Investigation of dependability of laryngopharyngeal reflux and disorders of phonation / 临床耳鼻咽喉头颈外科杂志

ABSTRACT

OBJECTIVE@#To investigate the voice features of laryngopharyngeal reflux (LPR), and analyze the effects of LPR to the life qualities of patients. To analyze the dependability between objective and subjective ways.@*METHOD@#One hundred and ninety-six of the patients who were suspected of LPR were received the surveys of general state, electronic nasopharyngolaryngoscope, evaluation of the reflux symptom index (RSI) and the reflux finding score (RFS). One hundred of patients whose RSI>13, RFS>7 were diagnosed as LPR and were received evaluation of voice handicap index (VHI), analysis of vocal acoustics and examination of glottogram.@*RESULT@#The funda mental frequency included male and female depressed,the perturbation of fundamental frequency, the perturbation of amplitude and normalization noise energy increased. Differences were statistically significant (P0.05). Physiology, function and emotion had correlations in LPR.@*CONCLUSION@#From the analysis of vocal acoustics and examination of glottogram,we knew that vocal function was effected because the vocal cord was injured by LPR. The fundamental frequency depressed and the vibrations of vocal cords were not instability, glottis wasn't closed up well and contact time was depressed. Patients who had the reflux symptoms uncertainty had the reflux findings.