Restless Legs Syndrome: an irresistible urge to move legs, usually as it gets closer to bedtime or with periods of inactivity. Restless legs syndrome is different from kicking at night, periodic limb movements, and nocturnal leg cramps.
Although restless legs syndrome has probably always been around, it is becoming a more popular illness because there are new expensive treatments for it. With the drug companies marketing their medications for restless legs, people are starting to hear more about it and then making the connection that they might have it. This is why the diagnosis of restless legs is gaining prevalence. The older drugs that have traditionally been used to treat restless legs tend to have many side effects. The new medication formulations are much better and the benefits clearly outweigh the risks now.
Restless legs syndrome may not be a deadly illness, but it can certainly be very tiresome! People often describe it as a drawing, tightness, or creepy-crawly sensation in the lower legs that is relieved temporarily by moving the leg. It is usually noticed around bedtime and can cause some trouble falling asleep. This would be considered mild disease. As symptoms get worse, the restless legs may begin in the nighttime hours. The sensation may spread to the foot and thighs/hamstrings. People may have to get up and walk around a bit before going back to bed to relieve the legs of the sensation. In more severe disease, the restlessness may start as early as the afternoon or evening and prevent sleep for about 2 hours. I have one patient with very severe restless legs that begin in the early afternoon, when she has to begin taking medications.
No one really knows why someone gets this problem. There is likely some genetics involved, since it tends to run in families. The disorder is primarily in the central nervous system (brain and spinal cord), affecting the dopamine type neurotransmitter. This is where the drugs can act to control the problem. Parkinsons Disease is also a problem with the dopamine neurotransmitter, so the same medications used to treat Parkinsons are also used to treat restless legs. These drugs help while you take them. They are not cures and do not control disease progression.
Not everyone who has restless legs need medication though. In fact, most people can manage without medications. One of the most common and treatable causes of restless legs is iron deficiency. You should definitely get that checked. Perhaps related to the iron deficiency, women tend to have worse symptoms around the time of menses and when pregnant.
The SleepPhones System can help people with mild restless legs syndrome get to sleep faster. Find out more about the SleepPhones System!
Copyright © Wei-Shin Lai, MD 2007