SummaryThe venous occlusion test was applied to 17 patients with inflammatory bowel disease (IBD; 7 cases of Crohn’s disease, 10 cases of ulcerative colitis). Results were compared to those obtained in 20 healthy matched control subjects. Patients with IBD had significantly decreased t-PA Ag release (p <0.001) and had no significant vWF Ag release. Residual PAI activity was evidenced after venous stasis in the IBD group but not in the control group. Hypofibrinolysis was more important in patients with an evolutive IBD than in patients with IBD in remission. Impaired systemic fibrinolytic capacity might contribute to an increased risk for thromboembolic complications and to the pathogenesis of inflammatory bowel disease.

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(Lancet. 2016;388:2629–2641) Placenta-mediated pregnancy complications include preeclampsia, birth of a small for gestational age (SGA) neonate, placental abruption, and late pregnancy loss. They are significant contributors to maternal and neonatal morbidity and mortality. Patients experiencing these complications are also at risk of placenta-mediated complications occurring in subsequent pregnancies. Effective preventive measures for these complications are generally lacking. The current investigators had previously published a study-level meta-analysis that indicated low–molecular-weight heparin (LMWH) could reduce the risk of recurrence. However, there was significant heterogeneity in that study so they decided to perform an individual patient data meta-analysis to evaluate the efficacy of LMWH to prevent recurrent placenta-mediated complications in subsequent pregnancies.