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常用的探条扩张术无法解决长而不规则的严重食管狭窄问题。作者们结合自己的临床实践,推荐使用Grüntzig氏气球导管,该导管曾成功地用于解除胆道和输尿管阻塞。经改用于扩张食管,同样取得了良效。气球是用聚乙烯制成,位于导管顶端。由于气球的顺应性小,在60～90磅/英寸~2压力下,便可吹张至最大直径;若气球内压力超过上述数值,气球便自行破裂,从而减少了食管穿孔的可能性。此外,气球导管产生的只是径向力,而一般的探条扩张子则产生切力和纵向力,所以前者自然比后者更为安全。气球导管使用时,需先借助于稀钡餐透视,在X线指引下将带有可曲头端的引线纳入食管并使通过狭窄处,然后将气球导管顺着引线向下推进,待导管进入胃内时,即充气至4mm直径,随即放气,逐渐回抽导管。在退至狭窄区时,再反复充气、
Commonly used probe dilation can not solve the long and irregular serious esophageal stricture. In combination with their own clinical practice, the authors recommend the Grüntzig balloon catheter, which has been successfully used to relieve biliary and ureteral obstruction. Transferred for the expansion of the esophagus, also made good effect. Balloon is made of polyethylene, located at the top of the catheter. Due to the small compliance of the balloon, the balloon can be blown up to its maximum diameter at 60-90 psi. If the balloon pressure exceeds the above value, the balloon ruptures itself, reducing the possibility of esophageal perforation. In addition, the balloon catheter produces only radial forces, whereas the general probe dilatancy produces shear and longitudinal forces, so the former is naturally safer than the latter. The use of balloon catheter, the first need to resort to the barium meal perspective, under the guidance of X-ray will be with the tip of the lead into the esophagus and through the narrow place, and then the balloon catheter down the lead to advance until the catheter into the stomach When, that inflated to 4mm diameter, then deflated, gradually withdrawing catheter. In retreat to the narrow area, and then repeatedly inflated,