QT离散度对老年肺心病病人预后的影响

Prognostic effect of QT dispersion on senile cor pulmonale

目的 观察QT离散度对老年肺心病病人的预后影响。方法 随机抽取老年慢性肺心病病人高危组和低危组各 30例 ,于入院第 1天行同步 1 2导联心电图检查 ,测量其QT离散度 ,并与体检健康老年组60例做对照 ,进行统计学分析。结果 QT离散度老年肺心病组 (高危组 +低危组 )较对照组增大 ,高危组较低危组增大 ,低危组较对照组增大 ,均P <0 0 5 ;而高危组较对照组显著增大 (P <0 0 1 )。结论 老年肺心病病情越重其QT离散度增大越明显 ,两者呈正相关 ,QT离散度越大 。

Objective To observe the prognosis effect of QT dispersion on senile cor pulmonale.Methods Sixty cases were randomly selected from the senile chronic cor pulmonale and divided into high risk group(30 cases) and low risk group(30 cases).Synchronous 12 lead ECG was examed when they were in hospital first day.Their QT dispersion was measured and compared with 60 cases of healthy normal senile control group.Results In 60 cases QT dispersion of senile cor pulmonale increased significantly(P<0.05) in comparison with healthy normal senile control group,QT dispersion in high risk group increased(P<0.05) in comparison with low risk group,QT dispersion in low risk group in comparson with health normal senile control group increaed(P<0.05).QT dispersion of high risk group compared with health normal senile control group increased significantly(P<0.01).Conclusion The more serious the severity of senile cor pulmonale is,the more obvious QT dispersion increases,which show positive correlation.