A Clinical Study of End-to-End versus End-to-Side Techniques for Microvascular Anastomosis

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Abstract
The choice of microvascular anastomotic technique, end-to-end versus end-to-side, is still an item of debate. A review of the literature reveals no difference in patency rates in animal models where there is no size discrepancy. The available clinical evidence stems from Godina's early experience, proclaiming a higher failure rate with end-to-end anastomoses. Factors such as size mismatch and use of injured vessels, rather than anastomotic technique, may have been responsible. This clinical study examines the fate of over 2000 microvascular anastomoses performed in more than 900 tissue transplants. Complications attributable to the anastomosis were considered failures of the anastomosis, were tabulated, and were compared between the two techniques. The end-to-end and end-to-side microvascular techniques were found to be equally effective when properly applied. The choice of technique therefore should be secondary to factors influencing the choice of recipient vessel, such as the condition of the vessel, its accessibility, and the preservation or augmentation of maximal distal flow to an extremity.

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