Author(s): DL Adamson, C Nelson-PiercyJournal Issue: Volume 35: Issue 3: 2005 Format Abstract Pulmonary thromboembolism remains the most common direct cause of maternal death in the UK. Pregnancy is associated with prothrombotic changes in the coagulation system, and therefore the risk of VTE disease is increased at any time during the pregnancy but is highest in the puerperium and greatest in women who have undergone caesarean section. PDF https://www.rcpe.ac.uk/sites/default/files/adamson_cme.pdf