Dr Steve Benington MBChB, MRCP, FRCA, EDIC, FFICM Consultant in Intensive Care Medicine & Anaesthesia, Central Manchester Foundation Trust, UK Peter Nightingale FRCA FRCP is Consultant in Intensive Care & Anaesthesia, Intensive Care Unit, Wythenshawe Hospital, Manchester. Maire Shelly MB ChB FRCA is Consultant in Intensive Care & Anaesthesia, Intensive Care Unit, Wythenshawe Hospital, Manchester.