Neurally adjusted ventilatory assist | 合法醫療器材資訊網

由PNavalesi著作·2015·被引用41次—Firstdescribedinitsgeneralprinciples15yearsago,neurallyadjustedventilatoryassist(NAVA)isamodeofpartialventilatoryassistancethathasbecome ...

First described in its general principles 15 years ago [1], neurally adjusted ventilatory assist (NAVA) is a mode of partial ventilatory assistance that has become commercially available in the last few years. With proportional assist ventilation (PAV), NAVA is the only mode of ventilation delivering assistance in proportion to a patients demand [2]. Although with both PAV and NAVA the assistance remains under the patients control, PAV utilizes ‘conventional’ pneumatic signals, such as flow and volume, whereas NAVA has the unique feature to control ventilator functioning through the electrical activity of the diaphragm (EAdi). In NAVA, in fact, the mechanical support is on-triggered and off-triggered by the EAdi, as assessed by transesophageal electromyography, and is proportional to EAdi throughout each inspiration [1]. The EAdi signal is obtained through a dedicated feeding tube...