[Late onset of angina pectoris after coronary bypass surgery]

The repeat of angina pectoris of 598 patients with undergoing coronary bypass surgery during the years Jan. 1978 to Aug. 1987 was analyzed. The 5-year and 8-year survival rate was 88% and 84%, respectively. The 5-year and 8-year cardiac event free ratio was 91% and 83%, respectively. The 5-year and 8-year angina free ratio was 73% and 64%, respectively. The causes of repeat angina were graft occlusion in 42%, incomplete revascularization in 16%, progression of native coronary lesions in 28% and unknown in 14%, respectively. PTCR in 4 patients, PTCA in 8 patients and re-CABG in 8 patients were performed to relief from angina pectoris.