title: Differentiating nocturnal leg cramps and restless legs syndrome.
abstract: Leg pain and discomfort are common complaints in any primary physician's clinic. Two common causes of pain or discomfort in legs are nocturnal leg cramps (NLC) and restless leg syndrome (RLS). NLC present as painful and sudden contractions mostly in part of the calf. Diagnosis of NLC is mainly clinical and sometimes involves investigations to rule out other mimics. RLS is a condition characterized by the discomfort or urge to move the lower limbs, which occurs at rest or in the evening/night. The similarity of RLS and leg cramps poses the issue of errors in diagnosing and differentiating the two. In this paper we review the pathopysiology of each entity and their diagnosis as well as treatment. The two conditions are then compared to appreciate the differences and similarities. Finally, suggestions are recommended for complete assessment.
authors.affiliation: Parkinson's Clinic of Eastern Toronto and Movement Disorders Centre, Suite 111, 1371 Neilson Road, Scarborough, Ontario M1B 4Z7, Canada.
authors.forename: Abdul Qayyum
authors.initials: AQ
authors.lastname: Rana
authors.forename: Fatima
authors.initials: F
authors.lastname: Khan
authors.forename: Abdullah
authors.initials: A
authors.lastname: Mosabbir
authors.forename: William
authors.initials: W
authors.lastname: Ondo
mesh_terms: D006801:Humans; D012148:Restless Legs Syndrome / Q000175:diagnosis*; D020922:Sleep-Wake Transition Disorders / Q000175:diagnosis*
keywords: movement disorder; nocturnal leg cramp; periodic limb movement; restless leg syndrome; willis ekbom disease