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: ln 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. ln 6mo follow-up, nocomplications such as stent displacement or slip was occurred, the epithelization of anastomotic stoma was good.CONCLUSlON: 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.%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2~3 mo拔管,拔管后随访3~6 mo。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2~3 mo全部成功拔管,拔管后随访3~6 mo；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。
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