This eBook is one of 10 carefully selected collections of key articles from the Anaesthesia and Intensive Care Medicine journal - a continually updated, evidence-based learning resource, based on the RCOA Curriculum. It is ideal for trainees approaching a new sub-specialty and/or when preparing for the FRCA (or similar) exams. It will also prove an invaluable, authoritative refresher for life-long learning and CPD. Related MCQs are included to test your understanding.