Endoscopic endonasal dacryocystorhinostomy: impact of long-standing disease on surgical outcomes

Purpose: To assess whether the duration of disease may influence the surgical success of Endonasal Endoscopic DCR (EE-DCR) in patients affected by nasolacrimal duct obstruction (NLDO). Methods: Single-center observational retrospective analysis on EE-DCR via posterior trans-ethmoidal approach. Consecutive patients were enrolled in 2021-2024 and evaluated with proper questionnaires; resolution of epiphora and dacryocystitis were analyzed after 1 (T1) and 6-months (T2) from surgery. Surgical success was defined as anatomical (patency at irrigation, no recurring dacryocystitis) or complete (zeroing of Munk score). Also, patients were asked to complete the Hospital Anxiety and Depression Scale (HADS) at each timepoint. The sample was divided based on the duration of disease (group A: ≤ 24 months, group B: > 24 months). Results: Ninety-one patients were included. At baseline no differences were observed between the two groups. At both timepoints, Munk score was significantly lower in Group A compared to Group B, while a difference in dacryocystitis rate was observed only at T2. Anxiety scores differed significantly at T2, although no differences were observed for depression. At paired analysis, all groups improved significantly at T1 compared to baseline, whereas no further improvement was observed between T2 and T1. A significantly higher improvement was observed in group A for the Munk and HADS-A scores over timepoints, whereas there was no significance for dacryocystitis rate and HADS-D. Also, group A showed a higher complete success rate compared to group B (p = 0.041). Finally, linear regression confirmed a positive relationship between Munk and anxiety scores and the duration of disease at T2. Conclusions: Our findings showed that long-lasting NLDO symptoms may be associated with worse EE-DCR surgical outcomes.