Fig. 3.

Serial changes in injected plasma gel in patients with unilateral vocal palsy. This patient was treated for left vocal cord palsy. (A) Left vocal cord palsy. The vocal cord did not move symmetrically. The vocal cord did not close and the voice was husky. (B) One month after injection, the left vocal cord became straightened, the color was slightly yellow, and the vocal cord closed completely. (C) Three months after injection, the glottis gap was re-developed, but was not wider than pre-injection status. (D-G) Changes in maximum phonation time and vocal acoustics after injection laryngoplasty with plasma gel. NHR, noise to harmony ratio; OP, operation.