胎儿心电图联合超声心动图检测对胎儿期前收缩判别的意义

Effect of Fetal Electrocardiogram Combined with Echocardiography for the Improvemet of the Di- agnostic Accuracy of Pre Fetal Contractions

【目的】联合应用胎儿心电图与超声心动图检测，以提高胎儿期前收缩的诊断率。【方法】通过产前胎心听诊和（或）胎心率监护筛查出胎儿心律失常的病例，将胎儿一心电图（FECG）及胎儿超声心动图（FUCG）诊断为胎儿期前收缩者纳入本研究，评价两种检测方法的一致性及其对胎儿期前收缩诊断的灵敏度和特异度。【结果】FECG发现期前收缩占胎儿心律失常36.8％，FUCG发现期前收缩占胎儿心律失常35．5％，两种检测方法的一致性为0．972；FECG联合FUCG判断室上性期前收缩的灵敏度和特异度分别为95．95％、89．17％，判断室性期前收缩灵敏度和特异度分别为93．55％、96．50％。【结论】FECG与FUCG判定胎儿期前收缩有很好的一致性；对期前收缩性质的判断，采用FECG联合FUCG检测可弥补其相互不足，提高胎儿期前收缩判断准确度。

[Objective]To study the effect of fetal electrocardiogram combined with echocardiography for the improvemet of the diagnostic accuracy of pre fetal contractions.[Methods] Those prenatally diagnozed as Pre fetal contraction by fetal electrocardiogram （FECG） and fetal echocardiography （FUCG） were selected as the research subjects, the consistency of the two detection methods and their sensitivity and specificity for the diagnosis of pre fetal contractions were evaluated.[Results] FECG findings showed that pre systole accounted for 36.8% of fetal arrhythmias, and FUCG showed premature contraction accounted for 35.5 % of fetal arrhythmias, and the consisten- cy of the two methods was 0.972% The sensitivity and specificity of FECG combined with FUCG in the diagnosis of supraventricular premature contractions were 95.95 % and 89.17 % respectively, The sensitivity and specificity of ventricular premature contraction were 93.55 % and 96.50%, respectively.[Conclusion]There was good agreement between FECG and FUCG in determining pre fetal contractions; To judge the nature of pre contraction, FECG combined with FUCG test can make up for their deficiency so as to improve the accuracy of fetal pre systolic judg- ment.