Assessment for laryngopharyngeal reflux
All patients answered the RSI question independently(8) and underwent 70-degree angled endoscopy to assess the laryngeal findings utilizing the RFS tool (9). The recorded endoscopy video was reviewed and scored by two ORL specialists independently and the main assessor repeated the scoring 8 weeks later. LPR is diagnosed if patients had an RSI of more than 13 and RFS of more than 7(8,9). Inter-observer and intra-observer reliability for RFS score were then analyzed.