Cross‐Linked Hyaluronan Used as Augmentation Substance for Treatment of Glottal Insufficiency: Safety Aspects and Vocal Fold Function

Abstract

The results showed that both hylan B gel and collagen can be safely used for injection treatment of glottal insufficiency. Both treatments resulted in significantly improved voice as rated by the patients. However, the patients treated with hylan B gel showed better vocal fold status and longer maximum phonation time at 12 months after treatment as compared with patients treated with collagen.