INFLUENCE OF EXERCISE INTENSITY ON THE PRESENCE, DISTRIBUTION, AND SIZE OF TL-201 DEFECTS

被引：49

作者：

HELLER, GV ^{[1
]}

AHMED, I ^{[1
]}

TILKEMEIER, PL ^{[1
]}

BARBOUR, MM ^{[1
]}

GARBER, CE ^{[1
]}

机构：

[1] BROWN UNIV,SCH MED,PROVIDENCE,RI 02912

来源：

AMERICAN HEART JOURNAL | 1992年 / 123卷 / 04期

关键词：

D O I：

10.1016/0002-8703(92)90695-R

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The effects of two levels of exercise intensity on the size and location of thallium-201 defects were compared in 22 patients with known ischemic coronary artery disease. A symptom-limited incremental exercise test was performed followed (> 48 hours) by submaximal steady-state exercise at 70% of the peak heart rate achieved during the incremental test. Planar thallium-201 myocardial scans obtained after each protocol were analyzed by means of both visual qualitative and computerized quantitative methods. After incremental exercise all patients exhibited reversible thallium-201 defects, and submaximal exercise still resulted in reversible defects in 20 (91%) patients. However, the size of the ischemic area and the degree of ischemia were significantly reduced by both qualitative and quantitative criteria after submaximal exercise. Therefore interpretation of thallium-201 scans with regard to severity of disease and prognosis should take into account exercise intensity.

引用

页码：909 / 916

页数：8

共 33 条

[1] PREDICTION OF MULTIVESSEL CORONARY-ARTERY DISEASE AND PROGNOSIS EARLY AFTER ACUTE MYOCARDIAL-INFARCTION BY EXERCISE ELECTROCARDIOGRAPHY AND TL-201 MYOCARDIAL PERFUSION SCANNING [J].