outcomes of autologous fat injection laryngoplasty in unilateral vocal cord paralysis

introduction: unilateral vocal cord paralysis (uvcp) is not an uncommon finding. several procedures are available to manage glottal insufficiency. we conducted a clinical trial to evaluate the outcome of fat injection laryngoplasty.   materials and methods: liposuctioned lower abdomen fat was injected for augmentation of paralyzed vocal cord in 20 patients with uvcp. autologous fat was harvested with an 18g needle and a 20-ml disposable syringe using a liposuction technique. clinical follow-up after the injection was carried out from 1 to 6–21 months   results: voice and glottal protective function were significantly improved after the surgery. vocal elements were immediately improved after the surgery, and after 1 year of follow-up. conclusion:  fat injection laryngoplasty by liposuction is simple, safe, effective and has a low cost for patients with uvcp with aspiration and breathy voice dysphonia.