Functional outcome and quality of life index after endonasal versus external dacryocystorhinostomy

To compare the functional outcome and quality of life (QOL) index following non-endoscopic endonasal dacryocystorhinostomy (NEN-DCR) and external dacryocystorhinostomy (EXT-DCR).

Patients were prospectively allocated to two groups. All adult patients presenting with primary nasolacrimal duct obstruction (PANDO) undergoing EXT-DCR and NEN-DCR at a tertiary eye care center were included. Patients in one group underwent EXT-DCR and others NEN-DCR. Functional outcomes were measured by Munk Score and fluorescein dye disappearance test (FDDT). A validated quality of life questionnaire (EQ-5D-3L) in the local language (Odiya) was used to measure health status (social impact score) before and 1 day, 2 weeks, 6 weeks, and 3 months after surgery. The primary outcome measure was the functional outcome-Munk Score and secondary outcome measures included the QOL index and the FDDT.

A total of 110 patients were recruited and equally distributed ( n = 55) in both groups. The mean age of the population was 47.6 years (SD = 14.02; range 20-79 years). The majority (71%, 79/110) were female. When longitudinally followed over time, functional outcome and QOL index showed reasonably rapid and marked improvement in both groups after surgery compared to baseline scores. The Munk score ( P = 0.037) and QOL index ( P = 0.007) were marginally better on the first postoperative day for the NEN-DCR group compared to EXT-DCR but comparable at all subsequent visits. At a median follow-up of 9 weeks (range: 0.5-24 weeks), the anatomical outcome was comparable between both groups.

Our results demonstrate that functional outcome and QOL index show rapid and marked improvement in both NEN-DCR and EXT-DCR after surgery. NEN-DCR outcomes were marginally better on the first postoperative day but comparable to EXT-DCR thereafter.