Abstract— Dacryocystorhinostomy (DCR) is a commonly applied surgical technique to treat nasolacrimal pathway obstruction. However, no disease-specific tools to assess the symptoms and the subjective outcome after DCR have been established. A specific Nasolacrimal Duct Obstruction Symptom Score (NLDO-SS) questionnaire was develop to evaluate the outcome and tested it in a prospective. Primary endoscopic dacryocystorhinostomy (EN-DCR) procedures were performed in 60 patients during 2013-2014. Preoperatively and during the three follow-up (3 month, 6 months and 12 months ) visits, the patients were asked to fill the NLDO-SS along with Glasgow Benefit Inventory (GBI) questionnaire. The success rate of EN-DCR was 91.67%. EN-DCR resulted in a significant reduction in all of the eight symptoms scores of the NLDO-S. The GBI scores indicated a benefit at 3 months and more benefit at 6 months, but no further improvement was found between 6 and 12 months. The correlation between the total GBI and NLDO-SS was significant. EN-DCR improves the quality of life as measured by the GBI. The NLDO-SS correlated with the GBI and gave more information about the benefits after EN-DCR than GBI alone. The NLDO-SS proved to be an effective tool to evaluate lacrimal obstructions and ENDCR benefits.
Keywords: Endoscopic Dacryocystorhinostomy, Nasolacrimal Duct Obstruction Symptom Score (NLDO-SS), Glasgow Benefit Inventory (GBI), Quality Of Life.
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