Intensive care medicine
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Intensive care medicine · Jan 2007
Randomized Controlled Trial Comparative StudyNon-invasive ventilation in chronic obstructive pulmonary disease patients: helmet versus facial mask.
The helmet is a new interface with the potential of increasing the success rate of non-invasive ventilation by improving tolerance. ⋯ Helmet and facial mask were equally tolerated and both were effective in ameliorating gas exchange and decreasing inspiratory effort. The helmet, however, was less efficient in decreasing inspiratory effort and worsened the patient-ventilator interaction.
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Intensive care medicine · Jan 2007
Randomized Controlled TrialDanger of helmet continuous positive airway pressure during failure of fresh gas source supply.
To assess the behavior of different helmets after discontinuation of fresh gas flow by disconnection at the helmet inlet, flow generator, or gas source. ⋯ While the use of a safety valve proved effective in limiting CO2 rebreathing, it did not protect from the risk of hypoxia related to decrease in FIO2 and loss of PEEP. In addition to a safety antisuffocation valve, a dedicated monitoring and alarming systems are needed to employ helmet CPAP safely.