对30例食管及贲门癌术后并发吻合口狭窄患者，采用SK-90食管贲门狭窄扩张器经内镜扩张治疗获得满意疗效。平均每人扩张2．27次，经扩张显效20冽（66．7％），有效7例（23．3％），总有效率为90％。无并发症发生。随访6～60个月，20例健在，10例死于术后复发．70％以上可进半流质。认为：手术操作技术不当是导致吻合口狭窄的主要因素；诊断吻合口狭窄主要依据梗阻症状、胃镜及钡餐检查；吻合口狭窄宜早期扩张；严格操作规程和熟练的扩张及内镜技术是避免出血、穿孔等并发症的关键。 For patients with anastomotic stenosis complicated by postoperative esophageal and cardiac cancer, SK-90 esophageal cardiac stenosis dilators were used for endoscopic dilation to achieve satisfactory results. The average person’s expansion was 2.27 times. After expansion, the effect was markedly improved by 20 冽 (66.7%), and effective in 7 cases (23.3%). The total effective rate was 90%. No complications occurred. During follow-up of 6 to 60 months, 20 patients were alive and 10 patients died of postoperative recurrence. More than 70% can enter semi-liquid. It is believed that the improper operation technique is the main factor leading to anastomotic stenosis; diagnosis of anastomotic stenosis is mainly based on obstructive symptoms, gastroscopy and barium meal examination; anastomotic stricture should be expanded early; strict operating procedures and skilled expansion and endoscopic techniques are to avoid bleeding The key to complications such as perforation.