CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2021; 25(01): e115-e122
DOI: 10.1055/s-0040-1702967
Original Research

Evaluation of the Reflux Symptom Index and the Endolaryngeal Findings Scale after Treatment in Individuals with Laryngopharyngeal Reflux

1  Amazonas State University, Manaus, AM, Brazil
2  Otorhinolaryngology Department, Medical Sciences College, Santa Casa de São Paulo, São Paulo, SP, Brazil
1  Amazonas State University, Manaus, AM, Brazil
1  Amazonas State University, Manaus, AM, Brazil
3  Otorhinolaryngology and Cervical-facial Surgery at the Adriano Jorge Hospital Foundation, Manaus, AM, Brazil
› Institutsangaben


Introduction Laryngopharyngeal reflux (LPR) is a prevalent condition in outpatients visiting the otorhinolaryngological clinic, with many controversies regarding its diagnosis and follow-up. Therefore, there is a need for clinical instruments that can diagnose individuals and monitor the results of their treatment.

Objective To evaluate the applicability of the scores translated and adapted to Brazilian Portuguese: Reflux Symptom Index (RSI) and Endolaryngeal Reflux Findings Scale (ERFS), as instruments for post-treatment follow-up of LPR.

Method A total of 35 individuals with atypical symptoms of gastroesophageal reflux disease and with an objective diagnosis of LPR, confirmed by high digestive endoscopy and 24-hour esophageal pH-metry dual probe test were submitted to the RSI and ERFS questionnaires, used in the pre- and post-treatment of 90 days with a Proton Pump Inhibitor.

Result The evaluation of RSI and ERFS in the pre- and post-treatment showed a reduction in the results of the two scores, with a higher drop in the RSI (p < 0.001) than in the ERFS (p = 0.014). Although there was an improvement in the values in 23.9% of the individuals in the ERFS, there was no change in the category (p = 0.057), different from the RSI (p < 0.001), where there was a 67.4% improvement in values, as well as change in category (score went from positive to negative). There was a correlation between RSI and ERFS, moderate in the pretreatment and strong in the post-treatment.

Conclusion The RSI and ERFS scores, when translated and adapted for Brazilian Portuguese and applied simultaneously, can be considered a good tool for post-treatment LPR follow-up.


Paper presented at: 48th ABORL-CCF Congress; October 31st to November 3rd, 2018, João Pessoa, state of Paraíba, Brazil.


Eingereicht: 28. Juni 2019

Angenommen: 15. Dezember 2019

04. Mai 2020 (online)

© 2020. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (

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