Survival and complication rates in 300 horses undergoing surgical treatment of colic. Part 2: Short-term complications.
Authors: Mair T S, Smith L J
Journal: Equine veterinary journal
Summary
# Editorial Summary: Short-term Complications Following Equine Colic Surgery Post-operative complications remain a significant challenge following colic surgery, yet systematic data on their incidence and risk factors have been limited. Mair and Smith analysed 300 consecutive surgical colic cases (1994–2001) to document short-term complication rates and identify predisposing factors, using retrospective review of clinical records and statistical comparison of discrete variables. Among 227 horses undergoing single laparotomy, post-operative pain affected 28.2%, incisional complications (drainage or infection) occurred in 26.9%, whilst ileus, endotoxaemic shock, jugular thrombophlebitis, septic peritonitis and colitis/diarrhoea developed in 13.7%, 12.3%, 7.5%, 3.1% and 2.2% respectively. Notably, small bowel obstruction cases showed higher ileus rates than large bowel cases; ischaemic lesions and small colon involvement carried greater risk for post-operative pain and shock; elevated admission plasma protein concentrations correlated with increased wound complications; and repeat laparotomy significantly elevated wound complication risk. Importantly, surgical management variables influenced outcomes—stent bandage application increased wound complications whilst protective wound coverage with incise drapes reduced them—suggesting that modifiable technical factors warrant prospective evaluation to improve post-operative survival and reduce morbidity.
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Practical Takeaways
- •Expect post-operative complications in approximately 3 out of 4 colic surgery cases; pain management and incisional monitoring should be standard post-op protocols
- •Type and location of obstruction influence complication risk—small bowel and ischaemic cases warrant more intensive post-operative monitoring and shock management
- •Surgical technique modifications may reduce complications: consider incise drapes for wound recovery protection and avoid stent bandages if alternatives are available
Key Findings
- •Short-term complications occurred in 227 of 300 horses (75.7%) following colic surgery, with pain (28.2%), incisional complications (26.9%), and post-operative ileus (13.7%) being most common
- •Small bowel obstruction cases had significantly higher post-operative ileus rates compared to large bowel obstruction
- •Ischaemic obstructions and small colon obstructions were associated with higher rates of pain and endotoxaemic shock compared to simple obstructions and large colon cases
- •Stent bandage application increased wound complication rates, while incise drapes over the wound reduced wound complications compared to no protective covering