论文部分内容阅读
本研究通过经皮冠状动脉成形术（PTCA）由球囊阻塞冠状动脉引起心肌缺血，同时记录体表心电图（S—ECG）及通过冠脉内导丝记录球囊阻塞远端的心外膜心电图—冠脉内心电图（IC—ECG），观察心肌缺血时的心电图改变。共研究98例病人120支血管。结果：1．S—ECG对心肌缺血的检出率为66．7％（80／120），而IC—ECG有ST改变者占97．5％（17／120）。2．前降支缺血的S—ECG检出率79．7％，右冠脉77.3％，回旋支41．7％；3．前降支缺血最敏感的导联是V3（78．1％），右冠脉最敏感的导联是avF（77．3％），回旋支表现多样。
In this study, percutaneous transluminal coronary angioplasty (PTCA) occlusion of the coronary arteries by the balloon-induced myocardial ischemia, while recording the surface ECG (S-ECG) and recording the balloon through the coronary guide wire distal epicardium ECG - intracoronary electrocardiogram (IC-ECG), ECG changes observed when myocardial ischemia. A total of 98 patients with 120 blood vessels. Results: 1. The detection rate of S-ECG on myocardial ischemia was 66.7% (80/120), while that of IC-ECG was 97.5% (17/120). 2. The detection rate of S-ECG in anterior descending artery was 79.7%, right coronary artery was 77.3%, and supraclavicular branch was 41.7% .3. The most sensitive lead of anterior descending branch was V3 (78.1%). The most sensitive lead of the right coronary artery was avF (77.3%).