After publication of this work [1], we noted that we inadvertently failed to add the registration number of this randomised controlled trial. An International Standard Randomised Controlled Trial Number (ISRCTN) has been granted and the title of the manuscript should read as follows:

Influence of support on intra-abdominal pressure, hepatic kinetics of indocyanine green and extravascular lung water during prone positioning in patients with ARDS: a randomized crossover study [ISRCTN67999735].