左室舒张功能减退患者QT间期离散度变化  

Changes of QT interval dispersity of the patients with left ventricular diastolic function decrease

作　　者：朱萍 邓长柏 

机构地区：[1]广东省顺德市桂洲医院B超室,5283055

出　　处：《实用心脑肺血管病杂志》2001年第3期134-135,共2页Practical Journal of Cardiac Cerebral Pneumal and Vascular Disease

摘　　要：目的　探讨左室舒张功能减退患者心电图 QT间期离散度 (简称 QTd)变化。　方法　 12 6例心脏病患者 ,年龄 32～ 76岁 ,用美国超九 - ATL(X0 16 3)彩色多谱勒诊断仪进行检查并测量其二尖瓣口、E峰和 A峰值 ,以 1<E/A<2作为舒张功能正常的参考指标 ,将其分为 E/A正常组 (对照组 )和 E/A异常组 (研究组 ) ,描记常规 12导联心电图 ,测定 QTm ax、QTmin及 QTd。　结果　研究组 (n=70 )QTd为 6 7.30 m s± 12 .6 3m s,对照组 (n=5 6 ) QTd为 49.30 m s± 13.70 m s,两组比较有显著性差异 ,P<0 .0 1。　结论　左室舒张功能减退患者 QTd增大。Objective To investigate the changes of ECG QT interval dispersions of the patients with left ventricular diastolic function decrease. Methods 126 patients with cardiac diseases(32～76 years old) were examined with American ultrasonic-9-ATL Doppler to test their Mitral valve orifice E and A velocity,accordingg to 1<E/A<2(normal value),the patients were divided into E/A normal group(controt group)and E/A abnormal group(study group),and then respectively recorded 12 leads ECG,and tested QTmax,QTmin,QTd. Results QTd in study group(n=70)was 67.30ms±12.63ms,control group(n=56)was 49.30ms±13.70ms,P<0.01. Conclusion QTd in patients with left ventricular function decrease was increased.

关 键 词：心脏功能 多谱勒超声心动图描记术 心电描记术 QT间离散度 

分 类 号：R540.41[医药卫生—心血管疾病]