Open AccessValidation of a symptom-score questionnaire and long- term results of endoscopic dacryocystorhinostomy
Author(s) -
Elina Penttilä,
Г. А. Смирнов,
Juha Seppä,
Henri Tuomilehto,
Hannu Kokki
Publication year - 2014
Publication title -
rhinology (amsterdam. online)/rhinology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.275
H-Index - 57
eISSN - 1996-8604
pISSN - 0300-0729
DOI - 10.4193/rhino13.041
Subject(s) - medicine , dacryocystorhinostomy , nasolacrimal duct obstruction , prospective cohort study , predictive value , otorhinolaryngology , odds ratio , cronbach's alpha , nasolacrimal duct , surgery , psychometrics , clinical psychology
Background: Endoscopic dacryocystorhinostomy (EN-DCR) is a commonly used procedure in the treatment of nasolacrimal duct obstruction (NLDO). However, there is no generally accepted disease-specific questionnaire for assessing outcomes. Methodology: We conducted a prospective study to initially validate a Nasolacrimal Duct Obstruction Symptom Score questionnaire(NLDO-SS) and to evaluate the long-term success of EN-DCR procedures. Seventy-six patients (86 eyes) were evaluated in follow-up visits at 1-8 years after EN-DCR. The patients completed the NLDO-SS questionnaire twice, first, at home and, second,after receiving information from the otorhinolaryngologist, during the visit. The surgical outcome was considered successful if the irrigation succeeded and if the patient symptoms were relieved as assessed with the NLDO-SS. Results: The diagnostic accuracy of the NLDO-SS was 84%, sensitivity 82%, specificity 85%, positive predictive value 58%, negative predictive value 95%, odds ratio 26, risk ratio 11 and usefulness index 0.55. Cronbach's alpha was 0.85, and the test-retest reliability coefficient was 0.87. The long-term success rate after EN-DCR was 79%. Conclusion: The NLDO-SS iss a feasible clinical tool in assessing the success of EN-DCR. The success rate was found to decrease EN-DCR at long-term follow-up.