Megaesophagus was Complicated with Billroth I Gastroduodenostomy in a Cat

Abstract

ABSTRACT. A seven-year-old, female, domestic short hair cat was presented with a history of chronic anorexia. Radiographic examination revealed a large space-occupying calcified mass in the abdominal cavity. The mass was located in pylorus and did not extend into the duodenum and surrounding tissues. Billroth I gastroduodenostomy was conducted to remove the mass. Histopathological examination of the mass showed a lymphoma. Although Recovery following the operation was excellent, the patient showed intermittent vomiting unrelated to feeding. Radiographical examination revealed a megaesophagus, which was assumed to be a complication of the Billroth I procedure, since the condition was not observed before the procedure.

Resolution of megaesophagus after correction of a paraesophageal hernia

“…Muscular hypertrophy leading to thickening of the pharyngeal and diaphragmatic musculature and a secondary mega-esophagus has be seen in some advanced cases of hypertrophic myopathy in cats. 27 In addition, a case has been reported after a Billroth I gastroduodenostomy to remove a large mass later identified as lymphoma, 28 and two cases of megaesophagus have been reported in cats with pseudo-obstruction. 29 , 30 In the case reported here, it was suspected that the megaesophagus arose secondary to obstruction at the lower esophageal sphincter, resulting in dilation, and abnormal motility within the esophagus.…”

Treatment of pyloric stenosis in a cat via pylorectomy and gastroduodenostomy (Billroth I procedure)

“…13,14 Runk et al 13 described the use of this technique with a favorable outcome in a 1-year-old cat for treatment of duodenal perforation associated with oral administration of carprofen following ovariohysterectomy. After prolonged treatment for septic peritonitis, the cat recovered fully and was apparently normal according to the owners 6 months after surgery.…”

Surgical Anatomy of the Gastrointestinal Tract in Cats

“…The pylorus is not preferred for gastrotomy incisions due to the risk of stenosis [43]. When performing a Billroth I, which is rarely described in cats, it is important to take care not to ligate the bile duct [59][60][61]. The right gastric and right gastroepiploic vessels are ligated for this procedure [57].…”