摘要
目的 探讨心电图最大ＳＴ／ＨＲ斜率对老年人冠心病的诊断价值。 方法 采用踏车运动试验测定３０例老年冠心病患者和３０ 例健康老年对照者的最大ＳＴ／ＨＲ斜率及ＳＴ段压低值。 结果 老年冠心病组的心电图最大ＳＴ／ＨＲ斜率值明显高于对照组〔分别为（３．０±１．３）及（０．９±０．９）μＶ·ｂｐ－ １·ｍ ｉｎ－ １，Ｐ＜ ０．０１〕，最大ＳＴ／ＨＲ斜率法诊断老年人冠心病的敏感性和特异性高于ＳＴ段压低法（分别为９０．０％ 、８６．６％ 和６０．０％ 、７３．３％ ，均为Ｐ＜ ０．０５）。随冠状动脉病变数目增多其最大ＳＴ／ＨＲ斜率值呈增大趋势。 结论 最大ＳＴ／ＨＲ斜率法对老年人冠心病的临床诊断有较高的敏感性和特异性，优于单纯ＳＴ段压低法。
Objective To investigate the clinical diagnostic value of the maximal ST segment/heart rate slope (ST/HR slope) in elderly patients with coronary heart disease (CHD). Methods The maximal ST/HR slope and ST segment depression in 30 elderly patients with CHD and 30 elderly healthy controls were investigated by using exercise test. Results The maximal ST/HR slope in the elderly patients with CHD was significantly higher than that in the control group 〔(3 0±1 3) vs (0 9±0 9) μV·bp -1 ·m -1 , P <0 01〕. The maximal ST/HR slope was more sensitive and specific than the ST depressioning criteria (90 0%,86 6% vs 60 0%,73 3%). As the number of the diseased arteriosclerostic coronary artery vessels increased, so did the maximal ST/HR slope. Conclusions The maximal ST/HR slope has higher sensitivity and specificity in the diagnosis of the elderly CHD. It is better than ST segment depression and it has also predictive value on the number of the diseased arteriosclerostic coronary artery vessels.
出处
《中华老年医学杂志》
CAS
CSCD
北大核心
1999年第6期340-342,共3页
Chinese Journal of Geriatrics
