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  • Title: [Muscle cramps--differential diagnosis and therapy].
    Author: Reichel G.
    Journal: Med Monatsschr Pharm; 2009 Mar; 32(3):80-6. PubMed ID: 19402333.
    Abstract:
    Calf cramps are sudden, involuntary, painful contractions of part of or the entire calf muscle that are visible, persist for seconds to minutes and then spontaneously resolve. They can occur with no identifiable cause, and are then referred to as common calf cramps. They may also be symptoms associated with diseases of the peripheral and central nervous system and muscle diseases. They also occur in association with metabolic disorders. In such cases the cramps are more extensive, intense and persist for longer. Cramp-fasciculation-myalgia syndrome additionally involves paresthesias and other signs of hyperexcitability of peripheral nerves. The recommended treatment for patients with frequent calf cramps causing significant impairment of well-being is oral administration of quinidine and/or botulinum toxin treatment of the calf muscles. During pregnancy both products are contraindicated, while probatory administration of magnesium is indicated.
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