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Therapeutic dilemma for restless legs syndrome.

Since the tantalizing description by Willis in 1672 and the modern exposition by Ekbom in 1945,1 we have enhanced our understanding of the common yet uncommonly recognized entity of restless legs syndrome (RLS). RLS is a sensorimotor neurologic disorder with an unknown natural history that profoundly disturbs sleep and quality of life. The condition was not viewed as a true disease by some until 2011, when it was renamed Willis–Ekbom disease. Four essential diagnostic criteria have been established: the urge to move the legs (with or without uncomfortable leg sensations), beginning or worsening of symptoms during quiescence, relief on moving . . .