心脏变时功能不全对诊断冠心病的作用  

The diagnostic value of chronotropic incompetence for coronary artery disease

作　　者：张宏宇[1] 何志翔[1] 肖洪万[1] 

机构地区：[1]沈阳医学院奉天医院电诊科,110024

出　　处：《中国实用医药》2008年第14期26-27,共2页China Practical Medicine

摘　　要：目的探讨平板运动试验中心脏变时功能不全对诊断冠心病的作用。方法选择疑诊冠心病患者51例,行平板运动试验和冠状动脉造影检查,得出冠心病组、非冠心病组。计算运动后1 min心率恢复值及心率储备率并进行比较,利用此两种变时性指标作为诊断冠心病的标准,与传统的ST段标准比较。结果冠心病组的患者运动后1 min心率恢复值及心率储备率均低于非冠心病组。以此两种变时功能不全的指标作为诊断冠心病的标准,与传统的ST段标准相比,其敏感性差异无统计学意义,特异性明显提高。结论运动试验中心脏变时功能不全可作为诊断冠心病的指标。Objective To investigate the value of the chronotropic incompetence（CI） for diagnosing coronary artery disease（CAD） during treadmill exercise test（TET）.Methods 51 patients suspected for CAD underwent examinations of both TET and coronary angiography（CAG）.The patients were divided into CAD group and non-coronary artery disease（NCAD） group based on the results of CAG.Heart rate recovery at 1 minute after exercise（△HR1）and the ratio of heart rate reserve（HRR） between two groups were calculated and compared.The Sensitivity and specificity between the two indexs of the chronotropic incompetence and ST segment criteria to diagnose CAD were compared.Results Heart rate recovery at 1 minute after exercise and the ratio of heart rate reserve of CAD group were lower than that of NCAD group.2 diagnostic methods had the same sensitivity but the former had highter specificity.Conclusion The chronotropic incompetence can be one index of diagnosing CAD during TET.

关 键 词：平板运动试验 变时功能不全 冠心病 

分 类 号：R541.4[医药卫生—心血管疾病] R654.4[医药卫生—内科学]