1.
J Pediatr
; 159(2): 347-9, 2011 Aug.
Article
de Anglais
| MEDLINE
| ID: mdl-21704322
RÉSUMÉ
A neonate who received vitamin K (VK) supplementation then developed severe late-onset bleeding with abnormal prothrombin time and activated partial thromboplastine time. The bleeding was corrected after intravenous VK. Molecular analysis of the gamma-glutamylcarboxylase gene revealed a heterozygous single nucleotide polymorphism, which decreases carboxylase activity and induces VK-dependent coagulation deficiency.