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少数心绞痛病人无异常体征,其静止时及运动试验后的心电图均正常,冠状动脉造影检查对这些病人亦无意义,应用心房起搏试验可在疑有冠状动脉疾患者诱发心绞痛,但在心绞痛症状不典型的病人亦无法看出。本文介绍通过冠状动脉窦插入导管取血测定乳酸盐含量,诊断可疑的心绞痛。正常心肌及取自冠状动脉窦的血内乳酸盐含最少于全身动脉血内含量,心肌局部缺血时,由于无氧代谢的结果,冠状动脉窦血内乳酸盐水平将会上升,可能高于全身动脉血内含最。作者研究了54例,分成3组,每组18例,对照由运动诱致的无线电遥测心电图改变与快速心房起搏试验
A small number of patients with angina without abnormal signs, their resting and exercise test ECG are normal, coronary angiography in these patients also meaningless, the application of atrial pacing test in patients with suspected coronary artery disease induced angina, but in angina symptoms Atypical patients can not see. This article describes the determination of lactate levels by coronary catheterization catheterization, diagnosis of suspected angina pectoris. Normal myocardium and blood lactate taken from the coronary sinus contain the least amount of systemic arterial blood, myocardial ischemia, as a result of anaerobic metabolism, coronary sinus blood lactate levels will rise, may Higher than the systemic arterial blood containing the most. The authors studied 54 patients and divided them into 3 groups of 18 patients in each group. Controlled by exercise-induced radio telemetry ECG changes and rapid atrial pacing test