|
Other Dyssomnias
Kleine-Levin syndrome
Kleine-Levin syndrome is a recurrent form of hypersomnia that affects
a person three or four times a year. Doctors do not know the cause
of this syndrome. It is marked by two to three days of sleeping 18-20
hours per day, an abnormally uninhibited sexual drive, apathy, compulsive
eating, and irritability. Men are three times more likely than women
to have the syndrome.
The disorder primarily affects adolescent males. When awake, affected
individuals may exhibit irritability, lethargy, and/or apathy. They
may also appear confused (disoriented) and experience hallucinations.
Symptoms of Kleine-Levin syndrome are cyclical. An affected individual
may go for weeks or months without experiencing symptoms. When present,
symptoms may persist for days to weeks. In some cases, the symptoms
associated with Kleine-Levin syndrome eventually disappear with advancing
age. However, episodes may recur later during life.
There is no good treatment for Kleine-Levin syndrome. Doctors often
prescribe Ritalin or modafinil stimulants, and these can relieve the
symptoms, but do not affect the underlying problem. There is interest
in using mood stabilizers such as lithium or carbamazepine although
reports indicate these work only in some patients.
Sleep Starts
Sleep starts are so common that they almost don’t count as a sleep
disorder. Most have experience them - a sudden, often violent, jerk
of the entire body or one or more body segments that occurs upon falling
asleep. Sleep starts are also known as hypnic or hypnagogic jerks.
Somewhat related are: a visual sleep start - usually a sensation of
blinding light coming from inside the eyes or head and an auditory
sleep start - a loud snapping noise that seems to come from inside
the head.
Contributing factors that can lead to sleep starts include stress,
exercise before bed, and caffeine or other stimulants. Patients that
suffer sleep starts often have an iron deficiency and/or a urea buildup.
They are also side effects of some antidepressants and antihistimines.
At times, many jerks may occur one after another. They can be frequent,
intense, and repetitive. Intense or frequent sleep starts may lead
to a fear of falling asleep. In most people, they only occur from
time to time. Sleep starts affect all ages and both men and women.
They are more common among pregnant women and the elderly.
Treatment options include leg exercises, iron supplements, and in
bad cases, dopamine agonists similar to those used for restless legs
syndrome, although pregnant women can't have dopamine agonists.
Nocturnal Paroxysmal Dystonia
Nocturnal paroxysmal dystonia is a disorder where the person behaves
as if he or she has had an epileptic fit during sleep. Such attacks
may take place seven to eight times during one night and each attack
last from fifteen to sixty seconds. These attacks typically take place
during the non-REM period of sleep. The patient may also wake up from
sleep after such a seizure. The behavior pattern of people who suffer
from this affliction may also include somnambulism or what is more
commonly known as night walking.
Some researchers believe that this disorder is exactly similar to
frontal lobe epilepsy but the clinical evidence is not absolutely
conclusive. The most common form of treatment of this disorder follows
the same route as that taken for treating an epilepsy patient.
|