Enhancement of CO2 laser microvascular anastomoses by fibrin glue

• Published in: The Journal of surgical research Vol. 45; no. 1; pp. 112 - 119
• Main Authors: GRUBBS, P. E. JR, SU WANG, MARINI, C, SAMIR BASU, ROSE, D. M, CUNNINGHAM, J. N. JR
• Format: Conference Proceeding Journal Article
• Language: English
• Published: New York, NY Elsevier 01.07.1988
• Subjects: Anastomosis, Surgical - adverse effects; Anastomosis, Surgical - methods; Aneurysm - etiology; Animals; Aprotinin - therapeutic use; Biological and medical sciences; Capillaries - surgery; Carbon Dioxide; Drug Combinations - therapeutic use; Equipment and Supplies; Factor XIII - therapeutic use; Fibrin Tissue Adhesive; Fibrinogen - therapeutic use; Laser Therapy; Medical sciences; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Sutures; Thrombin - therapeutic use; Vascular surgery: aorta, extremities, vena cava. Surgery of the lymphatic vessels; Rat; Rodentia; Surgical anastomosis; Cardiovascular disease; Surgical glue; CO; Artery; Fibrin; Vertebrata; Mammalia; laser; Microsurgery; Experimental surgery
• ISSN: 0022-4804; 1095-8673
• DOI: 10.1016/0022-4804(88)90029-7

Laser-assisted microvascular anastomoses (LAMA) are characterized by low early bursting strength and high aneurysm rates. The effects of fibrin glue on bursting strength (BS), patency, and aneurysm rate of LAMAs were compared to standard suture and laser anastomosis. Rat femoral arteries (0.9-1.1 mm) were anastomosed end-to-end by three methods: (1) conventionally with 8 to 10 interrupted 10-O nylon sutures; (2) 3 stay sutures and CO2 laser (spot size, 0.275 mm; pulse, 0.2 sec, 80 mW); and (3) cryoprecipitated fibrinogen, 35 mg/cc, crystallized thrombin, CaCl, 20 mg/cc, aprotinin (2000 kIU/cc) applied to weld site in conjunction with laser weld as in (2) above. Patency, aneurysms, and histology were evaluated at 3 weeks, and BS (mm Hg) was measured in six additional vessels at 1 and 24 hr. There was no statistically significant difference in patency rates. Both the suture and fibrin glue groups had significantly higher 1 and 24 hr bursting strengths (P less than 0.05) and significantly lower aneurysm rates (P less than 0.001) than standard laser. There was no significant difference in bursting strength between suture and fibrin glue groups. Histology in the fibrin glue group showed medial damage similar to the LAMA and calcification of aneurysmal vessels. Fibrin glue enhancement of LAMAs produces equal patency, higher early bursting strength, and fewer aneurysms at 3 weeks compared to conventional laser.