Treatment of angina pectoris by percutaneous transluminal coronary angioplasty

Percutaneous transluminal coronary angioplasty (PTCA) was performed on 12 patients with angina pectoris. PTCA reduced the percentage of stenosis of the coronary artery from 75.6 +/- 10.1 (means +/- SD) to 32.6 +/- 19.5. In addition, anginal attacks per week was reduced from 8.4 +/- 3.2 to 2.5 +/- 0.7. No life-threatening complications were produced by PTCA. The results indicates the effectiveness of PTCA as a treatment for angina pectoris.