Cramp fasciculation syndrome
Peripheral nerve disorder / From Wikipedia, the free encyclopedia
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Cramp fasciculation syndrome (CFS) is a rare[1] peripheral nerve hyperexcitability disorder. It is more severe than the related (and common) disorder known as benign fasciculation syndrome; it causes fasciculations, cramps, pain, fatigue, and muscle stiffness similar to those seen in neuromyotonia (another related condition).[2] Patients with CFS, like those with neuromyotonia, may also experience paresthesias.[3] Most cases of cramp fasciculation syndrome are idiopathic.[4]
Cramp fasciculation syndrome is diagnosed by clinical examination and electromyography (EMG).[5] Fasciculation is the only abnormality[6] (if any)[7] seen with EMG. Cramp fasciculation syndrome is a chronic condition.[8] Treatment options include anti-seizure medications such as carbamazepine, immunosuppressive drugs and plasmapheresis.[4]