Periódicos Brasileiros em Medicina Veterinária e Zootecnia

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Esophageal diverticulum and megaesophagus in a dog and a cat

Oliveira, Thaís Nascimento de AndradeVeloso, Jéssica FontesRocha, Paula dos SantosLacerda, Priscila DutraCarlos, Renata Santiago Alberto

Background: Esophageal diverticula are pouch-like dilatations in the esophageal wall that rarely affect dogs and cats, and may have the megaesophagus as a base cause. The definitive method of diagnosis is the contrasting chest X-ray that will visualize the sacculation.Cases: Case 1. A feline male, mixed breed, with 40 days of life was seen with complaint of postprandial regurgitation that was repeated at each meal. On physical examination, the animal was below ideal weight, apathetic, with pale mucosa and bristly. It was suspected of megaesophagus, which was confirmed by contrasting thoracic lateral-lateral (LL) radiography, and the patient also had anterior partial esophageal dilation to the topographic image of the heart. The image was suggestive of persistence of the right aortic arch, and corrective surgery was indicated but it was not authorized by the tutors. Therefore, conservative dietary treatment was instituted. The animal remained stable for a period of one and a half years. After this period the patient returned with an aggravated condition of vomiting, anorexia and apathy. The same clinical condition was maintained in the chest X-ray. An esophageal flushing was indicated, which was not authorized by the tutors, being prescribed mucosal protector and antibiotic. The medication was maintained by the tutor and after 1 month of the initial care, the clinical condition worsened and the animal died. Case 2. A 6-month-old male Pinscher dog weighing 1 kg was seen with postprandial regurgitation complaint since the beginning of the weaning transition period. In the esophagography performed a compatible radiographic image was seen with a diverticulum of the cranial thoracic esophagus and congenital total megaesophagus. The treatment adopted was conservative. Twelve months after the initial care, the animal presented radiographically resolution of the diverticulum and megaesophagus and was in good health.[...](AU)

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