“…A total of 22 studies were included in this review (eTable 1: Supplemental File, Figure 1). 2,3,5,6,10,11,12,[17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] Five studies addressed the definitions and elements for palliative care in the trauma and surgical critical care setting, [17][18][19][20][21] Nine studies investigated approaches for palliative care, [10][11][12][22][23][24][25][26][27] and 8 studies evaluated the impact of palliative care on patient outcomes. 2,3,5,6,[28][29][30][31] These studies included 16 cross-sectional studies, 2,5,6,10,11,17-23,25-27,31, 3 retrospective cohort studies, 12,28,…”