Spasmodic Dysphonia Presenting in a Post Trauma Tracheostomised Patient with Inadequate Laryngeal Muscle Relaxation

Spasmodic Dysphonia is a chronic long-term voice disorder, with a very rare incidence of 1 per 100,000 cases in which the movement of vocal cords is both forced and strained resulting in hoarse, quivery and jerky voice. We present a very rare and interesting case of spasmodic Dysphonia that was adequately relaxed after administration of muscle relaxants but had undue contractions of adductor group of muscles at the level of vocal cords. Little is known about the genetic basis of the disease but symptoms improve when the kinetic output of the laryngeal muscles is reduced either by unilateral recurrent laryngeal nerve section, or by botulinum injections into the affected muscles.