Acta Otorrinolaringol Esp. 2012;63(5):364---369 www.elsevier.es/otorrino ORIGINAL ARTICLE The Use of the Mobile Voice Laboratory in the Operating Room During Type I Thyroplasty With Gore-Tex ®, Marco Guzman, a,b,* Crystal Coleman, c Adam D. Rubin, d,e Joseph Belanger, f Cristina Jackson-Menaldi d,g a Lakeshore Professional Voice Center and Department of Otolaryngology, School of Medicine, Wayne State University, Detroit, MI, USA b Professor at School of Communication Sciences, University of Chile, Santiago, Chile c Otolaryngology/Facial Plastic Surgery Resident, POH Regional Medical Center, Pontiac, MI, USA d Lakeshore Ear, Nose and Throat Center, Lakeshore Professional Voice Center, St. Clair Shores, MI, USA e Department of Otolaryngology-HNS, University of Michigan Medical Center, Ann Arbor, MI, USA f Otolaryngology Lakeshore Ear, Nose and Throat Center, Lakeshore Professional Voice Center, St. Clair Shores, MI, USA g School of Medicine, Wayne State University, Detroit, MI, USA Received 29 February 2012; accepted 7 March 2012 KEYWORDS Spectrogram; Mobile voice laboratory; Unilateral vocal fold paralysis; Type I thyroplasty Abstract Introduction and objective: The purposes of this study are to demonstrate the use of the mobile voice lab in type I thyroplasty with Gore-Tex ® using analysis of spectrogram and fundamental frequency in the operating room, and also to show how to do this procedure. Methods: Voice samples were recorded in the operating room immediately before and during type I thyroplasty. Six-week postoperative samples were also taken in the voice laboratory. Fundamental frequency and spectral analysis were analyzed. Spectrograms were evaluated by a blind panel of 4 judges on a 100 mm visual analogue scale. All three time points were compared and statistical analysis performed. Pre and postoperative V-RQOL scores were also compared. Results: Significant improvement in spectrogram ratings were seen between before and during (P < .001), and before and after voice samples (P < .017). There was no significant difference between during and after scores, suggesting the persistence of the intraoperative improve- ment in this measure. Changes in fundamental frequency were not statistically significant, although fundamental frequency tended to increase in women and decrease in men after type I thyroplasty. Mean V-RQOL scores improved from 48.08 to 85.08 (P < .001). Conclusions: The mobile voice laboratory may be useful during type I thyroplasty with Gore- Tex ® . It offers an opportunity for the surgeon and voice pathologist to continue to collaborate in the treatment of patients with unilateral vocal fold paralysis. © 2012 Elsevier España, S.L. All rights reserved.  Please cite this article as: Guzman M, et al. Uso del laboratorio móvil de voz en la sala de operaciones durante tiroplastia tipo I con Gore-Tex ® . Acta Otorrinolaringol Esp. 2012;63:364---9.  Work presented at the 39th Annual Symposium of the Voice Foundation, on June 5th, 2010, Philadelphia, PA, USA. * Corresponding author. E-mail address: guzmanvoz@gmail.com (M. Guzman). 2173-5735/$ – see front matter © 2012 Elsevier España, S.L. All rights reserved. Document downloaded from http://www.elsevier.es, day 30/06/2016. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited.