Objective: This study prospectively assessed the efficacy and safety of 532-nm diode laserglottoplasty in patients with sulcus vocalis.
Method: A prospective human trial was performed from August 2016 to September 2021 at Soonchunhyang University, Bucheon, Korea; 532-nm diode laserglottoplasty was performed in 30 consecutive patients with sulcus vocalis who suffered from voice problems. Patients underwent acoustic aerodynamic, perceptual, stroboscopic, and Voice Handicap Index-10 (VHI-10) evaluations before and 1, 6, and 12 months after laser glottoplasty.
Results: Most subjective parameters showed significant improvement (P < 0.05) at 6 months after laser glottoplasty and remained stable at 12 months. Most objective parameters showed significant improvement (P < 0.05) at 12 months after laser glottoplasty. Complications during follow-up included mild vocal fold vibration reduction in 3.3% of patients (1/30) and persistent vocal fold edema in 3.3% of patients (1/30)
Conclusion: Statistically significant voice improvement at 12 months after 532-nm diode laserglottoplasty was achieved without serious complications