RESUMO
BACKGROUND: Bleeding during functional endoscopic sinus surgery is a challenge for the quality of the surgical field for surgeons. This study aimed to evaluate the effect of desmopressin premedication on blood loss and the quality of the surgical field in endoscopic sinus surgery. METHODS: A total of 90 American Society of Anesthesiologists physical status I-II patients underwent endoscopic sinus surgery for chronic sinusitis. They were randomly allocated to receive either desmopressin 0.3 µg/kg or saline before the operation. Management of anesthesia was achieved with propofol and remifentanil infusions, with moderate, controlled hypotension. Blood loss and quality of the surgical field were assessed after surgery. Effects of desmopressin on anesthetic requirements and hemodynamic variables were analyzed. RESULTS: Blood loss was significantly less in the desmopressin group (mean ± SD, 42 ± 8.7 ml) than in the control group (70 ± 9.2 ml, P < 0.001). Surgeons were more satisfied with the surgical field in the desmopressin group than in the control group (median score, 4 [3-5] vs. 7 [6-9], P < 0.001). Requirements for remifentanil and esmolol were lower in the desmopressin group than in the control group. CONCLUSIONS: Premedication with desmopressin 0.3 µg/kg can effectively reduce bleeding during endoscopic sinus surgery.
