This systematic review and network meta-analysis revealed that the use of low-molecular-weight heparin (LMWH) may be more effective than unfractionated heparin (UFH) in reducing incidence of deep vein thrombosis (DVT) among critically ill patients.

Many associated factors are modifiable indicating potential benefit from planned strategies.

An analysis of vital registration data from the WHO Mortality Database (2000-2015).

Guidelines recommend postoperative prophylactic anticoagulation for 1-5 weeks.