心电图T波峰末间期及QT间期离散程度与冠心病严重程度相关性分析及其诊断价值

Correlation of the end period of T wave and QT dispersion degree in electrocardiogram with severity of coronary artery disease and its diagnostic value

目的分析12导联心电图中T波峰末间期(Tp-Te)及QT间期离散程度(QTd)与冠心病严重程度的相关性及对冠心病的诊断价值.方法回顾性分析50例健康体检者(健康组)及50例冠心病患者(冠心病组)的临床病例资料,对比两组Tp-Te、QTd差异,分析冠心病组Tp-Te、QTd与冠心病严重程度的相关性及对冠心病的诊断价值.结果冠心病组Tp-Te及QTd均高于健康组,差异有统计学意义(P<0.05).冠心病组Tp-Te、QTd与冠状动脉狭窄程度均呈显著的正向直线相关性,差异有统计学意义(P<0.05).在冠心病的诊断中,Tp-Te及QTd均具有较高的灵敏性、特异性及准确性,且经分析,Tp-Te及QTd对冠心病均具有显著的诊断价值(P<0.05).结论Tp-Te及QTd与冠心病严重程度存在显著的正向相关性,且对于冠心病具有显著的诊断价值.

Objective To analyze the 12-lead electrocardiogram T wave period(Tp-Te)and at the end of the period between QT dispersion degree(QTd)and the correlation between the severity of coronary heart disease(CHD)and the value of the diagnosis of coronary heart disease.Methods A retrospective analysis was conducted in 50 cases of healthy physical examination and 50 patients with coronary heart disease,the clinical data were compared between the two groups,including Tp-Te,QTd difference,correlation between the severity of coronary heart disease(CHD),and value in the diagnosis of coronary heart disease.Results Tp-Te and QTd in CHD group were higher than those in healthy group,with statistically significant difference(P<0.05).In CHD group,Tp-Te and QTd were positively correlated with degree of coronary artery stenosis(P<0.05).In the diagnosis of coronary heart disease,Tp-Te and QTd had a higher sensitivity,specificity and accuracy;the analysis of Tp-Te and QTd values played a significant role in the diagnosis of coronary heart disease(P<0.05).Conclusion Tp-Te and QTd are significantly correlated with the severity of coronary artery disease,and therefore these have significant values in the diagnosis of coronary heart disease.