Mesallam TA, Malki KH, Farahat M, Bukhari M, Alharethy S. Folia Phoniatr Logop. 2013;65(6):280-7.
OBJECTIVES: There is a lack of consensus regarding the clinical presentation and diagnosis of laryngopharyngeal reflux (LPR). The aim of this study was to explore voice-related abnormalities in a group of LPR patients, diagnosed with a 24hour oropharyngeal pH-monitoring.
RESULTS: Significant differences were found between the two groups for RSI and VHI10. No significant differences were found between the two groups regarding clinical presentation, RFS or acoustic measures. Significant positive correlations were found between the Ryan composite measurements and both severity ratings (VHI10, RSI).
CONCLUSION: LPR clinical presentation appears to be nonspecific in terms of symptoms and laryngeal findings. LPR appears to have an effect on the patients' self-perception of voice problems. Further studies are needed to clarify the effect of LPR on acoustic measurements.