当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF CARDIOLOGY期刊下所有文献 > Prognostic significance of exercise thallium-201 myocardial perfusion imaging compared to stress echocardiography and clinical variables in patients with unstable angina who respond to medical treatment.

Prognostic significance of exercise thallium-201 myocardial perfusion imaging compared to stress echocardiography and clinical variables in patients with unstable angina who respond to medical treatment.

Abstract：

:The prognostic value of thallium-201 imaging in patients with unstable angina is not well established. Forty consecutive patients with unstable angina who had responded to medical therapy underwent predischarge symptom-limited exercise testing and 39 of them underwent exercise thallium-201 imaging, on average 3 days after the exercise test. Exercise echocardiography was performed in 36 of these patients in conjunction with the predischarge exercise test. Patients with previous myocardial infarction, coronary revascularization, left bundle branch block and dilated cardiomyopathy were not included in the study. An echocardiographic wall-motion score index was derived by analyzing left ventricular regional wall motion. During a follow-up period of 30 +/- 6.4 months, 3 patients had a non-fatal myocardial infarction and 20 required revascularization because of a recurrence of severe medically refractory angina. Univariate predictors of cardiac events (non-fatal myocardial infarction or a need for revascularization) during follow-up included ST-depression during exercise, positive exercise echocardiography, a low exercise wall-motion score index, the presence of thallium-201 redistribution and the number of myocardial segments with thallium-201 redistribution. However, stepwise logistic regression analysis revealed that the presence of thallium-201 redistribution was the only significant non-invasive predictor (P < 0.005) of a cardiac event among patients who underwent predischarge exercise testing and exercise thallium-201 imaging. Among patients undergoing exercise echocardiography and exercise thallium-201 imaging, the number of segments with thallium-201 redistribution was the only significant predictor (P < 0.0005) of future cardiac events.(ABSTRACT TRUNCATED AT 250 WORDS)

journal_name

Int J Cardiol

journal_title

International journal of cardiology

authors

Amanullah AM,Lindvall K,Bevegård S

doi

10.1016/0167-5273(93)90298-u

subject

Has Abstract

pub_date

1993-04-01 00:00:00

pages

71-8

issue

1

eissn

0167-5273

issn

1874-1754

pii

0167-5273(93)90298-U

journal_volume

39

pub_type

杂志文章

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