摘要
观察40例平板运动试验心电图 Q—Tc、R 波振幅及 ST 参数的变化情况。并结合冠状动脉造影结果进行对比分析后发现;△Q—Tc 为诊断冠心病的较好指标(敏感性86.4%、特异性66.7%);△R指标单独用于诊断冠心病的价值不大(敏感性27.3%、特异性77.8%);△Q—Tc 和△R指标如非结合 AST 指标综合应用,可提高运动负荷试验诊断冠心病的准确性。
The study discussed post-exercise changes of Q—Tc interval.R-wave amplitude and ST segment in 40 coronary angiography patients,The results showed:during diagnosing coronary heart diseased ΔQ—Tc was the best of three indexes.The sensitivity and specific in the diagnosis increased obvio- usly when the three indexeswere all considered.
