Blondon et al identified risk factors for venous thromboembolism in a woman who has had a delivery. This was based on a meta-analysis of reported studies. The authors are from Geneva University Hospitals, University of Wisconsin and University of Washington in Seattle.

Patient selection: status post delivery


The odds ratio for a venous thromboembolism is 3.7 after cesarean section compared to vaginal delivery.


Frequency of venous thromboembolism: 0.3%


Additional risk factors:

(1) emergency Cesarean section

(2) longer and better follow-up

(3) failure to provide thromboprophylaxis

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