Factors for prognostic use in equine obstructive small intestinal disease

Area of Science:

• Veterinary Surgery
• Equine Medicine
• Surgical Pathology

Background:

• Small intestinal obstruction is a common surgical emergency in horses.
• Accurate diagnosis and prognosis are crucial for effective treatment and improved outcomes.
• Identifying reliable diagnostic and prognostic indicators remains an area of research.

Purpose of the Study:

• To prospectively evaluate intraluminal hydrostatic pressure and peritoneal fluid protein concentration as diagnostic and prognostic indicators in horses with small intestinal obstruction.
• To compare these parameters between horses that survived surgery and those that did not.

Main Methods:

• Prospective evaluation of twenty horses undergoing surgery for small intestinal obstruction.
• Measurement of intraluminal hydrostatic pressure and peritoneal fluid protein concentration.
• Histologic evaluation of intestinal specimens.
• Comparison of parameters between horses that lived (group 1) and died (group 2).

Main Results:

• Significant differences in mean intraluminal hydrostatic pressure (6.3 cm H2O vs. 15 cm H2O) and peritoneal fluid protein concentration (2.8 mg/dl vs. 5.4 mg/dl) between groups 1 and 2 (P < 0.001 and P < 0.01, respectively).
• More severe mucosal lesions were observed in horses that died (group 2).
• No significant differences were found in packed cell volume, total serum protein, white blood cell count, anion gap, or duration of colic.

Conclusions:

• Peritoneal fluid protein concentration and intraluminal hydrostatic pressure are significant indicators of outcome in horses with small intestinal obstruction.
• These parameters can serve as adjuncts for diagnosis and as prognostic tools in equine surgical practice.