Aerodynamic analysis of voice in persons with laryngopharyngeal reflux

Radish Kumar Balasubramanium, Jayashree S. Bhat

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Objectives of the study: The individuals with laryngopharyngeal reflux are prone for aspiration of refluxed contents and so there is a need for aerodynamic evaluation in these individuals. Hence, the present study investigated the aerodynamic characteristics in individuals with Laryngopharyngeal reflux. Study design: Prospective control group design. Method: Thirty laryngopharyngeal reflux subjects and 30 normal subjects participated in the study. Aerodynamic parameters such as vital capacity, mean air flow rate, maximum phonation duration and phonation quotient were measured using Aero Phone Instrument ((Model 6800). Independent t test was employed for statistical inference. Results: The results revealed that the vital capacity and maximum phonation duration values were lower for laryngopharyngeal reflux subjects when compared to normal controls. No significant differences were observed for mean air flow rate and phonation quotient. Conclusions: The results revealed that the laryngopharyngeal reflux individuals showed significant deviations in aerodynamic parameters when compared to normal individuals. Thus study confirms aerodynamic abnormalities in laryngopharyngeal reflux subjects.

Original languageEnglish
Article number5
JournalOnline Journal of Health and Allied Sciences
Issue number4
Publication statusPublished - 10-2008

All Science Journal Classification (ASJC) codes

  • Medicine(all)


Dive into the research topics of 'Aerodynamic analysis of voice in persons with laryngopharyngeal reflux'. Together they form a unique fingerprint.

Cite this