2012年12月20日 星期四

What are the causes of hoarseness? (1)


Acute Laryngitis: The most common cause is acute laryngitis—swelling of the vocal folds that occurs during a common cold, upper respiratory tract viral infection, or from voice strain. Serious injury to the vocal folds can result from strenuous voice use during an episode of acute laryngitis.



Voice Misuse:
l   Speaking in noisy situations
l   Excessive use
l   Telephone use with the handset cradled to the shoulder
l   Using inappropriate pitch (too high or too low) when speaking
l   Not using amplification when public speaking


Benign Vocal Cord Lesions: Prolonged hoarseness can occur when you use your voice too much, or too loudly for extended periods of time. These habits can lead to nodules, polyps, and cysts. Vocal nodules (singers’ nodes) are callus-like growths of the vocal folds. Vocal fold polyps and cysts also occur in those who misuse their voice, but can also occur in those who do not.

Vocal Hemorrhage: If you experience a sudden loss of voice following a yell or other strenuous vocal use, you may have developed a vocal fold hemorrhage. Vocal fold hemorrhage occurs when one of the blood vessels on the surface of the vocal folds ruptures and the soft tissues fill with blood. It is considered a vocal emergency and should be treated with absolute voice rest and examination by an otolaryngologist (ear, nose, and throat doctor).

Gastroesophageal Reflux (GERD): A possible cause of hoarseness is gastro-esophageal reflux, when stomach acid comes up the swallowing tube (esophagus) and irritates the vocal folds. Other typical symptoms of GERD include heartburn and regurgitation. Usually, the voice is worse in the morning and improves during the day. These people may have a sensation of a lump or mucus in their throat and have an excessive desire to clear it.











Reference information: www.entnet.org/

The information aims to provide educational purpose only. Anyone reading it should consult ENT Specialists before considering treatment and should not rely on the information above.