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  • Title: Experimental prevention of free flap thrombosis. I: A model of free flap failure.
    Author: Atchabahian A, Masquelet AC.
    Journal: Microsurgery; 1996; 17(12):710-3. PubMed ID: 9588717.
    Abstract:
    A model to evaluate the efficacy of therapies aimed at reducing the failure rate of microvascular free flaps was developed in the rat, inspired by earlier work on the rabbit ear by Ozbek et al. (Ann Plast Surg 32:474-477, 1994). It consisted in raising an epigastric groin flap on the femoral pedicle, while cutting the femoral artery, twisting it around the femoral vein, and resuturing it. Immediate patency was always seen, but 19 of 20 such anastomoses presented with thrombosis after 24 hours (15 venous and 4 mixed thromboses). Ten similar anastomoses performed without twisting did not result in thrombosis (P = 0.000000366). This model appears to be adequate for simulating free flap failure.
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