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Vocal cord dysfunction (VCD) is a condition affecting the vocal cords. [1] It is characterized by abnormal closure of the vocal folds, which can result in significant difficulties and distress during breathing , particularly during inhalation .
Vocal cord paresis, also known as recurrent laryngeal nerve paralysis or vocal fold paralysis, is an injury to one or both recurrent laryngeal nerves (RLNs), which control all intrinsic muscles of the larynx except for the cricothyroid muscle. The RLN is important for speaking, breathing and swallowing.
Trauma is often due to excessive use of the vocal folds such as by yelling, screaming, or singing. Though this often results in damage to the outer layers of the vocal folds, the subsequent healing process may lead to changes in the physiology of the folds. [1] Another potential cause of inflammation may be overuse of the vocal cords.
Damage to these nerves results in vocal cord paralysis - the reduced mobility and inability to adduct one or both vocal cords. Many cases of vocal cord paralysis result from trauma during surgery. [2] Symptoms include hoarseness of voice, difficulty projecting, difficulty swallowing, and throat pain. [citation needed]
Spasmodic dysphonia, also known as laryngeal dystonia, is a disorder in which the muscles that generate a person's voice go into periods of spasm. [1] [2] This results in breaks or interruptions in the voice, often every few sentences, which can make a person difficult to understand. [1]
“Treatment for vocal fold atrophy has focused on voice therapy, surgical therapies aimed at vocal fold medialization (when a damaged vocal cord is pushed toward a functioning one) or a ...
Lupita Nyong'o voices the main character Roz in "The Wild Robot," in theaters Friday. Nyong'o strained her vocal cords, forming a polyp while recording Roz's robotic yet emotional voice.
Medical and surgical treatments have been recommended to treat organic dysphonias. An effective treatment for spasmodic dysphonia (hoarseness resulting from periodic breaks in phonation due to hyperadduction of the vocal folds) is botulinum toxin injection. [8] [41] The toxin acts by blocking acetylcholine release at the thyro-arytenoid muscle ...