Coronary artery bypass surgery with intermittent aortic cross-clamping

摘要: Despite the generally accepted use of cardioplegia for myocardial protection during cardiac revascularization and other operations, non-cardioplegic methods have been used by many surgeons throughout world. We prospectively studied 229 patients consecutively subjected to isolated coronary artery bypass surgery from March 1990 February 1991 a single surgeon who intermittent aortic cross-clamping construction distal anastomoses. The mean age was 58.9 + 8.9 years. One hundred nine (47.6%) with unstable angina were urgent or emergent 129 (56.3%) had previous infarction. number grafts per patient 3.0. ischaemic time graft 6.5 1.4 min. At least one internal mammary in 98% cases (1.4 grafts/patient). Hospital mortality 0.9% (two patients, neither case related procedure). Only (3.9%) required inotropes none needed intra-aorti@counterpulsation. analysis serum enzymes specific lesion showed CPK-MB/CPK ratio 10.5 f 10.2 after surgery, 6.4 6.6% at 24 h 6.9 2.6% 5th day. four (1.7%) ECG criteria These results compared retrospectively those 40 immediately preceding (December 1989 1990), whom crystalloid used. There no differences between two groups regard age, prevalence infarction, technique cross-clamp 50.0 11.5 this group (10% ; p = NS) inotropic support. (2.5%) sustained enzyme levels former group. results, non-selected appear demonstrate that short periods (< 10 min) affords good is simple safe method procedures. (Eur J Cardio-thorac Surg (1992) 6:189-1941