Читать книгу Veterinary Surgical Oncology - Группа авторов - Страница 80

Obstruction of the biliary tree can occur from both primary hepatobiliary disease as well as external compression from other abdominal neoplasia (Moss et al. 2007; Lee 2009). While surgical bypass and the placement of both plastic and metal stents have been described in human patients, the endoscopic placement of metal stents is considered the treatment of choice (Moss et al. 2007; Lee 2009). However, metal stents can become occluded, and research toward developing drug‐eluting stents to prevent occlusion and to deliver local chemotherapy is being conducted (Lee 2009). Biliary stenting (using red‐rubber catheters) for relief of benign obstructions (mostly pancreatitis) in dogs and cats has been described (Mayhew et al. 2006; Mayhew and Weisse 2008); however, reports on the treatment of malignant obstructions with stents are lacking. In the author’s practice, biliary stents have been placed for malignant obstructions extending from the common bile duct into the duodenum to allow for bile drainage. The stents have been placed surgically; however, investigation into minimally invasive options is underway.