Palliative Portal Vein Stent Placement in Malignant and Symptomatic Extrinsic Portal Vein Stenosis or Occlusion

This article evaluates the results of portal vein (PV) stent placement in patients with malignant extrinsic lesions stenosing or obstructing the PV and causing symptomatic PV hypertension (PVHT). Fourteen patients with bile duct cancer (n=7), pancreatic adenocarcinoma (n=4), or another cancer (n=3) underwent percutaneous transhepatic portal venous stent placement because of gastroesophageal or jejunal varices (n=9), ascites (n=7), and/or thrombocytopenia (n=2). Concurrent tumoral obstruction of the main bile duct was treated via the transhepatic route in the same session in four patients. Changes in portal venous pressure, complications, stent patency, and survival were evaluated. Mean±standard deviation (SD) gradient of portal venous pressure decreased significantly immediately after stent placement from 11.2mmHg±4.6 to 1.1mmHg±1.0 (P