The efficacy and safety of pharmacologic thromboprophylaxis following caesarean section: A systematic review and meta-analysis

Objective Our purpose is to evaluate the efficacy and safety of pharmacologic thromboprophylaxis following caesarean section (CS). Methods We searched PubMed, Embase, and the Cochrane Library. Then the systematic review was performed by analysing studies that met the eligibility criteria. Results Seven studies with 1243 participants were included, including 6 RCTs and 1 prospective cohort. Results from the meta-analysis showed that low molecular weight heparin (LMWH) was associated with no obvious decrease in the risk of thrombus compared with UHF and negative control. However, LMWH was observed to be associated with a definite increase in the risk of bleeding or haematomas in comparison to negative control (RR: 8.47, CI: 1.52-47.11). Conclusion According to current evidences, the efficacy of pharmacologic thromboprophylaxis which increases the risk of bleeding or hematomas remains controversial.