Abstract

The goal of this study was to introduce two novel techniques in phonomicrosurgery, air injection (AIR), and transillumination (TI), to improve the diagnosis and surgical excision of pathological tissue in vocal folds during suspension laryngoscopy while preserving the healthy tissue as much as possible. Prospective clinical case series. Thirty-four patients with benign vocal cord lesions who underwent phonomicrosurgery between January 2016 and May 2017 were evaluated. Pre- and intraoperative recordings were evaluated by three experienced laryngologists. Stroboscopic video images taken during the preoperative diagnosis and interoperative video recordings made before and after AIR and TI were performed were reviewed and compared. During the preoperative evaluation, the surgeons declared their surgical plans and noted changes while observing the intraoperative evaluation during AIR and TI. Sixty-eight vocal folds were evaluated. The initial diagnosis was found to be consistent with the final diagnosis in only 10 patients (29.4%). The diagnoses of 29 vocal folds (42.6%) and the surgical plans changed after AIR and TI. In six cases, submucosal bands, additional morphological structures in the vicinity of the primary pathology, were observed; these could only be visualized with AIR and TI. AIR and TI revealed new pathologies in four vocal folds that were noted to be normal in the preoperative evaluation. AIR and TI are useful and promising techniques to identify undiagnosed lesions in vocal folds and to increase the success of minimally invasive phonosurgery.

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