Davide Chiumello, Monica Chierichetti, Federica Tallarini, Paola Cozzi, Massimo Cressoni, Federico Polli, Riccardo Colombo, Antonio Castelli & Luciano Gattinoni

Publicação: Critical Care volume 12, R55
Ano: 21 de abril de 2008




The helmet may be an effective interface for the delivery of noninvasive positive pressure ventilation. The high internal gas volume of the helmet can act as a ‘mixing chamber’, in which the humidity of the patient’s expired alveolar gases increases the humidity of the dry medical gases, thus avoiding the need for active humidification. We evaluated the temperature and humidity of respiratory gases inside the helmet, with and without a heated humidifier, during continuous positive airway pressure (CPAP) delivered with a helmet.