“…16,18,20,[23][24][25][26][27][28]31,35,40,42,43 Ten studies included deep venous thrombosis (DVT) in their definition 16,18,20,23,24,26,27,40,42,43 and seven studies included pulmonary embolism (PE). 16,18,20,23,24,27,42 Four studies included any National Surgical Quality Improvement Program-defined endpoints such as PE, myocardial infarction, pneumonia, urinary tract infection, sepsis, stroke, and coma in their definition. 16,20,24,27…”