Materials and methods 69 placement were placed using two stents of material in 63 cases of benign or malignant esophageal stenosis, of which stainless steel stent (n = 19), home - made nitinol stent (n = 50) .

• 方法:本组63例食管良、恶性狭窄；使用2种支架材料；共安放69根；其中不锈钢支架19根、镍钛合金支架50根.