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Leg Vein Health

26 April 2018

Can this be the cause of your restless legs?

Understanding the cause of restless legs syndrome may provide a new understanding of the condition and help to develop new therapies.

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Structural changes in the area of the brain that processes sensations may be linked with restless legs syndrome, a new study suggests.

People with restless legs syndrome experience uncomfortable sensations in the legs and a need to move them. It often occurs in the evening and at night, and can affect sleep.

Exercise and iron supplements may reduce symptoms, the researchers said. There are medications for more serious cases, but many have significant side effects if taken for too long.

Less tissue

In the new study, brain scans were performed on 28 people with severe restless legs syndrome and a "control group" of 51 people without the disorder.

The brain scans revealed that people with restless legs syndrome had an average of 7.5% less tissue thickness in the somatosensory cortex. This is the area of the brain that processes sensations such as touch, pain, movement, position and temperature.

Structural changes

The people with restless legs syndrome also had a decrease in the brain region where nerve fibres connect the two sides of the brain, according to the study published online April 25 in the journal Neurology.

"These structural changes make it even more convincing that restless legs syndrome symptoms are stemming from unique changes in the brain, and provide a new area of focus to understand the syndrome and possibly develop new therapies," study author Byeong-Yeul Lee said in a journal news release. He is a research associate at the University of Minnesota's Center for Magnetic Resonance Research, in Minneapolis

However, the study did not prove a cause-and-effect relationship. And Lee added that it's possible that restless legs syndrome symptoms may be caused by problems in other parts of the sensory system.

Image credit: iStock

 

Ask the Expert

Leg vein expert

Dr. Riaz Motara is a specialist physician and cardiologist. He has an interest in preventative cardiology. He runs Veinsculpt, the first and only comprehensive vein clinic in South Africa, using endo-venous laser ablation as the treatment of choice.He also operates the only Women's Heart Clinic in South Africa.

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