血管迷走性晕厥儿童直立倾斜试验结果的相关因素分析

目的 总结影响儿童直立倾斜试验（HUTT）的危险因素,为血管迷走性晕厥的诊疗提供理论参考.方法 340例晕厥头痛患儿,进行HUTT检查,包括基础倾斜试验及舌下含化硝酸甘油试验,并根据结果分为HUTT阳性患儿和HUTT阴性患儿,分析两者的临床信息,进行多元Logistic回归,分析危险因素.结果 HUTT阳性患儿晕厥次数（2.3±1.1）次,显著高于HUTT阴性患儿的（0.7±0.2）次,出现视物模糊、胸闷的比率显著高于HUTT阴性患儿（84/186,48/186比34/154,23/154）,单因素分析结果显示,年龄＞12岁、性别女、视物模糊、有晕厥病史、有晕厥家族史、晕厥次数多、胸闷乏力为HUTT结果阳性的相关因素,多元Logistic回归分析结果显示,年龄＞12岁、性别女、有晕厥病史、有晕厥家族史为HUTT阳性的独立危险因素（β值分别为0.744,1.126,1.312,0.514,95％CI分别为1.132～5.968,1.985～5.040,1.366～9.677,1.683～6.532）.结论 年龄、性别、有晕厥家族史、有晕厥病史对于HUTT结果的预测具有重要的意义.

Related factors of head up tilt test in children with vasovagal syncope

Objective To summarize the risk factors of head up tilt test （HUTT） in children with vasovagal syncope,and provide theoretical reference for the diagnosis of vasovagal syncope.Methods The total of 340 children with headache and syncope were included in the study,all the cases received HUTT,including basic tilt table test and sublingual nitroglycerin test.And they were divided into HUTT positive group and HUTT negative group according to the results.The clinical information of two groups was analyzed by multivariate Logistic regression to summarize risk factors.Results The frequency of syncope in HUTT positive group was 2.3 ± 1.1,significantly higher than that in HUTT negative group （0.7 ±0.2）,chest tightness and blurred vision ratios were significandy higher than those in HUTT negative group （84/186,48/186 vs.34/154,23/154）.Single factor analysis showed,older than 12 years old,female,blurred vision,with history and genetic history of syncope,numerous of syncope,chest tightness,fatigue were related factors as positive results for HUTT.Multivariate Logistic regression analysis showed,older than 12 years old,female,with history and genetic history of syncope were independent risk factors of positive HUTF.β was 0.744,1.126,1.312,0.514 respectively,95％ CI was 1.132-5.968,1.985-5.040,1.366-9.677,1.683-6.532 respectively.Conclusion Age,gender,family history,history of syncope have important significance to predict HUTT results.