Abstract :
[en] The occlusion of inguinal ring is the treatment to avoid
the inguinal hernia in horses. The aim of this study is evaluate the
efficacy of homologous pericardium grafts for internal inguinal ring
closure in horses, comparing mechanical or manual laparoscopic
suture. Cross over study, using six healthy intact male Mangalarga
breed horses aged between 3 and 12 years. Horses were operated
under general anesthesia in 25º Trendelenburg position. Five
laparoscopic portals were employed. Pericardium grafts measuring
4x5cm were anchored covering the left and right internal inguinal
rings using either manual intracorporeal suture or laparoscopic
stapler. Horses were followed-up during 11 weeks when were submitted
to a laparoscopic control. Surgical time, trans and postoperative
complications and effectiveness of internal inguinal closure were
evaluated and statistically analyzed. The level of significance was set at
5% P<0.05. The procedures were realized without complications and
the mean time required for manual and mechanical suture procedures
differed significantly (67.8±15.3 and 14.1±2.1 min respectively;
P<0.05). All manually sutured grafts remained in place and partial
suture dehiscence with incomplete occlusion of the internal inguinal
ring was observed in two stapled grafts. Non-severe complications
were observed trans or postoperatively. One synechiae and three
omental adhesions were observed by laparoscopic control on day
77, but without clinical relevance in the evaluated period. The use of
homologous pericardium grafts was effectiveness to internal inguinal
ring closure by laparoscopy. Mechanical suture was faster to perform
than manual, but provided less satisfactory results concerning safety
of graft fixation.
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