Adductor spasmodic dysphonia: This is the most common type, making your voice suddenly sound strained, tight and hoarse. Abductor spasmodic dysphonia: The second most common type makes your voice sound very breathy. You may lose …

Abductor spasmodic dysphonia is an SD variant where spasms pull the vocal folds apart, causing the voice to drop out or sound weak & breathy.

What is spasmodic dysphonia (SD)? Spasmodic dysphonia (SD) is a voice disorder in which abrupt, involuntary movements (spasms) in the voice box cause abnormal voice (dysphonia).

Adductor SD, the most common form, and affects approximately 80–90% of people with SD. In this type, spasms, usually in the thyroarytenoid muscle (TA), force the vocal folds together in …

Jul 24, 2023 · Spasmodic dysphonia (or laryngeal dystonia) is a rare voice disorder that is thought to happen when your brain sends abnormal signals to your vocal folds. It only affects about 1 …

There are 3 types of spasmodic dysphonia: Adductor spasmodic dysphonia. This is the most common type. It causes sudden involuntary spasms that trigger the vocal cords to stiffen and slam closed. The spasms interfere with vibration of the vocal cords and with making sound. Stress can make spasms worse. Speech sounds are strained and full of effort.

In Ab-SD, the toxin is directed at weakening the muscles that open the vocal folds. Inadequate parting of the vocal folds could result in breathing difficulty, so injections are often staggered, with one vocal fold injected one or two weeks after the first.

Spasmodic dysphonia, or laryngeal dystonia, is a disorder affecting the voice muscles in the larynx, also called the voice box. When you speak, air from your lungs is pushed between two elastic structures—called vocal folds—causing them to vibrate and produce your voice.

Spasmodic dysphonia (also known as laryngeal dystonia) is a movement disorder featuring involuntary contractions of the vocal cord muscles. These contractions may result in patterned “breaks” or interruptions in speech, or may give a breathy quality to the voice.

Abductor spasmodic dysphonia: This type causes sudden spasms that cause the vocal cords to open. Speech takes a lot of effort, and air escapes during speech, making speech weak, quiet, and whispery.