Junior doctors working in the intensive care unit are often confused by the various methods of respiratory support used for patients with severe respiratory failure. This book describes the physiological changes induced by mechanical ventilation, the different methods of respiratory support designed to minimise these changes, the indications for their use, and their advantages and disadvantages. It traces the evolution of modern computer controlled ventilators, and compares the basic principles of the commonly used machines. Further chapters deal with the choice and care of the artificial airway; the general care of the patient; and non- invasive methods that do not require tracheal intubation. This well illustrated, comprehensive text stresses the basic principles and provides a clear, up to date account of modern practice in this rapidly changing field.