Histologic findings in the gastrointestinal tract of horses with colic.

This research article discusses a study conducted at the University of Georgia Veterinary Medical Teaching Hospital on 30 horses that were diagnosed with severe colic. The study aimed to examine any morphological changes in the horses’ gastrointestinal tracts and understand any potential correlations between the severity of these changes and the survival or non-survival of the horses.

Research Objective and Methodology

• The paper’s primary objective was to identify and understand the histological (microscopic tissue) changes in the gastrointestinal tracts of horses suffering from severe colic.
• Researchers analyzed 30 horses admitted to the University of Georgia Veterinary Medical Teaching Hospital with colic severe enough to require surgery or euthanasia.
• The commonly identified causes of colic in these horses were categorized into simple obstruction, strangulation obstruction, thromboemboli, and inflammation.
• Histological studies were performed on the gastrointestinal tracts of these horses to identify and grade the lesions arising due to colic.

Research Findings

• The study found mucosal changes present distal and proximal to the primary lesion site during microscopic tissue examination.
• The changes were consistent across all groups of horses, irrespective of the cause of colic.
• Changes characteristic of ischemia (deficient blood supply) were found common to all groups, highlighting a possible connection between ischemia and severe colic in horses.

Conclusion and Implications

• Correlation studies showed that lesion grades of 2 or higher were highly predictable for non-survivability, with an accuracy of 90%. This means that horses with these grades were 90% likely not to survive.
• Based on these results, the research suggests that intestinal biopsy could potentially be used as a prognostic tool in the postsurgical evaluation and management of equine colic. This could help provide a prognosis for survival after surgery and also guide further management strategies.