Small Animal Emergency and Critical Care Medicine: Self-Assessment Color Review, Second Edition, Q&A 16
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A 3-year-old male neutered Afghan hound presents for persistent vomiting over the past 2 days, not eating, and looking at his abdomen (16a). He has a history of eating things out of the trash and then developing diarrhea, but he has never been hospitalized. T = 39.2°C (102.6°F); HR = 165 bpm; RR = 30 bpm; CRT = 3 sec; MM pale pink, dry; femoral pulses weak. Abdominal palpation demonstrates a firm 3 cm × 2 cm mass within the small intestines in the mid-abdominal region. Thoracic auscultation findings normal. Radiographs show evidence of an intestinal obstruction. The dog is volume replaced and prepared for anesthesia.
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| During surgery, the mid jejunum containing a FB is exteriorized and an intestinal resection–anastomosis performed without an enterotomy. Which arrow points to the vessel that will be ligated during the resection (16b)? | The green one.
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| Which intestinal anastomosis suturing technique (interrupted or continuous) provides better appositional closure and less leakage? | Simple continuous is better. Anastomotic leakage is reported in 3% of animals undergoing continuous sutured anastomosis and up to 11% of animals undergoing interrupted sutured anastomosis.
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| What suture pattern can reduce eversion of mucosal tissue during intestinal anastamosis? | A modified Gambee suture pattern: the needle is passed full thickness through the intestinal wall and then back through the mucosa on the near side. Then the needle is placed into the mucosa–submucosa border on the far side, pushing the mucosa into the lumen, and then passed full thickness back out that side.
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| How can the anastomosis site be checked for leaks? | Distend the segment with sterile saline injected into the lumen while continuing to occlude the intestinal segments on both sides distal to the anastomotic site.
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| What are the risk factors associated with the complication of leakage following anastamosis? | FB removal or resection of traumatized intestines, pre-existing peritonitis, hypoalbuminemia, reduced blood supply.
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