Fetal / Neonatal alloimmune thrombocytopenia (F/NAIT)

RecommendationsAntenatal treatment: IVIG (with or without corticosteroids) is recommended as first line treatment for women with a previously affected infant
Dose/Frequency of AdministrationMaternal dose based on the following risk stratification:
Previous fetus with intracranial hemorrhage: Up to a total of 2 g/kg weekly starting as early as 12-16 weeks gestation.

No previous fetus with intracranial hemorrhage: Up to 1g/kg weekly, starting as early as 20-26 weeks current gestation.
RecommendationsNewborn: IVIG is recommended as an adjunct to provision of platelets for infants with NAIT who have severe thrombocytopenia.

Treatment should be administered in consultation with obstetrical medicine and transfusion medicine with expertise in F/NAIT.
Dose/Frequency of AdministrationInfant dose: initial dose of 1 g/kg, reassess following initial dose.