Restless legs syndrome (RLS) is a sensory disorder
causing an almost irresistible urge to move the legs. The
urge to move is usually due to unpleasant feelings in the
legs that occur when at rest. People with RLS use words such
as creeping, crawling, tingling, or burning to describe
these feelings. Moving the legs eases the feelings, but only
for a while. The unpleasant feelings may also occur in the
arms.
Effects of RLS
RLS can make it hard to fall asleep and stay asleep.
People with RLS often don’t get enough sleep and may feel
tired and sleepy during the day. This can make it difficult
to:
Concentrate, making it harder to learn and remember
things
Work
Carry out other usual daily activities
Take part in family and social activities
Not getting enough sleep can also make you feel depressed
or have mood swings.
RLS can range from mild to severe, based on:
How much discomfort you have in your legs and arms
Whether you feel the need to move around
How much relief you get from moving around
How much sleep disturbance you have
How tired or sleepy you are during the day
How often you have symptoms
How severe your symptoms are on most days
How well you carry out daily activities
How angry, depressed, sad, anxious, or irritable you
feel
Types of RLS
There are two types of RLS:
Primary RLS is the most common type
of RLS. It is also called idiopathic RLS. “Primary” means
the cause is not known. Primary RLS, once it starts,
usually becomes a lifelong condition. Over time, symptoms
tend to get worse and occur more often, especially if they
began in childhood or early in adult life. In milder
cases, there may be long periods of time with no symptoms,
or symptoms may last only for a limited time.
Secondary RLS is RLS that is caused
by another disease or condition or, sometimes, from taking
certain medicines. Symptoms usually go away when the
disease or condition improves, or if the medicine is
stopped.
Periodic Limb Movement Disorder
Most people with RLS also have a condition called
periodic limb movement disorder (PLMD). PLMD is a condition
in which a person’s legs twitch or jerk uncontrollably about
every 10 to 60 seconds. This usually happens during sleep.
These movements cause repeated awakenings that disturb or
reduce sleep. PLMD usually affects the legs but can also
affect the arms.
Outlook
RLS can be unpleasant and uncomfortable. However, there
are some simple self-care approaches and lifestyle changes
that can help in mild cases. RLS symptoms often improve with
medical treatment. Research is ongoing to better understand
the causes of RLS and to develop better treatments.
How Is Restless Legs Syndrome Treated?
The goals of treatment for restless legs syndrome (RLS)
are to:
Relieve symptoms
Increase the amount and quality of sleep
Treat or correct any underlying condition that may
cause RLS
Lifestyle changes can improve and relieve symptoms of RLS.
Lifestyle changes may be the only treatment needed for mild
RLS. Some lifestyle changes that may help include:
Avoid things that can make symptoms of RLS worse:
Tobacco
Alcohol
Caffeine—Chocolate, coffee, tea, and some soft
drinks contain caffeine. Although it may seem to help
overcome daytime sleepiness, caffeine usually only
delays or masks RLS symptoms, and often makes them
worse.
Some medicines—Some types of over-the-counter and
prescription medicines can also make RLS symptoms worse.
These include:
Antidepressants (most of them)
Antinausea medicines
Antipsychotic medicines
Antihistamines
Adopt good sleep habits:
Keep your bedroom or sleep area cool, quiet,
comfortable, and free of unnecessary light.
Use your bedroom for sleeping, not for watching TV
or using computers or cell phones.
Go to bed every night at the same time and wake up
at the same time every morning. Some people with RLS
find it helpful to go to bed later in the evening and
get up later in the morning. The important thing is to
get enough sleep so that you feel rested when you wake
up.
Follow a program of moderate exercise.
Other activities that also may help relieve symptoms
include:
Medicines can help relieve some symptoms of RLS. Doctors
prescribe medicines to treat RLS in people:
With clearly defined symptoms
Whose symptoms cannot be controlled by lifestyle and
nondrug treatments
No single medicine is helpful in all persons with RLS. It
may take several changes in medicines and dosages to find
the best approach. Sometimes, a medicine will work for a
while and then stop working.
Some medicines may not be safe for pregnant women.
Always talk with your doctor before taking any medicines,
even over-the-counter medicines.
Specific medicines
Medicines used to treat Parkinson’s disease also are used
to treat RLS. Even though these medicines help reduce RLS
symptoms, RLS is not a form of Parkinson’s disease. The
medicines help reduce the amount of motion in the legs. They
include:
Levodopa (le-vo-DO-pa)
Is best used to treat mild cases of RLS
Is short-acting
Works for a while but does not work long term in
most people
Dopamine agonists (pergolide (PER-go-lid), pramipexole
(prah-mih-PEX-ohl), and ropinirole (roh-PIN-ih-roll))
Are used to treat moderate and severe cases of RLS
Are used to treat mild cases of RLS if levodopa
stops working
Are long-acting
The U.S. Food and Drug Administration recently approved
ropinirole to treat moderate to severe RLS.
Other medicines may be used to treat RLS, including:
Strong pain-relieving medicines (narcotics).
Used most often when symptoms are severe
May be used in people who don’t respond to dopamine
agonists
Are not recommended for people with sleep apnea and
for older persons
Medicines used to treat epilepsy (anticonvulsants:
gabapentin (gab-ah-PEN-tin), carbamazepine (kar-bam-AZ-e-pen),
and valproate (val-PROH-ate)). These types of medicines
are:
Considered when dopamine agonists fail
Most effective in persons with daytime and evening
symptoms, as well as sleep-onset symptoms, and in those
who describe the unpleasant feelings in the legs as
painful.
Iron supplements, if iron deficiency appears to be
contributing to RLS. Iron supplements should only be used
if recommended by a doctor.
Source: Marketdata Enterprises, Inc. research, Wikipedia