Document Type : Research article
Authors
1
Department of Surgery, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt.
2
Department of Theriogenology, Obstetrics and Artificial Insemination, Faculty of Veterinary Medicine, South Valley University, 83523, Qena, Egypt.
3
Department of Theriogenology, Obstetrics and Artificial Insemination, Faculty of Veterinary Medicine, South Valley University 83523, Qena, Egypt
Abstract
The aim of the present study was to evaluate the efficacy of pudendal nerve block as an alternative procedure to epidural analgesia for penile relaxation in male goats. Five healthy male goats were subjected to pudendal nerve block and epidural analgesia with a two-weeks interval as a washing period. Bilateral pudendal nerve block was performed using 1% of lidocaine HCl by ischiorectal fossa approach. Lumbosacral epidural analgesia was performed using 1% of lidocaine HCl. The onset and duration of the anti-nociception effect in the perineal region were recorded. Area of desensitization and penile relaxation were observed. Incoordination, ataxia, and analgesic effects were recorded. Pulse rate, respiratory rate, and rectal temperature were recorded at 0-, 5-, 15-, 30-, 60-, and 90-min after administration. This study showed that both the pudendal nerve block and epidural analgesia resulted in analgesic effects, however, penile relaxation was observed in 4 out of 5 male goats subjected to pudendal nerve block. None of the male goats subjected to lumbosacral epidural analgesia showed penile relaxation, spontaneously. The onset was significantly earlier in the pudendal nerve block compared to the epidural analgesia, Moreover, the duration of action was significantly shorter in the pudendal nerve block compared to the epidural analgesia. Incoordination, ataxia, and recumbency were observed in 3 out of 5 male goats subjected to epidural analgesia. In conclusion, the pudendal nerve block is likely superior to the epidural analgesia for examination of the penis and surgical procedures on the male goat reproductive system in the standing position.
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