01-12-2017 | Clinical Quiz
Evolving presentation of leg cramps in a child with nephrotic syndrome: Answers
Published in: Pediatric Nephrology | Issue 12/2017
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Intermittent cramps are a common problem and can affect all ages. Cramps can be a hallmark of many organic disorders; hence it is important to sieve through a broad range of differential diagnoses [1]. Possible etiologies include:-
Electrolyte abnormalities such as hypocalcemia or hypomagnesemia
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Respiratory alkalosis secondary to hyperventilation with subsequent increase in arterial pH and decrease in circulating free ionized calcium levels
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Drug-induced muscular cramping, including diuretics, beta2-agonists (albuterol), calcium channel blockers (nifedipine), statins, lithium and cimetidine
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Endocrine disorders such as thyrotoxicosis, hypothyroidism and hypoglycemia
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Strenuous exercise
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Neuromuscular disorders
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Vascular malperfusion which includes venous congestion or arterial obstruction
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Idiopathic nocturnal leg cramps