Copyright information:Taken from "Prone positioning does not affect cannula function during extracorporeal membrane oxygenation or continuous renal replacement therapy"Critical Care 2002;6(5):452-455.Published online 29 Aug 2002PMCID:PMC130148.Copyright © 2002 Goettler et al., licensee BioMed Central Ltd An operative pillow with a cutout for the endotracheal tube is used. Prior to disconnecting the endotracheal tube, it is clamped to prevent loss of positive end expiratory pressure.