Dysphonia - spasmodic

Alternative names
Spasmodic dysphonia

Definition

Spasmodic dysphonia involves difficulty speaking because of repetitive or continuous contraction (dystonia) of the muscles that control the vocal cords.

The excessive activity of the vocal cord muscles drives the vocal cords either too close or too far apart, causing a hoarse sounding voice (known as adductor dysphonia) or a whispery, high pitched voice (abductor dysphonia), respectively.

Johns Hopkins patient information

Last revised: December 3, 2012
by Martin A. Harms, M.D.

Medical Encyclopedia

  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0-9

All ArmMed Media material is provided for information only and is neither advice nor a substitute for proper medical care. Consult a qualified healthcare professional who understands your particular history for individual concerns.