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Cerebral vascular complication and hyperhomocysteinemia in a cystinotic uremic child

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Abstract

 We report a 13-year-old girl with nephropathic cystinosis on chronic peritoneal dialysis who presented with two episodes of stroke. Laboratory evaluation showed severe hyperhomocysteinemia (108 µmol/l). Further testing revealed that she was homozygous for the thermolabile variant of the methylenetetrahydrofolate reductase (MTHFR) gene. Treatment with folic acid and vitamin B12 lowered plasma homocysteine to less than 20 µmol/l. No further episodes of stroke occurred over a follow-up of 12 months. Homocysteine levels should be measured in patients with chronic renal failure, since simple and safe treatment with folic acid and vitamin B12 is effective in lowering the plasma homocysteine level in patients with the thermolabile MTHFR allele.

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Received: 23 October 1997 / Revised: 19 May 1998 / Accepted: 27 May 1998

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Merouani, A., Genest Jr., J., Rozen, R. et al. Cerebral vascular complication and hyperhomocysteinemia in a cystinotic uremic child. Pediatr Nephrol 13, 73–76 (1999). https://doi.org/10.1007/s004670050567

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  • DOI: https://doi.org/10.1007/s004670050567

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