期刊
INTERNAL MEDICINE JOURNAL
卷 32, 期 11, 页码 520-525出版社
BLACKWELL PUBLISHING ASIA
DOI: 10.1046/j.1445-5994.2002.00270.x
关键词
coronary angiography; myocardial infarction; tachycardia; troponin; troponin I
Background: The new definition of myocardial infarction (MI) emphasizes the pre-eminent role of tropo-nin for diagnosis. Troponin rise indicates myocardial injury, but is not synonymous with infarction or ischaemia. Aims: To review the precipitating event for tropo-nin elevation in patients with angiographically normal coronary arteries, in a district general hospital. Methods: Consecutive patients with elevated tropo-nin I (TnI) who underwent angiography for suspected coronary disease were included in the present study if they had normal or mild disease (<50% diameter loss without complex features or thrombus). Precipitating event for TnI elevation was assigned on the totality of clinical evidence. Results: Twenty-one patients qualified, with an average age of 50 years (range 33-73). Sixty-two per cent of participants were female. Troponin release was attributed to tachycardia in six patients, only two of whom had haemodynamic compromise. Physical exertion was the precipitating factor in two patients; pericarditis in two patients; and severe congestive heart failure in one patient. Ten of 21 patients had no identifiable cause for a rise in TnI concentration. Five of 21 patients had left-ventricular wall motion abnormalities. There were no deaths or MI at 41 +/- 24 weeks follow up. Conclusion: Troponin is a sensitive marker of myocardial injury and may rise following apparently minor insults. A rise in TnI concentration may have a cause other than acute coronary syndrome and may occur without significant angiographic coronary artery disease.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据