ステント療法の現況

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  • Recent Advances in Stent Therapy.

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Recently, endprostheses have been used for the treatment of malignant stricture in thedigestive organs. There are two kinds of prosthesis, namely plastic prosthesis and expan-dable metallic stmt (GEMS). As the results of improvement in the material and structureof EMS, which was developed to treat arterial stenosis, scenting became to be appliedwidely for stenotic lesions in the digestive organs, such as the bile duct, digestive tract, tracheobronchus and portal vein. We summarized 24 cases of rnalignant and 20f benign stricture of the bile duct, 340fmalignant esophageal stricture, 10f pyloric stricture, 90f tracheobronchial stricture, 40fmalignant stricture in the portal vein and 30f portal hypertension treated by stenting. Theresults and issues to be resolved were discussed. The scent therapy had an excellent effect tc obtain patency against malignant stricturein the digestive ergans. However, to maintain patency, ether procedures such as chemo-therapy and radiation is to be considered combined with EMS. The usefulness of the stentshould be Carefully evaluated because the results of its long-term observation is notsufficient so far.

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