食管心房调搏S1-R段下移对诊断冠心病价值

摘要

Objective To explore the diagnosis value of S1-R segment depression caused by transesophageal atrial pacing for coronary heart disease.Method Used 12-lead ECG to measure 86 cases with non-cardiac disease,59 cases with coronary heart disease,and 38 cases with other heart diseases.Then cardiac stimulator was used to pace the heart with the HR of 20 beats/min higher than themselves; the time of continuous stimulation was 30 seconds; the Ⅱ -lead ECG of last 8 seconds was recorded and analyzed.Results The rate of S1-R segment depression in heart diseases was higher than non-cardiac disease; which was positively correlated with coronary heart disease.Conclusion The S1-R segment depression was 0.2 mV more than themselves.That can be used as an important diagnostic index for coronary heart disease.%目的 探讨经食管心脏调搏S1-R段的下移改变对冠心病的诊断价值.方法 对86例非心脏病患者、59例冠心病患者和38例其他心脏病患者,先描记常规12导联心电图,继而采用心脏程控刺激仪用比受检者自身快20次/min的心率起搏心脏,连续刺激30 s,并用Ⅱ导联记录最后8s的心电图供分析.结果 心脏病患者St-R段下移率明显高于非心脏病患者,冠心病患者S1-R段下移率显著高于其他心脏病患者.结论 经食管心脏调搏S1-R段自身对照下移≥0.2 mV时,可做为诊断冠心病的重要指标.