The Experimental Studies on Reestablishment of Microcirculation in Venous Flaps at Early Stage after Operation / 第二军医大学学报

ABSTRACT

In this experiment we investigated the reestablishment of microcirculation and perfusion ways in venous flaps by means of rabbit ear chambers, image processing system, and composing video picture techniques, within 7 days after the operation. The results showed that the microcirculation of venous flaps, within two days after operation, was reestablished by two kinds of perfusion ways (1)Diversion of blood flow perfused the capillaries through the "to-and-fro" movement of venous blood. (2) The venous blood flowed into arterial vessels through arteriovenous anastomoses and perfused the capillaries. Later the second way replaced the first one within the 48 hours, since it could normally perfuse tissues and guarantee the venous flap blood supply for the rest of time.