Surgical treatment of priapism in a stallion.

The research talks about the surgical intervention done on a stallion suffering from priapism – a persistent and often painful erection that lasts for more than four hours, which was triggered by the administration of acetylpromazine.

Case Introduction

• The stallion was studied for the condition of priapism, which is an abnormal persistent erection that goes beyond four hours and is not related to sexual arousal. The researchers noted that this condition occurred post administration of acetylpromazine in the stallion.

Treatment and Intervention

• The researchers first attempted to treat the case with conservative methods, which includes the use of medications and physical methods. However, these did not yield any resolution to the stallion’s priapism condition.
• Following the failure of the conservative measures, a more intrusive intervention was considered. The corpus cavernosum penis (CCP), the sponge-like regions of erectile tissue which contain most of the blood in the penis during an erection, was drained and also irrigated, presumably to relieve the painful and abnormal erection.
• To further aid in the resolution of the condition, a vascular shunt was created between the erectile bodies. A vascular shunt is a surgical procedure that creates a new route of blood flow to or from an organ.

Outcomes of the Intervention

• The surgical interventions initially seemed successful as the stallion’s persistent erection subsided. However, the adverse effect was that the stallion was found unable either to retract or erect its penis, indicating a loss of the natural erectile function post interventions.
• As a result of the loss of erectile function, the researchers decided to castrate the stallion – the procedure of removal of the testicles. This procedure helps stop the production of male hormones.
• The researchers also carried out an intervention to surgically retract the penis into the sheath, which is presumably for the protection and well-being of the stallion as it would not be able to retract or erect its penis naturally.