Selective Laryngeal Deinnervation and Reinnveration

Deinnervation Reinnveration - Voice and Swallowing Doctor - Sunil Verma MD

Deinnervation-reinnervation is a surgery used to treated spasmodic dypshonia. Spasmodic dypshonia is a disorder in which a patient has laryngeal spasms which cause spastic or strangled speech. While botox injections are most commmonly used for management of spasmodic dysphonia symptoms, de-innervation reinnervation has been shown to treat this disorder.

The voice box, or larynx, is controlled by branches of the recurrent laryngeal nerve. This nerve branches to innervate, or power, specific muscles of the larynx.


Deinnervation-reinnervation surgery involves “de-innervating” or cutting the nerves that power the muscles which are spastic in spasmodic dysphonia.

Through a cut on the neck a portion of the thyroid cartilage is removed to identify these nerve branches. The nerve is cut, and to prevent re-growth this branch of the recurrent laryngeal nerve is “re-innervated” to the ansa cervicalis nerve.

This surgery is performed with a patient asleep and typically patients spend some time in the hospital in recovery. Initially a patient may experience breathy hoarseness and some difficulty swallowing items such as thin liquids. However, with time patients usually experience reversal of both.

Dr-Verma - Voice and Swallowing Doctor - Sunil Verma MD is an online resource for patients and physicians to learn more about common voice, swallowing, breathing and throat disorders. Throat complaints, from cough to cancer, are a common reason for patients to seek medical treatment. This website developed as a result of Dr. Sunil Verma's passions: that of education, patient care, and interest in technology.

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NOTE : The information presented on this site is for educational purposes only, and is not intended to replace consultation with a qualified physician. It may not be appropriate to your individual case, and should not be used in making treatment decisions, especially with regard to medication. Considerable effort is made to ensure that the information on this site is accurate, but medicine is a changing field, and this website is not responsible for errors or omissions. Use of this website acknowledges the above.

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