Intensive care medicine
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Intensive care medicine · Nov 2008
Randomized Controlled Trial Comparative StudyProportional assist ventilation with load-adjustable gain factors in critically ill patients: comparison with pressure support.
It is not known if proportional assist ventilation with load-adjustable gain factors (PAV+) may be used as a mode of support in critically ill patients. The aim of this study was to examine the effectiveness of sustained use of PAV+ in critically ill patients and compare it with pressure support ventilation (PS). ⋯ PAV+ may be used as a useful mode of support in critically ill patients. Compared to PS, PAV+ increases the probability of remaining on spontaneous breathing, while it considerably reduces the incidence of patient-ventilator asynchronies.
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Intensive care medicine · Nov 2008
Randomized Controlled TrialPhysiologic response to varying levels of pressure support and neurally adjusted ventilatory assist in patients with acute respiratory failure.
Neurally adjusted ventilatory assist (NAVA) is a new mode wherein the assistance is provided in proportion to diaphragm electrical activity (EAdi). We assessed the physiologic response to varying levels of NAVA and pressure support ventilation (PSV). ⋯ Compared to PSV, NAVA averted the risk of over-assistance, avoided patient-ventilator asynchrony, and improved patient-ventilator interaction.