%。结论TT对诊断小儿血管迷走性晕厥有较高的敏感性(55.4%)和特异性(100%)。阳转阴试验为防治小儿血管迷走性晕厥提供了理论和实验依据,饮水试验是一种简单有效可行的防治措施。Objective To study the value of Tilt-table test （TT） for diagnosing vasovagal syncope and the clinical efficacy of drinking-water. Methods In prospective study,74 patients with unexplained syncope and 54 healthy children received the TT to 80° for 30 minutes. Positive-to-negative test was performed in the positive group,who eventually were treated with drinking-water,and were followed up. Results The classic TT was positive in 55.4% of patients with unexplained syncope,but none in control subjects. Three patterns of positive response to TT were observed ：vasodepressor pattern in 21/41 ,cardioinhibitory pattern in7/41 ,and mixed pattern in 13/41. Among the positive group,28/41turned negative after drinking water. Follow-up was available to 38 patients, the total effective rate being 86. 8%. Conclusion TT has higher sensibility and specificity to the diagnosis of vasovagal syncope. Positive-to-negative test provides rational and experimental evidence. Drinking-water is a simple and effective measure for the prevention of vasovagal syncope.

关 键 词：晕厥 血管迷走性晕厥 斜板试验 儿童 

分 类 号：R72[医药卫生—儿科]