The Role of DDAVP (Desmopressin) in Orthognathic Surgery

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Abstract
Desmopressin (1-deamino-8-D-argininevasopressin, DDAVP) is a synthetic analog of the antidiuretic hormone L-argininevasopressin. DDAVP has been shown to increase the plasma concentration of endothelial factor VIII, thus increasing coagulant activity. There is evidence from controlled clinical trials indicating that DDAVP can reduce blood loss and transfusion requirements for individuals with normal coagulation profiles undergoing various surgical procedures. This study was conducted to evaluate the efficacy of the DDAVP in reduction of blood loss during orthognathic surgery. Twenty patients, 15 females and 5 males, undergoing bimaxillary osteotomy were randomized into two groups of ten. Perioperatively, group I patients received 20 µg of DDAVP infused over one-half hour. Group II patients did not receive DDAVP. Hypotensive anesthesia (mean arterial pressure

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