Objectives To analyze the long-term objective, perceptive, and subjective outcomes after endoscopic polydimethylsiloxane (PDMS) injection laryngoplasty in unilateral vocal fold paralysis. Study design A retrospective study carried out between January 2008 and January 2012. Setting Head and Neck Department, University Hospital of Modena, Modena, Italy. Methods This was a retrospective analysis of 26 patients with unilateral vocal fold paralysis who underwent endoscopic injection of PDMS under general anesthesia. A voice evaluation protocol was performed for all patients, which included videolaryngostroboscopy, maximum phonation time, fundamental frequency, analysis of the harmonic structure of the vowel /a/ and the word /aiuole/, Grade of Dysphonia, Instability, Roughness, Breathiness, Asthenia, and Strain scale, and Voice Handicap Index. The protocol was performed before surgery, in the immediate postoperative period, and at least 3 years after surgery. The mean follow-up period was 73 months (range 39–119 months). Results The statistical analysis showed a significant improvement (P < 0.01) for all of the objective, perceptive, and subjective parameters by comparison between the preoperative and long-term follow-up data; moreover, no statistically significant difference was found between the postoperative and long-term follow-up data. This indicates that injection laryngoplasty with PDMS guarantees long-lasting effects over time. No complications were reported in our series. Conclusion Injection laryngoplasty with PDMS can be considered to be a minimally invasive and safe technique for the treatment of unilateral vocal fold paralysis. Moreover, it allows very good and stable results to be obtained over time, avoiding repeated treatments and improving the quality of life of the patients.

Polydimethylsiloxane Injection Laryngoplasty for Unilateral Vocal Fold Paralysis: Long-Term Results / Mattioli, Francesco; Bettini, Margherita; Botti, Cecilia; Busi, Giulia; Tassi, Sauro; Malagoli, Andrea; Molteni, Gabriele; Trebbi, Marco; Luppi, Maria Pia; Bergamini, Giuseppe; Presutti, Livio. - In: JOURNAL OF VOICE. - ISSN 0892-1997. - 31:4(2017), pp. 517-517.e7.

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