Effects of Smaller Physical Size on Complex Arterial Grafting in Coronary Artery Operations

• Published in: The Annals of thoracic surgery Vol. 62; no. 3; pp. 733 - 736
• Main Authors: Nishida, Hiroshi, Nakajima, Masato, Ihashi, Kenji, Sato, Motoki, Shiikawa, Akira, Endo, Masahiro, Koyanagi, Hitoshi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY Elsevier Inc 01.09.1996; Elsevier Science
• Subjects: Biological and medical sciences; Body Constitution; Coronary Artery Bypass - mortality; Disease-Free Survival; Epigastric Arteries - transplantation; Female; Hospital Mortality; Humans; Male; Medical sciences; Middle Aged; Postoperative Complications; Risk Factors; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Surgery of the heart; Thoracic Arteries - transplantation; Vascular Patency; Veins - transplantation; Human; Treatment; Aortocoronary; Bypass; Follow up study; Surgery; Body size; Complexes; Survival; Comparative study
• ISSN: 0003-4975; 1552-6259
• DOI: 10.1016/S0003-4975(96)00281-4

The trend in coronary artery bypass grafting is for a gradual transition to the more extensive use of arterial grafts. This study was designed to investigate the effects of patient body size on complex arterial grafting in coronary artery bypass procedures. Four hundred forty-five patients who underwent coronary artery bypass grafting with two or more distal anastomoses using arterial grafts were divided into two groups according to body surface area: group A (n = 114), 1.60m2 or less; and group B (n = 331), greater than 1.60m2. Preoperative patient characteristics and early and long-term results were compared between the groups. The prevalence of female sex (27% in group A versus 0.9% in group B; p < 0.0001) and age (62.7±8.1 years in group A versus 58.9±7.0 years in group B; p < 0.001) were significantly different. However, the prevalence of previous myocardial infarction and of left ventricular dysfunction and the extent of coronary artery disease were not significantly different. Three patients (2.6%) in group A and 3 patients (0.9%) in group B died within 30 days of operation (p = 0.18). The 1-month patency rate of arterial grafts was not significantly different (98.7% versus 96.7%; p = 0.16), but that of venous grafts was significantly lower in group A than in group B (88.9% versus 97.7%; p = 0.045). No significant difference was noted in the 3-year actuarial survival rate (93.8% versus 91.6%). The extensive use of arterial grafts in patients with small body size was associated with excellent long-term results, with no significant increase in operative mortality or morbidity.