Pregnancy, childbirth and neonatal outcomes of women with rare inherited coagulation disorders.

Background: We aimed to describe the characteristics and the pregnancy outcomes of women with rare inherited coagulation factor disorders managed at a tertiary obstetric-haematology unit in the United Kingdom.

Methods: A retrospective service evaluation was conducted using routinely collected medical records. Descriptive analyses were applied to investigate pregnancy, childbirth and neonatal management and outcomes.

Results: Overall, 20 patients with rare inherited coagulation disorders were included who birthed 30 live infants from 29 pregnancies. Regarding maternal bleeding outcomes, 3% experienced antepartum haemorrhage, 38% of pregnancies experienced primary post-partum haemorrhage, and none experienced secondary post-partum haemorrhage. Five (17%) neonates had cranial ultrasound scans for imaging to investigate for a neonatal haemorrhage, which were all normal.

Conclusions: Although women with rare inherited coagulation disorders may be more susceptible to complications in pregnancy, within this cohort there was no evidence that the condition led to increased morbidity or mortality when best practices were observed.