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Revista de otorrinolaringología y cirugía de cabeza y cuello

versión On-line ISSN 0718-4816

Resumen

LANAS V, Andrés; GUTIERREZ C, Catalina; MARDONES P, Rodrigo  y  LARRAIN B, Catalina. Intracordal inyection of mesenchymal stem cells in scarred vocal folds: Preliminary report. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2015, vol.75, n.2, pp.96-105. ISSN 0718-4816.  http://dx.doi.org/10.4067/S0718-48162015000200003.

Introduction: Stem cells are unspecialized cells in the body capable of developing into specialized cells with specific functions workingas a repair system. Mesenchymal stromal cells (MSC) are the most currently used. Scarred vocal folds cause severe voice problems. Nowadays there is no therapy that can successfully treat this condition. Aim: Evaluate the results of intraoperative and intralesional injection of autologous MSCs in the repair and healing process of chronic scarred vocal folds in patients with prior failure to usual therapies. Material and method: Prospective pilot study that includes three patients. MSCs were isolated and expanded from bone marrow taken from the Iliac crest of the patients. In a second stage, fibrosis resection was performed under direct laryngoscopy, and MSCs were injected intralesionally. Patients were followed up using videostroboscopy. Results: There were no complications after iliac crest puncture or laryngeal injection. Vocal fold vibration appeared in all 3 patients, with significant improvement in voice quality in two of them. Conclusions: Local injection of mesenchymal stromal cells appears to be a promising alternative in management of scarred vocal fold with minimal discomfort for the patient. Further studies are needed.

Palabras clave : Mesenchymal stromal cells; scarred vocal folds; intracordal injection.

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