设计并进行了食管、贲门切除术中应用耐压气囊行幽门扩张的实验和临床研究。结果表明,此法将幽门环形肌纤维拉长,幽门内径增大,减少了胃排空时阻力,有效防止了术后早期胃潴留;且扩张造成的肌纤维损伤能逐渐修复,使幽门功能得到保存。对幽门扩张内径进行了讨论。认为幽门扩张法简便易行,安全可靠,值得推广。 Esophageal and cardiac resections have been designed and performed for experimental and clinical studies of pyloric expansion using pressure-resistant balloons. The results showed that this method will lengthen the pylorus annular fibers, increase the diameter of the pylorus, reducing the gastric emptying resistance, effectively prevent early postoperative gastric retention; and expansion of the muscle fiber damage can be gradually restored, so that the pyloric function is preserved. The inner diameter of pylorus was discussed. It is considered that the pyloric expansion method is simple, safe and reliable and worthy of promotion.