Female, 37 yr, diagnosed with Laryngeal Dystonia, Adductor type, doing well with intramuscular injections with botulinum toxin for 5 years. Due to the rollercoaster effect of Btx-treatment, she is motivated for transoral laser microsurgery, performing a bilateral myoneurectomy of both thyro-arytenoid muscles. Goal: permanent improvement of the voice with respect to voice quality and stability.