What is Spasmodic Dysphonia?

Spasmodic Dysphonia is a voice disorder characterized by involuntary muscle spasms of the larynx during speech. It is a neurological condition that is a focal type of dystonia. Dystonia falls into the same category of movement disorders such as Parkinson’s disease and tremor.

SD
begins in the basal ganglia of the brain, sending incorrect messages to the vocal chords. When a person with Spasmodic Dysphonia speaks, the muscles that control the movement of the vocal folds spasm in either an open or a closed position, depending upon which type of SD a person has.

The types of SD are named for the muscles affected. Adductor muscles in the larynx close the vocal folds. Abductor muscles open them. The resulting voice problems are a direct result of the larynx locking in an open or closed position.

As one might expect, with the larynx locked in a closed position, the resulting voice sounds tight, strained, squeezed, or strangled. Words get cut off and are difficult to start because of the muscle spasms, making the voice sound choppy. To some, it may sound similar to stuttering. This is Adductor SD, or ADSD for short.

When the muscles of the larynx spasm in an open position, the vocal folds cannot vibrate to produce sound. Simultaneously, the open position allows quite a bit of air to escape from the lungs. The vocal folds naturally open when pronouncing voiceless consonants (h, f, c, p, t, th, k, s), but in individuals with Abductor SD, they stay locked in the open position for a few seconds. Instead of sound, a rush of air comes out, or the voiceless consonants are prolonged and produced with excessive breathiness. There may also be uncontrolled pitch elevations on vowel initiation, difficulty coordinating breathing with speech, and excessive oxygen loss while speaking.

Adductor (tight voice) SD is by far the most common type, accounting for 90% of cases. Abductor (breathy voice) SD is the rarer type, at only 10% of cases. Some people have a mixture of both types of SD, and many have a vocal tremor along with SD. A person can have both AD and AB SD along with a vocal tremor.

In all types of SD, speaking is effortful, tiring, and frustrating. It can be painful – both physically and emotionally. SD can severely limit a person’s social life and activities. Talking on the telephone is very difficult for most people with SD. Speaking in noisy environments, such as restaurants, nightclubs, bars, parties, street fairs - almost anywhere there is a lot of people, traffic, or open space – can be next to impossible for many with SD. SD affects one’s ability to communicate effectively at work, in social situations, with store clerks, as well as with one’s partner, parents, children and grandchildren. It is difficult to make new friends when one has SD. People with SD also have to deal with the sometimes hurtful reactions to their voices from people who do not understand the disorder. Thus, SD can lead to isolation and depression. Many people with SD work hard to overcome the personal, professional, and social challenges they face with this disorder.

Spasmodic Dysphonia is an adult-onset disorder, most commonly manifesting between the ages of 30-50. The cause is unknown, and there is no known cure.

Available treatments are: injections of botulinum toxin into the muscles of the larynx; surgery; and voice therapy. They have varying degrees of effectiveness.

Sunday, July 6, 2008

ADAPTING to and MANAGING SPASMODIC DYSPHONIA

by Dale Finn, MSN, RN, CS, Psychiatric/Mental Health Clinical Nurse Specialist
Dale Finn currently serves the NSDA as Area Contact Person for South Carolina

Special thanks to Mary Bifaro for publishing this in the Charlotte SD Support Group Newsletter

Living with a chronic condition such as SD involves an ongoing, ever-changing process of trying to make sense of how to live with a “new voice”. To do this effectively, it requires us to find a balance between focusing on our symptoms and recovering our pre-SD identity.

SD affects our self-esteem. Our voices sound different. We sometimes are unable to get any recognizable words out. We stop and sometimes stutter while attempting to push words through spasming vocal folds. It is a struggle to talk, so often we don’t. Frequently people treat us differently and worse yet, we perceive ourselves to be different. We struggle between our self-identity (the person we know we are) and the identity that is shaped by our voices (the identity given to us by others and accepted by us, in response to our voice).

Living with any chronic illness or condition comes down to one statement: we either assume control or we will be controlled.

Before we can gain control, we need to come to terms with our diagnosis. Whether it has taken years of searching for a diagnosis to our voice problems or we have received the diagnosis within a few months of our first symptoms, we must all process the news and try to make sense of it. First, it is helpful to look at how we have coped with life adjustments in the past. This is often a good predictor of how we will cope with this diagnosis. Next, coming to terms with the diagnosis means dealing with the feelings of loss and grief. We have lost a very important part of our everyday functioning. Feelings of denial, anger, bargaining, depression, sadness, and acceptance are all necessary to acknowledge and deal with.

Another helpful way of taking control of the diagnosis of SD is to gain all the knowledge we can about the disorder and become the expert. Then we need to share this knowledge and our personal experience of living with SD with health care providers, family and friends. Once we have gained all the information we can, from as many sources as possible, we then decide on the best treatment. This is a very individualized decision. There are several treatment options for SD, and no one treatment fits all. In making our choices, we must believe in ourselves and feel confident that the decisions are those that we can live with.

Adaptation requires us to balance living our lives without being absorbed with our symptoms. SD does not define who we are, it is only a portion of our identity. We need to lessen the effects that it has over our lives. We may need to change aspects of our life to accommodate our voices, but these changes may also bring rewards we never expected. SD needs to be placed in the distance when viewing oneself. The balance comes when we attend to our voice disorder while focusing on all the other components that make up who we are and how we contribute to the world around us.

1 comment:

Anonymous said...

Hi -
I've like to invite you to visit VoiceMatters.net! We have several members on the website who have Spasmodic Dysphonia (and a host of other vocal disoders). I am really enjoying your blog and think you would have a lot to offer to our site.

Please consider visiting VoiceMatters.net!

Thanks,
Andrea Hardaway

http://www.VoiceMatters.net

Topics to be addressed:

  • Affects on Mood & Self-Esteem
  • Affects on Social and Personal Life
  • Associated disorders
  • Dealing with people's reactions & false assumptions
  • Employablility with SD
  • FAQ's
  • Is SD a disability? Can one get benefits?
  • Living with no voice control - or little or no voice
  • Loss of breath
  • Pain
  • Treatment
  • Types of SD: AD vs. AB
  • Voiceless Consonants
  • What is Spasmodic Dysphonia?