Inappropriate use of neurally adjusted ventilator assist

Neurally adjusted ventilatory assist

PURPOSE OF REVIEW Compared with the conventional forms of partial support, neurally adjusted ventilatory assist was repeatedly shown to improve patient-ventilator synchrony and reduce the risk of overassistance, while guaranteeing adequate inspiratory effort and gas exchange. A few animal studies also suggested the potential of neurally adjusted ventilatory assist in averting the risk of ventil...

Neurally-adjusted Ventilatory Assist

Neurally adjusted ventilatory assist and proportional assist ventilation both improve patient-ventilator interaction

INTRODUCTION The objective was to compare the impact of three assistance levels of different modes of mechanical ventilation; neurally adjusted ventilatory assist (NAVA), proportional assist ventilation (PAV), and pressure support ventilation (PSV) on major features of patient-ventilator interaction. METHODS PSV, NAVA, and PAV were set to obtain a tidal volume (VT) of 6 to 8 ml/kg (PSV₁₀₀, NA...

Neurally adjusted ventilatory assist feasibility during anaesthesia

Data are expressed as median (IQR). Data are expressed as median (IQR). CVvt%, coefficient of variation of the tidal volume expressed as percentage.

Proportional assist ventilation and neurally adjusted ventilatory assist.

Patient-ventilator synchrony is a common problem with all patients actively triggering the mechanical ventilator. In many cases synchrony can be improved by vigilant adjustments by the managing clinician. However, in most institutions clinicians are not able to spend the time necessary to ensure synchrony in all patients. Proportional assist ventilation (PAV) and neurally adjusted ventilatory a...