Читать книгу Small Animal Surgical Emergencies - Группа авторов - Страница 189
Introduction
ОглавлениеIntussusception of the digestive tract is the telescoping or invagination of a portion of the viscus into the lumen of an adjacent section of the tract. It occurs in both canine and feline patients. The portion that becomes entrapped is referred to as the intussusceptum, and the portion of bowel that receives the telescoping segment is known as the intussuscipiens. Intussusception may involve most parts of the digestive tract and has been documented to involve the esophagus, the stomach, and the intestinal tract. The most common type of intussusception has been reported as ileocolic [1, 2] in dogs and jejunojejunal in cats [3]. Double intussusception has been reported in dogs [4, 5]. Many conditions have been associated with intussusception, including motility dysfunction, enteritis, infection (viral, bacterial or parasitic), foreign bodies, previous surgery, adhesions, or neoplasia [2, 3, 6]. Often, no predisposing cause can be identified [2, 7]. Gastroesophageal intussusception has been reported to occur most commonly in young German Shepherd dogs (33% dogs in one study) and has been associated with esophageal dilation or megaesophagus [8]. Advanced imaging may be required to confirm a diagnosis and after appropriate emergency stabilization, surgical intervention is usually indicated.