冠心病患者心功能与肺动脉压、心电指标的关系

摘要

Objective: To investigate ibc relationsbip between the heart functior, and pulmonary arterial pressure (PAP),electrocardiogram(ECG)indices in patients with coronary head disease (CHD). Methods: According to NYHA classification,113 hospitalized patients were classified into A group ( Ⅰ and Ⅱ ), B group (Ⅲ) and C group (Ⅳ). The values of PAP, P dispersion (Pd), QT interval(QT), QT dispersion (QTd), T peak-tend interval(Tp-e) and corrected QT (QTc), corrected QTd (QTcd),corrected Tp-e (Tp-e/(√)RR) were compared between three groups. Results: There were significant differences in PAP, Pd,QT, QTc, QTd, QTcd, Tp-e and Tp-e/(√)RR between three groups (P ＜ 0.05). The values of PAP, Pd, QT, QTc, QTd, QTcd,Tp-e and Tp-e/(√)RR were gradually increased with the deterioration of heart function in B group vs A group, C group vs B group. Tbe differences were significant (P ＜ 0.05). Conclusion: The pulmonary arterial pressure and all of the ECG indices,including Pd, QT, QTc, QTd, QTcd, Tp-e and Tp-e/(√)RR were enhanced with the deterioration of heart function in CHD patients. Patients with heart failure are more likely to suffer from atrial fibrillation and malignant cardiac arrhythmia.%目的:研究冠心病患者的心功能和肺动脉压(PAP)、心电指标之间的关系.方法:选择2009年10月-2010年5月在我院住院的冠心病患者113例,按照NYHA分级分为A组(Ⅰ、Ⅱ级)、B组(Ⅲ级)、C组(Ⅳ级),比较3组之间的PAP、P波离散度(Pd)、QT间期(QT)、QT离散度(QTd)、T波峰-末间期(Tp-e)和经纠正后的QT(QTc)、QTd(QTcd)、Tp-e(Tp-e/√RR)之间的差异.结果:3组之间的PAP、Pd、QT、QTc、QTd、QTcd、Tp-e、Tp-e/√RR比较差异有统计学意义(P＜0.05),并且随着心功能的恶化(B组对A组,C组对B组),PAP逐渐升高,Pd、QT、QTc、QTd、QTcd、Tp-e、Tp-e/√RR逐渐增加,差异具有统计学意义(P＜0.05).结论:冠心病患者随着心功能的恶化,PAP有升高的趋势,Pd、QT、QTc、QTd、QTcd、Tp-e、Tp-e,√RR有增加的趋势,发生房颤和恶性心律失常的风险增加.