Causes
In paralysis of the muscle in vocal cord paralysis the nerve impulses to your voice box (larynx) are interrupted, resulting. Doctors cannot determine the cause of vocal cord paralysis in as many as half the cases. Known causes may include:
Injury to the vocal cord during surgery. Surgery on or near your neck or upper chest can result in damage to the nerves that serve your voice box. Surgeries that carry a risk of damage include surgeries to the thyroid, esophagus, neck and chest.
1. Stroke. In your brain and may damage the part of your brain that sends messages to the voice box. A stroke interrupts blood flow
2. Neck or chest injury. Trauma to your neck or chest may injure the nerves that serve your vocal cords or the voice box itself.
3. Inflammation. Scarring of the vocal cord joints or the space between the two vocal cord cartilages, and this inflammation may prevent your vocal cords from opening and closing Arthritis or surgery can cause inflammation and. The symptoms and signs mimic vocal cord paralysis even though the vocal cord nerves remain normal. In addition, some viral infections can cause inflammation and damage directly to the nerves in the larynx.
4. Tumors. Both cancerous and noncancerous tumors, , can grow around the muscles, cartilages or nerves of your voice box and can cause vocal cord paralysis.
5. Neurological conditions. You may experience vocal cord paralysis; however, these conditions are more likely to cause vocal cord weakness than complete paralysis.If you have certain neurological conditions, such as multiple sclerosis.
