Comparison of Actual Tidal Volume in Neonatal Lung Model Volume Control Ventilation using Three Ventilators

Delivery of tidal volume from four anaesthesia ventilators during volume-controlled ventilation: a bench study.

BACKGROUND Tidal volume (V(T)) must be accurately delivered by anaesthesia ventilators in the volume-controlled ventilation mode in order for lung protective ventilation to be effective. However, the impact of fresh gas flow (FGF) and lung mechanics on delivery of V(T) by the newest anaesthesia ventilators has not been reported. METHODS We measured delivered V(T) (V(TI)) from four anaesthesia...

Intraoperative low-tidal-volume ventilation.

RESPIRATION AND THE AIRWAY Delivery of tidal volume from four anaesthesia ventilators during volume-controlled ventilation: a bench study

Editor’s key points † This study investigated the accuracy of delivered tidal volume in four new ventilators under different conditions. † Set and delivered tidal volumes differed when compliance and resistance were changed, although the effect of fresh gas flow was less. † Some of the new ventilators tested were more accurate than others. † The clinical significance of these findings is uncert...

Ventilation with high tidal volume induces inflammatory lung injury.

Mechanical ventilation with high tidal volumes (V(T)) has been shown to induce lung injury. We examined the hypothesis that this procedure induces lung injury with inflammatory features. Anesthetized male Wistar rats were randomized into three groups: group 1 (N = 12): V(T) = 7 ml/kg, respiratory rate (RR) = 50 breaths/min; group 2 (N = 10): V(T) = 21 ml/kg, RR = 16 breaths/min; group 3 (N = 11...

Inaccuracy of tidal volume delivered by home mechanical ventilators.

Ideally, the inspired (tidal) volume (V(T)) provided by a volume-controlled ventilation device should not change when the pressure imposed on the ventilator varies. A bench study evaluation of V(T) versus pressure was performed on 10 commercially available devices. The difference between the desired V(T) and the observed V(T) reached 100 mL for some devices when inspiratory resistance was at it...