Intestinal ligation during ovariohysterectomy has not been previously reported in dogs. Risk factors for this complication appear to be the same as those for ureteral injury, namely decreased surgical visualization due to small patient size and small incision size. This case report describes how the presentation of intestinal ligation in a 2-kg, 11-month-old chihuahua can mimic that of iatrogenic ureteral injury with vomiting, anorexia, and severe azotemia. Ultrasound served as a key diagnostic to visualize intestinal mechanical obstruction, an encircling ligature around a segment of jejunum with no blood flow on Doppler interrogation, and normal appearance and blood flow of the ureters and kidneys. The treatment consisted of aggressive fluid therapy, circulatory support, and emergent resection and anastomosis of the necrotic portion of the intestines. Within 48 h, the dog's azotemia was resolved, and it was reported to be doing well at 1-month follow-up.
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