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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.
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. [1] Due to the similarity in symptoms, VCD attacks are often mistaken for asthma attacks or laryngospasms.
Botulinum toxin (Botox) is often used to improve some symptoms of spasmodic dysphonia through weakening or paralyzing the vocal folds, thus preventing muscle spasms. [ 1 ] [ 33 ] The level of evidence for its use is currently limited; little is known about optimal dosage, frequency of injections, or exact location of injection.
The nerve receives close attention from surgeons because the nerve is at risk for injury during neck surgery, especially thyroid and parathyroid surgery; as well as esophagectomy. [20] [4] Nerve damage can be assessed by laryngoscopy, during which a stroboscopic light confirms the absence of movement in the affected side of the vocal cords. The ...
In a Switzerland study, two people with spinal cord injuries received deep brain stimulation therapy and were able to walk without assistance and even climb stairs. New brain therapy allows ...
Laryngospasm is an uncontrolled or involuntary muscular contraction of the vocal folds. [1] It may be triggered when the vocal cords or the area of the trachea below the vocal folds detects the entry of water, mucus, blood, or other substance.
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Symptoms include hoarseness of voice, difficulty projecting, difficulty swallowing, and throat pain. [citation needed] The arytenoid adduction procedure alleviates these symptoms by manually positioning the paralyzed vocal cord towards the midline. This is accomplished by passing a suture between the muscular process of the arytenoid cartilage ...