Restless legs syndrome in Parkinson's disease and increased cardiovascular risk.

Objective: Restless legs syndrome (RLS) is a disorder commonly found in patients with Parkinson's disease, with descriptions for both conditions impairing dopaminergic transmission in central nervous system. Previous studies in varied populations indicate an association between the presence of RLS and increased cardiovascular risk and, so far, there are no consistent studies of this association in Parkinson's disease. To analyze the influence of RLS on cardiovascular risk in patients with Parkinson's disease.