[Unsuccessful laparoscopic castration in a cryptorchid Frisian stallion].

The research article discusses a case where a 2-year-old unilateral inguinal cryptorchid Frisian stallion underwent laparoscopic castration but it failed due to an alternate blood supply to the testes. As a result, both testicles had to be removed through a different surgical method.

Objective of the Research

The objective of this research was to examine the case of an unsuccessful laparoscopic castration in a Frisian stallion, a kind of horse, with the condition of cryptorchidism (retained testicles). The method used for this castration was bilateral laparoscopic intra-abdominal spermatic cord transection.

Procedure Carried Out

• The stallion underwent a surgical procedure known as bilateral laparoscopic intra-abdominal spermatic cord transection. This is a minimally invasive surgery where the surgeon makes small incisions in the abdomen to reach and cut the spermatic cords of both testes.
• The horse’s hormonal levels were monitored post-operation. However, high testosterone levels were detected on the 7th postoperative day, which suggested the surgery had not been successful in disabling all functioning of the testes.

Follow-up Treatment

• Because of the unsuccessful laparoscopy, an open castration was performed. This is a more invasive procedure where large incisions are made to directly access and remove the testes.
• The removed testes were analyzed in a pathology laboratory. They found that the Leydig cells, which are responsible for testosterone production, were still present and functioning.

Conclusion of the Study

• The study concludes that the failure of the laparoscopic castration was not due to the surgical technique, but rather to an unexpected alternate blood supply to the testes.
• This blood supply was provided by vessels derived from the cremaster (the muscle responsible for raising and lowering the testes) and/or external pudendal artery (an artery that provides blood supply to the genital region).