Epidemiology of VTE

Question 1

VTE stats

Answer 1

• PE leading cause of maternal death
• 40-50% VTE occurs before 15 weeks gestation
• Use of LMWH reduces risk of VTE by 60-70%
• Uk incidence of antenatal PE: 1.3 in 10 000
• Overall incidence of PE/VTE in pregnancy: 1-2/1000
• Absolute incidence 107 per 100 000 persons/years
• 5/8 fold increase post partum, with max incidence at 3 weeks post natal