Standing Colic Surgery? In Some Cases It’s Possible

While traditional surgeries are still suitable for the vast majority of colic cases, recent research showed that standing operations for colic can be beneficial when other options have failed.
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What do you do when two colic surgeries have failed, and the equine patient is still in a great deal of pain? One team of veterinarians facing this scenario tried something a little different on one 7-year-old Swiss Warmblood gelding and, as it turned out, the third surgery—a standing, hand-assisted procedure—was the charm.

“We couldn’t see the lesion that was causing the colic—in this case, a mesenteric defect—when we used traditional laparoscopic (camera-assisted) techniques,” said Thomas Witte, BVetMed, PhD, FHEA, MRCVS, Dipl. ACVS, ECVS, RCVS-Recognized Specialist in Equine Surgery. “But when we adopted a hand-assisted technique, which allows manipulation of the intestine directly with one hand, we were able to identify and correct the lesion. Being able to see and visually inspect the defect was critical to the success of the repair, especially because we were able to locate and avoid all the regional blood vessels.”

Witte, a senior lecturer in equine surgery at the Royal Veterinary College in Hatfield, England, said veterinarians discovered the gelding had a tear in his mesojejunum, a layered tissue in the abdomen that helps hold the jejunum (the middle part of the small intestine) in place. Part of the horse’s small intestine had slipped through the tear (also called a rent) and become stuck, causing it to swell and tighten. In their first surgery, they could only see the swelling and displacement of the intestines, and so they corrected that. But eight hours later, the horse experienced severe colic again. The team operated again and saw the tear, but couldn’t reach it to fix it correctly, Witte said.

“We tried to fix the rent at the second surgery under general anesthesia and couldn't get to the most proximal (closest to the horse's back) part of it,” he said. “The risk of only partially closing the rent is that it is then smaller, and so there is an even greater chance of the bowel becoming strangulated than there is with a big rent. So we left it in the hope that it would perhaps remain clinically insignificant

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Passionate about horses and science from the time she was riding her first Shetland Pony in Texas, Christa Lesté-Lasserre writes about scientific research that contributes to a better understanding of all equids. After undergrad studies in science, journalism, and literature, she received a master’s degree in creative writing. Now based in France, she aims to present the most fascinating aspect of equine science: the story it creates. Follow Lesté-Lasserre on Twitter @christalestelas.

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