论文部分内容阅读
目的 探讨胸导联心电图R -ST -T变化与心尖肥厚型心肌病(AHCM )的关系。方法 对经超声心动图和 /或左心室造影确诊的 42例AHCM病人 (AHCM组 )及 3 5例非AHCM病人 (对照组 )的心电图进行对比分析 ,分析胸导联心电图R -ST -T变化 (R波增高呈RV4>RV5>RV3 ,T波倒置呈TV4>TV5>TV3 ,ST段下移 ,且均无动态演变 )对判断AHCM的临床价值。结果 AHCM组心电图出现异常42例 (10 0 % )。胸导联心电图R -ST -T变化在AHCM的出现率为 78.6% ,显著高于对照组的 8.6% (P <0 .0 1)。胸导联心电图R -ST -T变化预测AHCM的敏感度为 78.6%、特异度为91.4%。 5例AHCM病人胸导联心电图R -ST -T变化早于超声心动图及左心室造影改变。结论 胸导联心电图R -ST -T变化是诊断AHCM的敏感、特异的预测指标 ,心电图对AHCM的诊断具有早期预测意义。
Objective To investigate the relationship between chest electrocardiogram (ECG) R-ST-T and apical hypertrophic cardiomyopathy (AHCM). Methods 42 cases of AHCM patients (AHCM group) and 35 cases of non-AHCM patients (control group) diagnosed by echocardiography and / or left ventricular angiography were compared and analyzed electrocardiogram R-ST-T changes of chest lead electrocardiogram (R wave increased RV4> RV5> RV3, T wave inverted TV4> TV5> TV3, ST segment down, and no dynamic evolution) to determine the clinical value of AHCM. Results AHCM ECG abnormalities in 42 cases (100%). The incidence of thoracic electrocardiographic R-ST-T change in AHCM was 78.6%, significantly higher than that in the control group (8.6%, P <0.01). The sensitivity of AHCM was 78.6% and the specificity was 91.4%. 5 cases of AHCM chest lead electrocardiogram R-ST-T changes earlier than echocardiography and left ventricular angiography change. Conclusions The change of chest lead electrocardiogram R -ST-T is a sensitive and specific predictor of AHCM diagnosis. ECG has an early predictive value for the diagnosis of AHCM.