目的：探讨经鼻内窥镜下扩展性骨窗伴高位造口行泪囊鼻腔吻合术(DCR)治疗慢性泪囊炎的疗效及安全性。

方法：回顾性临床研究。选取本院2018-01/2020-01确诊为慢性泪囊炎患者50例59眼。根据手术方式分为两组：单纯造口组23例29眼采用经鼻内镜下平中鼻甲腋行DCR(即单纯造口术)，改良组27例30眼采用经鼻内镜下扩展性骨窗伴高位造口行DCR。比较两组患者的临床总有效率、术后并发症发生率以及满意率的情况。

结果：术后12mo，单纯造口组有效率为79%，改良组为97%(P=0.039)。而单纯造口组并发症总发生率为28%，改良组为7%(P=0.042)。且单纯造口组满意率为65%，改良组为93%(P=0.030)。

结论：采用经鼻内镜扩展性骨窗伴高位造口DCR治疗慢性泪囊炎，可提升手术的有效率，降低并发症发生率。

METHODS: Retrospective clinical study. A total of 50 patients(59 eyes)diagnosed with chronic dacryocystitis in our hospital from January 2018 to January 2020 were selected. They were divided into two groups according to the operation method, with 23 cases(29 eyes)in the simple stoma group and 27 cases(30 eyes)in the improved group. Patients in the simple stoma group were treated with transnasal endoscopic flat middle turbinate axillary DCR(simple stoma), and patients in the improved group were treated with transnasal endoscopic extended bone window with high-level stoma DCR. The total clinical efficiency, postoperative complication rate and satisfaction of the two groups were compared.

RESULTS: The effective rate of the simple stoma group was 79% at 12mo after surgery, while that of the improved group was 97%(P=0.039). The total incidence of complications in the simple stoma group was 28%, while that in the improved group was 7%(P=0.042). The satisfaction rate of the simple stoma group was 65%, while that of the improved group was 93%(P=0.030).

CONCLUSION: The treatment of chronic dacryocystitis with transnasal endoscopic extended bone window and high-level ostomy DCR further improved the efficiency of surgery and reduced the incidence of complications.