Les interventions étaient la pression de distension continue y compris la pression positive continue (PPC) administrée par masque, sonde nasale, sonde nasopharyngée ou sonde endotrachéale, ou la pression négative continue (PNC) via un caisson renfermant le thorax et la partie inférieure du corps du patient, comparées aux soins de routine.
Interventions were continuous distending pressure including continuous positive airway pressure (CPAP) by mask, nasal prong, nasopharyngeal tube, or endotracheal tube, or continuous negative pressure (CNP) via a chamber enclosing the thorax and lower body, compared with standard care.