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Objective: To determine the prevalence of laryngopharyngeal reflux (LPR) in patients with voice disorders and to find out the efficacy of reflux symptom index (RSI) and reflux finding score (RFS) in the diagnosis. Methods: This prospective analytical study was conducted on 554 patients who presented with dysphonia and symptoms sus picious of LPR. They were then subjected to clinical work up based on symptomatic history based RSI and video strobo scopic RFS scoring criteria. The results were analyzed statistically. The differences between RSI and RFS were calcu­ lated by Fisher’s two sided test and the comparison between the two is calculated using kappa statistics to check the strength of agreement. Results: Among 554 patients, 457 (82.4%) patients were diag nosed to have LPR based on RSI score of more than 13. Among 448 (80.8%) patients RFS score was positive. Vocal nodule (23.64%), laryngitis (22.38%) and the vocal polyp (20.03%) constitute the majority, with a female preponderance in vocal nodule. Both RSI and RFS were poor or almost absent in conditions such as spasmodic dysphonia, tremors, vocal cord palsy, hemorrhage, functional aphonia and traumatic con ditions. The Pearson correlation coefficient showed a good correlation and agreement between RSI and RFS was statis­ tically significant. Conclusion: The association of LPR in patients with voice disorders is significantly high. The RSI and RFS based clinical diagnosis is reliable and valid in the diagnosis of LPR as revealed in our study.

Laryngopharyngeal Reflux in Dysphonics—Understanding the Significance and the Efficacy of Clinical Diagnosis: A Case-based Study