Is a therapeutic anticoagulation window needed for delivery when using prophylactic low molecular weight heparin during pregnancy? A retrospective monocentric study.

Objectives: The aim of the study was to evaluate the usefulness of therapeutic window for delivery for patients under prophylactic anticoagulation by low molecular weight heparin (LMWH) by comparing those who had a planned delivery versus those who delivered spontaneously.

Study Design: This retrospective monocentric study included pregnant patients with prophylactic anticoagulation (one injection per day of enoxaparin 4000UI), who delivered after 24 weeks of gestation. We collected data on pregnancy characteristics and on the delivery.