From January 1992 through September 1993, 545 patients underwent PTCA in Asahikawa City Hospital. 6 patients (1.1%) required emergency CABG. Perfusion catheter was placed in three patients. This catheter allowed for immediate and temporary reperfusion of blood to the ischemic myocardial tissue. And it provided us with time and a patient in stable condition. This technique reduce PMI, morbidity, and mortality in emergency CABG after failed PTCA.