In the past 7 years, 9 emergent or urgent coronary artery bypass operations after failed percutaneous transluminal angioplasty (PTCA) were performed among 947 (PTCA). Since the introduction of coronary perfusion catheter system for the support of coronary perfusion during PTCA we could reduce the number of emergent cases and these patients could be operated on semi-emergently and securely without endangering co-medical staffs in a hurry. It is also unnecessary to be on standby all the time when the PTCA is being undertaken. Two acute myocardial infarction cases died in the early phase of this study (operative mortality 22%) and none after the introduction of coronary perfusion system during PTCA.
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