Abstract
Historical review of pressure breathing. The authors trace the origins of pressure breathing and relate them to today's practice. Intermittent positive pressure breathing (IPPB) began with mouth-to-mouth insufflation (Elisha, 800 BC, and Tossach, 1847). Mechanical devices took over as the lung inflating methods of artificial ventilation at the end of the 19th century. Continuous positive pressure breathing (CPPB) was introduced in 1935; a continuous pressure of 2 to 10 cm H2O was maintained throughout the respiratory cycle. The expiratory pressure tended to prevent collapse of the bronchial airway and the inspiratory pressure provided a slight assistance to expansion of the lungs. Positive end expiratory pressure (PEEP) was developed to include a high inspiratory pressure as well as a positive end expiratory pressure. It has become widely used for the treatment of the adult respiratory distress syndromes. Recently, CPPB has been employed in children and in adults for the treatment of acute respiratory failure.
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