Definition of Amyotrophic lateral sclerosis (ALS)
Amyotrophic lateral sclerosis (ALS): A classic motor neuron
disease. Motor neuron diseases are progressive chronic diseases of
the nerves that come from the spinal cord responsible for supplying
electrical stimulation to the muscles. This stimulation is
necessary for the movement of body parts.
LOU GEHRIG'S DISEASE: Amyotrophic lateral sclerosis is quite a mouthful. The
disease is therefore usually referred to simply as ALS. In North
America it is sometimes called "Lou Gehrig's disease" after the great
durable baseball player who had it. The movie, "Pride of the
Yankees", tells the his life story. As a New York Yankee, Gehrig was named the American League's most valuable player 4 times (in 1927, 1931, 1934 and 1936). In 14 seasons Gehrig did not miss a single game for a total of 2,130 games. Gehrig was born in 1903, and he died in 1941 at the age of 38.
EPIDEMIOLOGY: ALS strikes in mid-life, most often in the
fifth through seventh decades of life. Men are about one-and-a-half
times more
likely to have the disease as women. It affects about 20,000
Americans with 5,000 new cases occurring in the United States each
year.
THE DISEASE PROCESS: ALS occurs when specific nerve cells
in the brain and spinal
cord that control voluntary movement gradually degenerate. The loss
of these motor neurons causes the muscles under their control to
weaken and waste away, leading to paralysis. The cause of this
disease process is still unknown.
SIGNS AND SYMPTOMS: ALS manifests itself in different ways,
depending on which muscles weaken first. Symptoms may include
tripping and falling, loss of motor control in hands and arms,
difficulty speaking, swallowing and/or breathing, persistent fatigue,
and twitching and cramping, sometimes quite severely.
TREATMENT: There is no cure for ALS; nor is there a proven
therapy that will prevent or reverse the course of the disorder. The
Food and Drug Administration (FDA) approved riluzole, the first drug
that has been shown to prolong the survival of ALS patients. Patients
may also
receive supportive treatments that address some of their symptoms.
PROGNOSIS (OUTLOOK): ALS is progressive and fatal. The
usual causes of death of patients with motor neuron diseases are not
directly related to the disease, but result from simultaneous
additional illnesses which ultimately occur because of weakness of
the body. These illnesses are often infections.
DURATION OF DISEASE: ALS usually leads to death within 5
years of the time the diagnosis of ALS is made; the range is from 2
to 7 years.
Last Editorial Review: 6/26/2000Common Misspellings: amyotrophic lateral sklerosis (als), amyotrophic lateral sclorosis (als), amyotrophic lateral schlerosis (als), amyotrophic lateral scleroses (als)
- riluzole oral tablets, Rilutek - Consumer information about the medication RILUZOLE ORAL TABLETS (Rilutek), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug RILUZOLE ORAL TABLETS.
- Electromyogram (EMG) - EMG (electromyogram) can detect abnormal muscle electrical activity in conditions such as neuropathy, carpal tunnel syndrome, pinched nerves, herniated discs, peripheral nerve damage, ALS, and more.
- Muscle Spasms - Read about muscle spasms, their causes, diagnosis, treatment and prevention. Symptoms and signs include acute pain at the site of the muscle contractions (twitches or fasciculations).
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