The relationship between systolic blood pressure and mortality in trauma patients with hemorrhage. These data suggest that a systolic blood pressure of less than 110 mmHg is a clinically relevant definition of hypotension and hypoperfusion based on an increasing rate of mortality below this pressure. Base deficit (BD) is also shown on this graph. ED = emergency department. (Reproduced with permission from Eastridge BJ, Salinas J, McManus JG, et al.52 Hypotension begins at 110 mm Hg: redefining “hypotension” with data. J Trauma. 2007;63:291–297.) Source: Shock, Schwartz's Principles of Surgery, 10e Citation: Brunicardi F, Andersen DK, Billiar TR, Dunn DL, Hunter JG, Matthews JB, Pollock RE. Schwartz's Principles of Surgery, 10e; 2014 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/980/bru_ch5_f007.png&sec=100392027&BookID=980&ChapterSecID=59610846&imagename= Accessed: September 25, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved