Restless legs syndrome (RLS) often presents with paresthesias and dysesthesisas. We have investigated the prevalence and clinical features of RLS in a cohort of patients referred for clinical suspicion of peripheral neuropathy (PN). Sixty-four patients with sensory symptoms, and 101 age-matched controls were prospectively evaluated for RLS, PN and causes of both conditions. In the 64 patients (60 +/- 14 years), none were referred with a suspicion of RLS. Forty-one had a sensori-motor PN of which 22 had a definite RLS (54%). When excluding other causes of RLS, 8 of 41 patients had a RLS associated with a neuropathy (20%). The proportion of RLS in the healthy controls was 10%, lower than in the cohort of patients. In patients without PN, 57% had a RLS, and 55% in the whole cohort, a higher proportion than in the healthy controls (P < 0.0001). Patients with PN and RLS had more sleep disorders (P < 0.04), and legs and calves symptoms (P = 0.09) than patients with PN without RLS. Toes symptoms were more frequently observed in patients with PN but without RLS (P < 0.02). We conclude that RLS frequently presents with symptoms suggestive of peripheral neuropathy, and therefore, is often overlooked.
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