Cerebral infarction after caesarean section due to heterozygosity for homocystinuria; a case report.

Eleven days after a caesarean section cerebral infarction was diagnosed. The underlying cause appeared to be a heterozygous form of homocystinuria. This inborn error in methionine metabolism increases the risk of premature arteriosclerosis, even in heterozygotes. The biochemical abnormalities can be prevented in most of the patients by treatment with vitamin B6 (pyridoxine).