Comparação de duas técnicas de orquiectomia em eqüinos, empregadas no ensino da técnica cirúrgica veterinária

Abstract

The bilateral orchiectomy is a simple and routine surgery in equine practice, but the potential for complications is high. The most common complication is bleeding, which if untreated leads to cardiogenic shock and death. Several techniques and variations of this surgery are described in the literature, and the most frequently used is the open technique. The objective of this study was to compare two surgical techniques employed by students of veterinary medicine without experience with orquiectomy in horses. Sixteen male horses were used with an average age of six years (± 4). They were divided into two groups, selected at random. In group 1, the animals were castrated using emasculator, to promote hemostasis (n=8). In group 2, animals were castrated using nylon clamp, 2.5 mm wide, to promote hemostasis (n=8). The time of surgery, bleeding, presences of edema of the prepuce, purulent discharge in the wound, time of closing the wound and lameness after surgery were evaluated. Significant difference (P<0,05) between the groups was observed just to presence of bleeding in the immediate postoperative period. The horses castrated by emasculator had a higher incidence of bleeding. The nylon clamp is safe to be used in equine orchiectomy. Both techniques were feasible and easily applicable in practice.