AIM: To explore the effect of nasal septum deviation(NSD)on the curative effect of endonasal endoscopic dacryocystorhinostomy(EES-DCR).

METHODS: Totally 84 patients(84 eyes)who have been diagnosed with chronic dacryocystitis in our hospital from June 2017 to May 2019 were collected and then the patients were divided them into two groups according to whether NSD existed through the preoperative nasal endoscopy. Group A included 42 patients(42 eyes)who had no NSD while Group B included 42 patients(42 eyes)who had NSD(mild or moderate). The EES-DCR was performed under general anesthesia in both groups. The preoperative treatment indexes, evaluative efficacy after 6mo follow up and nasal adhesion were compared between the two groups after operation.

RESULTS: The operation time and intraoperative blood loss of group B(69.9±13.1min, 51.8±16.4mL)exceeded group A(53.4±11.7min, 24.9±12.0mL)respectively(P<0.05), while the hospitalization time between two groups showed no difference(P>0.05). Follow up for 6mo: the effective rate of group A was 86% while group B was 71%(P>0.05); No nasal adhesion was found in group A while 12% incidence existed in group B, with no difference between the two groups(P>0.05).

CONCLUSION: Patients who have chronic dacryocystitis combined with mild or moderate NSD do not need to perform a septoplasty simultaneously if the symptom does not accompany by nasal dysfunction. Only by performing the EES-DCR can achieve a quite good result.