Narcolepsy
The desire for frequent naps may not sound like a serious illness. Most
of us have experienced days and whole time periods where we feel almost
uncontrollably sleepy. People who are unaware of the disabling symptoms
of this neurological disorder often joke about narcolepsy.
These symptoms often emerge during the teens or early twenties where
one of the hardest aspects for undiagnosed sufferers is the fact that
the sleep urges are genuinely uncontrollable.
Non-pathological sleep
urges will respond to self-control. This is one of the most
debilitating aspects of the illness: the lack of recognition that there
is a very real problem.
People are uncomfortable with presenting uncontrollable fatigue as the
possible symptom of illness and so help is typically not sought for
several years. The Stanford School of Medicine reports that the average
time between symptom onset and diagnosis is a grueling 14 years with
most narcoleptic patients as yet undiagnosed and therefore untreated.
For the one in one thousand American people who suffer from narcolepsy,
this is an extraordinarily long time to suffer severe symptoms without
diagnosis and treatment. Both men and women of all races are
susceptible to this disease whose victims equal those of other
neurological disorders like multiple sclerosis.
It is thought that the disorder may have a hereditary aspect to it that
may or may not be triggered by viral and bacterial agents, accidents,
illness, stress, hormonal changes or drug usage.
Narcolepsy is a neurological disorder that researchers associate with
the absence of a particular neurotransmitter that normally produces
hypocretin peptide, which is essential for the sleep-wake cycle in
humans.
The disorder is directly related to the abnormal behavior of the REM
function in sleep and medical researchers sometimes refer to the
symptoms as the "pathological equivalents of REM sleep".
The most obvious symptom of narcolepsy is what is known as Excessive
Daytime Sleepiness (EDS). This may occur with or without warning and
generally last for a few seconds to several minutes. In rare cases
episodes may extend to an hour or longer. Also present is a more
generalized feeling of constant drowsiness as a direct result of the
abnormal REM sleep characteristic of this condition.
Cataplexy is another major symptom of the illness. It is an important
aid for diagnosis as it is the only one that is unique to narcolepsy.
This pathological equivalent of REM sleep causes the sudden loss of
voluntary muscle control usually triggered by emotions like laughter,
surprise, anger or fear. The patient may buckle at the knees or the
head may drop and the jaws slacken.
Two other common narcolepsy symptoms are sleep paralysis and the vivid
and unreal hallucinations that are associated with that condition.
Early diagnosis is a key element in a prognosis that has more to do
with treatment than it does with cure, as one has not yet been
discovered. The good news is that Narcolepsy is not degenerative and
the typical pattern of the disease features an early onset followed by
a lessening of intensity after age 60.
Early diagnosis is critical. Knowing that your condition is the result
of a neurological malfunction is easier to live with than the belief
that your life is out of control and you are unable to cope. Knowledge
and awareness are two very important tools in the treatment of the
disorder and they help to stem the development of secondary symptoms
like fatigue, depression and low self-esteem.
Treatment for the condition includes a combination of medications and
behavioral strategies. According to the national non-profit
organization, Narcolepsy Network, the principal aim of treatment is "to
increase day time alertness and to lessen recurring cataplexy".
Central nervous system stimulants like Ritalin and Dexedrine are
cautiously administered to deal with EDS while certain tricyclic
antidepressants and serotonin reuptake inhibitors have been used to
help with cataplexy and other REM symptoms.
Behavioral strategies include scheduled napping routines aimed at
reducing daytime drowsiness. Alternative herbal remedies and treatments
may also be effective in the treatment of symptoms.
The clinical diagnosis of narcolepsy requires the presence of EDS
accompanied by cataplexy. A laboratory test called a polysomnogam (PSG)
at an overnight sleep disorders center can confirm the presence of EDS
as well as other symptoms of pathological REM behavior.
This is typically followed by a Multiple Sleep Latency Test to measure
sleep onset and the presence of REM sleep. Normal people experience an
initial sleep period of up to 90 minutes preceding REM sleep. People
with narcolepsy experience REM sleep almost immediately sometimes even
prior to the closing down of awareness. It is this circumstance that
causes the vivid hallucinations that are a symptom of this disabling
disorder.