Research Article| Volume 46, ISSUE 5, P378-383, 1993

Observations on experimental flow-through venous flaps

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      The aim of this work was to compare the survival of an arteriovenous island flap with the survival of an island flap with a flow-through venous supply. Our experimental studies were performed on 95 Wistar rats randomised into six groups: Group 1: Indian ink injection of flow-through venous flaps with capillary network; Group 2: control group deprived of vascularisation; Group 3: control group with arteriovenous supply; Group 4: flow-through venous flaps of group 1; Group 5: epigastric flow-through venous flaps with a main venous trunk; Group 6: histological examination of flow-through venous flaps. The survival of flaps was monitored by direct examination, histological examination, capillaroscopy, and laser Doppler. Three out of 50 flow-through venous flaps survived. There was a statistically significant difference in the delay of clinical necrosis between the composite non vascularised free grafts (2.8 ± 1.2 days) and the flow-through venous flaps (4.1 ± 1.3 to 4.9 ± 1.1 days depending on the type of flap). A 20% decreased venous blood flow was observed in the flow-through venous flaps.


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