Intra-abdominal hypertension in two adult horses.

This research work is an account of two clinical observations of increased intra-abdominal pressure (IAP) in adult horses, explaining the methods used to measure IAP, and how the findings can contribute to the scant information on this condition in animals, when compared to a wealth of literature for humans.

Objective and Methods

The research article revolves around the diagnosis and pathology of two adult horses who were discovered to have elevated intra-abdominal pressure (IAP). The researchers used a method known as the direct puncture technique to measure the IAP in these horses.

• The first case involved a 9-year-old Quarter Horse cross gelding which was brought in for evaluation due to urinary and neurologic signs. Upon examination, the veterinarians identified a hepatic abscess and abdominal effusion (accumulation of fluid).
• The second case was a 4-year-old Quarter Horse gelding, evaluated in connection with castration complications. The horse had developed an infection at the castration site which had extended to surrounding tissues, leading to peritonitis (inflammation of the lining of the abdominal cavity), abdominal effusion, and severe cellulitis of the limbs.

Findings

Both horses were found to have increased IAP in comparison with the established reference values for horses. The increase in their central venous pressure, and other hemodynamic changes, were consistent with symptoms seen in other species experiencing intra-abdominal hypertension (IAH) and its related conditions.

Significance and Conclusion

The study concludes by placing the research within a broader context. While there is extensive research on the management of IAH and abdominal compartment syndrome in humans, less is known about these conditions in animals, especially larger domestic species like horses. This study, thus, contributes additional knowledge to this field, particularly regarding the clinical, hemodynamic, and pathologic traits of equine IAH. It also endorses the use of the direct puncture technique, demonstrating its efficacy in diagnosing and understanding IAH in horses.