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Circumferential mural bands in the small intestine causing simple obstructive colic: a case series
J F Perez Olmos1, W L Schofield, H Dillon
1Troytown Equine Hospital, Kildare, Ireland.
Equine Veterinary Journal
|July 27, 2006
Summary
Surgical decompression of the small intestine into the caecum is effective for treating horses with circumferential mural bands (CMB). This procedure offers a 100% survival rate, making it a promising treatment for this emerging equine condition.
Area of Science:
- Veterinary Surgery
- Equine Medicine
- Gastrointestinal Pathology
Background:
- Circumferential mural band (CMB) is an emerging cause of small intestinal obstruction in horses.
- The etiology of CMB in horses remains largely unknown.
- Clinical signs typically involve simple small intestinal obstruction.
Purpose of the Study:
- To evaluate the prognosis and surgical outcomes for horses diagnosed with small intestinal CMB.
- To assess the efficacy of surgical decompression into the caecum for treating CMB.
Main Methods:
- A retrospective study identified 28 horses with CMB from 559 colic surgeries over 5.5 years.
- All horses underwent exploratory celiotomy, revealing simple jejunal obstruction due to CMB.
- Surgical intervention involved manual decompression into the caecum, with resection in one severe case.
Main Results:
- Manual decompression successfully resolved the obstruction in all treated horses.
- Histopathology revealed inflammatory infiltration, predominantly eosinophils, without detectable parasites.
- All horses recovered and were discharged, with a 100% long-term survival rate.
Conclusions:
- Surgical decompression of the small intestine into the caecum provides a favorable prognosis for horses with CMB.
- This surgical approach is a safe and effective treatment for small intestinal obstruction caused by CMB in horses.
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