"The 2017 Critical Care Reviews Book seeks to summarise, critique and put in context the best critical care trials of 2016. Five intensivsts working in Northern Ireland have spent the past year writing this edition. Our choices are largely subjective and clearly some major studies may have been excluded, but we feel we have captured the essence of the critical care research output from the past 12 months. We hope you enjoy this work and find it useful in your daily practice..."