Using RSI and RFS scores to differentiate between reflux-related and other causes of chronic laryngitis
Braz. j. otorhinolaryngol. (Impr.)
; Braz. j. otorhinolaryngol. (Impr.);89(1): 54-59, Jan.-Feb. 2023. tab, graf
Article
em En
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LILACS-Express
| LILACS
| ID: biblio-1420930
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract Objective:
To establish if the Reflux Symptom Index (RFI) and the Reflux Finding Score (RFC) can help establish the differential diagnosis in patients with distinct causes of chronic laryngopharyngitis.Methods:
A group of 102 adult patients with chronic laryngopharyngitis (Group A - 37 patients with allergic rhinitis; Group B - 22 patients with Obstructive Sleep Apnea (OSA); Group C -43 patients with Laryngopharyngeal Reflux (LPR)) were prospectively studied. Chronic laryngitis was diagnosed based on suggestive symptoms and videolaryngoscopic signs (RSI ≥ 13 and RFS ≥7). Allergies were confirmed by a positive serum RAST, OSA was diagnosed with a positive polysomnography, and LPR with a positive impedance-PH study. Discriminant function analysis was used to determine if the combination of RSI and RFS scores could differentiate between groups.Results:
Patients with respiratory allergies and those with LPR showed similar and significantly higher RSI scores when compared to that of patients with OSA (p < 0.001); Patients with OSA and those with LPR showed similar and significantly higher RFS scores when compared to that of patients with Respiratory Allergies (OSA vs. Allergies p < 0.001; LPR vs. Allergies p < 0.002). The combination of both scores held a higher probability of diagnosing OSA (72.73%) and Allergies (64.86%) than diagnosing LPR (51.16%).Conclusions:
RSI and RFS are not specific for reflux laryngitis and are more likely to induce a false diagnosis if not used with diligence.
Texto completo:
1
Índice:
LILACS
Tipo de estudo:
Etiology_studies
Idioma:
En
Revista:
Braz. j. otorhinolaryngol. (Impr.)
Assunto da revista:
OTORRINOLARINGOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article