09-11, 15:00–15:30 (Europe/Istanbul), Laryngology 2
Adductor spasmodic dysphonia (AdSD) is a task-specific focal dystonia causing voice breaks during speech but not during non-verbal vocalizations. While botulinum toxin injections offer temporary relief, type 2 thyroplasty provides a more lasting solution. This surgical approach reduces hyperadduction without damaging laryngeal muscles or nerves. Key factors for success include performing the procedure under local anesthesia with intraoperative voice monitoring, precisely adjusting the thyroid cartilage window, and ensuring stable maintenance of the glottal gap. This presentation outlines the critical surgical techniques and decision-making strategies essential for achieving durable voice improvement in patients with AdSD.
The link to the video is shown below.
This proposal aims to highlight the effectiveness of type 2 thyroplasty as a long-term treatment for AdSD. By preserving neuromuscular structures and optimizing glottal configuration under local anesthesia with real-time voice monitoring, this approach ensures sustained voice improvement. Key surgical techniques and intraoperative strategies will be discussed to support consistent and successful outcomes.
Prof. Tetsuji Sanuki is Professor of the Department of Otolaryngology-Head & Neck Surgery at Nagoya City University Graduate School of Medical Sciences, Director of Nagoya Voice & Sinus Center at Nagoya City University East Medical Center, and Deputy Director of the Endoscopic Transnasal Skull Base Surgery Center, Nagoya City University Hospital, Nagoya Japan. He spent his fellowship at the Isshiki Clinic Kyoto Voice Surgery Center with Emeritus Professor Nobuhiko Isshiki. He specializes in voice, airway and swallowing disorders. He also has expertise in treating performers with voice disorders, laryngeal cancer, laryngeal premalignancy, transgender voice, spasmodic dysphonia, laryngeal tremor, vocal fold paralysis, recurrent respiratory papillomatosis, airway stenosis, and dysphagia. His research focuses primarily on the surgical treatment of spasmodic dysphonia and other voice disorder, office-based procedures of the upper airway, and laryngeal education.