Kubo H, Hirai H, Machii K
Toho University School of Medicine (Cardiology), Japan.
Ann Acad Med Singap. 1992 Jan;21(1):42-6.
To evaluate whether exercise training prevents the restenosis after percutaneous transluminal coronary angioplasty (PTCA), treadmill exercise with thallium-201 myocardial scintigraphy was performed at first and thirteenth week after PTCA in 18 patients with training and in 20 patients without training. Total treadmill exercise duration and maximal pressure rate product 13 weeks after PTCA increased significantly in the trained group, whereas there was no significant change in the untrained group. ST segment depression from the baseline did not change significantly in both groups. Myocardial perfusion obtained by Tl-201 scintigraphy improved significantly in the trained group, whereas there was no significant change in the untrained group. The restenosis rates at the third month after PTCA was 17% (3/18) in the trained group and 40% (8/20) in the untrained group. It is concluded that in patients with coronary artery disease, exercise training improves myocardial perfusion by preventing the progression of coronary artery stenosis after PTCA.
为评估运动训练是否能预防经皮腔内冠状动脉成形术（PTCA）后的再狭窄，对18例接受训练的患者和20例未接受训练的患者在PTCA后的第一周和第十三周进行了带201铊心肌闪烁显像的跑步机运动。PTCA后13周，训练组的跑步机总运动时长和最大压力心率乘积显著增加，而未训练组则无显著变化。两组从基线开始的ST段压低均无显著改变。训练组通过201铊闪烁显像获得的心肌灌注显著改善，而未训练组则无显著变化。PTCA后第三个月，训练组的再狭窄率为17%（3/18），未训练组为40%（8/20）。得出结论，在冠心病患者中，运动训练通过预防PTCA后冠状动脉狭窄的进展来改善心肌灌注。
