Type 3 von Willebrand Disease in Pregnancy: A Systematic Literature Review.

OBJECTIVE

von Willebrand disease (VWD) is a hereditary bleeding disorder. Type 3 VWD is the most severe and rare phenotype that presents many challenges for management of pregnant women. The aim of this study was to review the maternal characteristics and complications in pregnant women with Type 3 VWD.

STUDY

DESIGN

A systematic literature search was performed to include all publications that address Type 3 VWD in pregnancy.

RESULTS

Thirteen studies met the inclusion criteria. There were 28 pregnancies with Type 3 VWD in 17 women. All were diagnosed with Type 3 VWD prior to pregnancy. Concentrate treatment was administered before delivery for 19 pregnancies and postpartum for 26 pregnancies. Eight pregnancies required blood products postpartum. Primary postpartum hemorrhage (PPH) was reported in 48% (10/21) and secondary PPH was reported in 56% (5/9). Secondary PPH occurred between 7 and 22 days. No study reported hysterectomies, intensive care unit admissions, or maternal mortality. All 28 pregnancies resulted in 28 live births at term.

CONCLUSION

Our review highlights the maternal outcomes in patients with Type 3 VWD and the different approaches in management during pregnancy and delivery. Despite prior knowledge of this bleeding disorder, PPH was still a significant complication.