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目的：探究心功能指标测定对冠心病患者的临床应用价值。方法：2010年1月-2012年1月收治冠心病患者30例作为观察组，选同期收治存在胸痛症状的非冠心病患者30例作为对照组。比较两组患者心肺功能指标。结果：与对照组相比，观察组右心室Tei指数、舒张期右心室内径(RVED)及右心室前壁厚度(RAWT)等指标存在显著差异，具有统计学意义(P＜0.05)。两组左室射血分数(LVEF)、呼吸频率(RR)、心率(HR)等指标对比，差异无统计学意义(P＞0.05)。结论：因心肌缺血导致的左室功能不全患者在不同程度运动量引发的异常反应中，心肺运动试验能够提供一致且量化的指标，具有重要临床指导价值。“,”Objective:To explore the clinical significance of determining cardiac function index of patients with coronary heart disease.Methods:30 cases with coronary heart disease from January 2010 to January 2012 were as the observation group,and 30 cases of no coronary heart disease with chest pain as the control group.Cardiopulmonary function index of the two groups were compared.Results:Comparing with the control group,right ventricular Tei index,right ventricular diastolic diameter(RVED),right ventricular anterior wall thickness (RAWT) and other indicators of two groups had significant difference(P0.05).Conclusion:Cardiopulmonary exercise test can provide consistent and quantitative indicators in left ventricular dysfunction patients abnormal reaction because of myocardial ischemia after different levels exercise.