目的：观察鼻内窥镜下行泪囊鼻腔吻合术后，置入一种新型多功能泪道支架治疗鼻泪道阻塞的近期及中期疗效，并评价其临床应用价值。

方法：回顾性系列病例研究。对76例79眼鼻泪道阻塞患者行泪囊鼻腔吻合术后，置入多功能泪道支架，术后2～3mo拔管，拔管后随访3～6mo。

结果：患者79眼中，成功植入支架77眼，手术成功率为97.5%； 术后2～3mo全部成功拔管，拔管后随访3～6mo； 不溢泪、泪道冲洗畅通60眼； 溢泪症状改善、泪道冲洗部分返流15眼，总有效率为97.4%，2眼未愈； 术后未发生支架移位脱落等并发症，吻合口均上皮化良好。

结论：该多功能泪道支架具有手术方法简单快捷、并发症少、恢复快等优点，能大大提高鼻内镜下泪囊鼻腔吻合术的成功率和适用范围，是一种安全、有效治疗鼻泪道阻塞的新方法。

AIM: To observe the reliability and short-term and mid-term efficacy of a new designed multi-functional lacrimal sac nasal drainage stent on the treatment of nasolacrimal duct obstruction after endonasal endoscopic dacryocystorhinostomy(EES-DCR), and to evaluate its clinical application value.

METHODS: A retrospective case series study was carried out. Seventy-six patients(79 eyes)with nasolacrimal duct obstruction underwent EES-DCR and a new type of multi-functional lacrimal sac nasal drainage stent was implanted. The nasal lacrimal drainage stent was pulled out 2～3mo later after surgery and the patients received 3～6mo follow-up afterwards.

RESULTS: In 79 eyes, stents were successfully implanted in 77 eyes(97.5%). All stents of 77 eyes could be pulled out successfully 2～3mo after the operation. Sixty eyes were cured with unobstructed lacrimal irrigation and symptom of epiphora disappeared; 15 eyes were improved of epiphora and mild reflux during lacrimal irrigation were found, overall effective rate was 97.4%, 2 eyes failed in stent implantation. In 6mo follow-up, nocomplications such as stent displacement or slip was occurred, the epithelization of anastomotic stoma was good.

CONCLUSION: Surgical technique of using the multi-function nasolacrimal stent is simple and fast, and implantation of the new designed stents has a rapid recovery with fewer complications. The usage of the new stents not only improves the success rate but also broadens surgical indications of EES-DCR, it is a safe and effective method for the treatment of nasolacrimal duct obstruction.

湖南省科技厅科技计划项目(No. 2012WK4006)