Modified sleeve anastomosis in large muscular arteries of sheep.
OBJECTIVE
The purpose of this investigation was to test a modified telescopic anastomosis in large muscular arteries.


METHODS
The right carotid arteries in 30 sheep (average weight 57+/-5.7 kg) were transected and anastomosed end to end using two guided sutures and compared with a control group (10 sheeps) using two external sutures (Lauritzen method).


RESULTS
The mean time to complete the anastomosis (4.5 min) and hemostasis (4.3 min) in the experimental group was less than the control group (17.3 min for anastomosis and 6.4 min for hemostasis) (P<0.05). In addition, the total amount of blood loss during the modified anastomosis was significantly lower than Lauritzen method (3.8 versus 8 ml). In both experimental and control groups the scanning electron microscopy (SEM) at 90th day post-operation revealed a continuous smooth layer of endothelial cells covering the anastomotic junction.


CONCLUSIONS
Anastomosis with two guided sutures is easy and faster to perform and could be applicable to an acutely transected vessel.
Peirovi
H
H
Experimental Research Centre, National Institute of Tuberculosis and Lung Disease (NRITLD), Shaheed Beheshti University of Medical Sciences and Health Services, Tehran, Iran.
Farnia
P
P
Bahrami
A
A
Mohsenifar
Z
Z
Kashani
B S
BS
Ghanavi
J-E
JE
D000714:Anastomosis, Surgical / Q000379:methods*; D000818:Animals; D016063:Blood Loss, Surgical; D002339:Carotid Arteries / Q000601:surgery*; D042783:Endothelial Cells / Q000473:pathology; D004730:Endothelium, Vascular / Q000473:pathology; D008853:Microscopy; D023421:Models, Animal; D012756:Sheep; D013536:Suture Techniques; D018608:Ultrasonography, Doppler