AIM: To discuss the feasibility and effectiveness of a new surgical method of endoscopic dacryocystorhinostomy(EES-DCR)in simple chronic dacryocystitis patients, in which, a new self-made lacrimal sac nasal drainage stents inserted in the stoma and a nasal mucosa flap attached to the anterior wall of the anastomotic stoma.

METHODS: Consecutive 30 cases of simple chronic dacryocystitis underwent OK EES-DCR surgery, surgical operation in the traditional methods had the following major improvements: after stoma was finished, cut off most of the nasal mucosa flap, attached to the anterior wall of the stoma and a new silicone material lacrimal sac nasal drainage stents that made by ourselves placed in the stoma, making nasal mucosa flap closely phase with anterior wall of anastomotic stoma. After the surgery, regular washing of lacrimal was made, observed the stoma with nasal endoscopy, including the survival of transplanted nasal mucosa, the place of the nasal lacrimal drainage stent, whether anastomotic patency, epithelialization of the tissue surrounding the stoma. Pulled out the nasal lacrimal drainage stent after 1 month and followed up to 3 to 6 months later.

RESULTS: All 30 operations were successfully completed. The operation time ranged from 18 minutes to 55 minutes, an average of 32.3±8.7minutes. Postoperatively, the transplanted nasal mucosa of all patients successfully survived, wound healing formation, fistula were patent, there was no complications such as proliferation of granulation tissue blocked the transition ostomy mouth, artificial stent displacement or incarceration.

CONCLUSION: Self-made silica lacrimal sac nasal drainage stents placed in the stoma combining nasal mucosa flap attached to the anterior wall not only improve the success rate of the operation of EES-DCR, and reduce post-operative nursing, which is a simple, effective, safe and efficient endoscopic dacryocystorhinostomy under the new method.