Head-banging with subsequent hemoglobinuria and acute renal failure1

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Acute renal failure was precipitated by hemoglobinuria secondary to head-banging in a retarded 12-year-old boy who had cyanotic tetralogy of Fallot and mild dehydration secondary to acute gastroenteritis. Hemoglobinuria is a not uncommon result of repeated pounding trauma to any extremity. Renal problems with hemoglobinuria generally occur in association with other renal risk factors such as dehydration and ischemia.



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