Surgical lesions of the small colon and post operative survival in a UK hospital population.
Authors: de Bont M P, Proudman C J, Archer D C
Journal: Equine veterinary journal
Summary
# Small Colon Surgery: Survival Outcomes and Clinical Predictors De Bont and colleagues reviewed 84 horses undergoing surgery for primary small colon pathology over a decade at a UK referral centre, documenting lesion types, short- and long-term survival rates, and preoperative factors predictive of small colon involvement. Horses that recovered from anaesthesia demonstrated encouraging survival to discharge, one year and two years post-operatively of 91.0%, 81.0% and 73.5% respectively, though resection and anastomosis emerged as the only independent predictor of reduced long-term survival, with median survival times of 1029 days in resection cases versus 3072 days where lesions could be managed without resection. Compared with surgical controls, small colon cases were characterised by significantly longer pre-admission colic duration and a higher incidence of post-operative diarrhoea, both of which may help clinicians identify cases more likely to have primary small colon pathology. These findings suggest that whilst surgical management of small colon lesions carries a reasonable prognosis, the need for resection warrants careful prognostic discussion with owners, and post-operative management should prioritise prevention and early recognition of diarrhoea as a significant post-operative complication. The data provide evidence-based reference points for clinical decision-making when counselling clients on surgical intervention for small colon disease.
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Practical Takeaways
- •Small colon surgical lesions carry a good prognosis overall, with over 90% surviving to discharge and 73% alive at 2 years, which can help inform owner expectations
- •If resection can be avoided through medical management or alternative surgical techniques, long-term survival is significantly improved (median 3072 vs 1029 days)
- •Horses presenting with prolonged preoperative colic signs and those developing postoperative diarrhoea require intensive monitoring and management, as these are associated with small colon pathology
Key Findings
- •91.0% of horses with small colon lesions survived to discharge, with 81.0% surviving to 1 year and 73.5% to 2 years post-operatively
- •Median survival time was significantly shorter in resection cases (1029 days) compared to non-resection cases (3072 days)
- •Small colon cases had longer duration of preoperative colic signs and higher incidence of postoperative diarrhoea compared to controls
- •Resection and anastomosis was the only factor independently associated with reduced long-term survival