Effect of Proton Pump Inhibitor on the Outcome of Laryngeal Microsurgery in Patients With Vocal Fold Mucosal Disease With Reflux Symptoms

Objectives. To evaluate the effect of proton pump inhibitor (PPI) after laryngeal microsurgery (LMS) in patients with benign vocal fold (VF) mucosal disease and in patients with overt reflux symptom according to subjective and objective voice assessment. Methods. The improvement of voice handicap index-10 (VHI-10) score, reflux symptom index (RSI) score, grade, roughness, breathiness, asthenia, and strain (GRBAS) score, Jitter, Shimmer, noise to harmonics ratio (NHR), maximum phonation time of acoustic voice analysis Results. A total of 47 patients (PPI group [ n = 24] and non-PPI group [ n = 23]) completed the study. The scores for VHI-10, RSI, GRBAS, and acoustic parameters significantly improved in both groups after surgery. In the subgroup analysis of patients with overt reflux symptoms (RSI >= 13; non-PPI group [ n = 12], PPI group [ n = 15]), significant between-group differences were observed in terms of the improvement in NHR and the strain factor. Conclusion. Postoperative PPI administration in patients with VF benign mucosal disease with reflux symptoms might improve subjective and objective voice outcomes after LMS.