RESUMO
Objective To explore the common complications and methods of treatment in the malignant obstruction of upper alimentary tract with stent insertion. Methods With interventional procedure under fluoroscopic guidance fourteen self expanding stents were implanted in twelve patients, including nine with strictures or obstructions of esophagus, three with obstructions of gastroduodenum. Of the fourteen, nine were coated stents and five were uncoated stents. Results All stents were implanted successfully, but complications after the procedure occurred sometimes. There complications included: 1. Food bolus obstructed in three patients. 2. Chest pain occurred in four patients. 3. Tumour overgrowth or hyperplasia of granulation tissue in three patients caused restenosis of gastrointestinal tract. 4. Stent replacement in three patients. 5. Hemorrhage occurred in two patients (over 300 ml) causing threat to life. Conclusions The implantation of self expanding stent is a simple and effective method offering good palliation for upper alimentary tract obstructions. The complications shoud be treated correctly.