Comment on

• The Shock Index revisited - a fast guide to transfusion requirement? A retrospective analysis on 21,853 patients derived from the TraumaRegister DGU.

  Mutschler M, Nienaber U, Münzberg M, Wölfl C, Schoechl H, Paffrath T, Bouillon B, Maegele M; TraumaRegister DGU. Mutschler M, et al. Crit Care. 2013 Aug 12;17(4):R172. doi: 10.1186/cc12851. Crit Care. 2013. PMID: 23938104 Free PMC article.
• Shock index: blunt clinical predictions.

  Li B, Fanning C, Patel A, Parikh A. Li B, et al. Crit Care. 2013 Nov 21;17(6):468. doi: 10.1186/cc13125. Crit Care. 2013. PMID: 24257460 Free PMC article. No abstract available.