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Radiology, Vol 182, 697-701, Copyright © 1992 by Radiological Society of North America

ARTICLES

Malignant biliary obstruction: treatment with expandable metallic stents--follow-up of 50 consecutive patients

RL Gordon, EJ Ring, JM LaBerge and MM Doherty
Department of Radiology, University of California, San Francisco 94143.

A consecutive series of 50 patients with malignant biliary obstruction were treated by means of palliative drainage with a metallic expandable stent. Stent placement was successful in all patients. The patients were followed up prospectively at 2-month intervals over a period of 9- 22 months. Forty-one patients (82%) died; nine (18%) are still living. The overall patency and survival rates for the 50 patients were 5.8 months and 7.5 months, respectively. The 30-day mortality rate was 8% (n = 4), the minor complication rate was 18% (n = 9), and the major complication rate was 8% (n = 4). One patient (2%) had intrahepatic arterial bleeding that required embolization, one (2%) had a right subphrenic abscess, and two patients (4%) had transient septic events. Stent occlusion requiring a second intervention occurred in 24% of patients (n = 12). Excellent palliation was achieved in most patients. No stent migration occurred. No great clinical advantages in prolonged patency compared with those of other published series involving the use of plastic stents were demonstrated. Ease of placement and versatility may offset the high cost of the stent.


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