Breath-dependent pressure fluctuations in various constant- and variable-flow neonatal CPAP devices.

ABSTRACT:

Objective

In continuous positive airway pressure (CPAP) devices, pressure can be generated by two different mechanisms: either via an expiratory valve or by one or more jets. Valved CPAP devices are referred to as constant-flow devices, and jet devices are called variable-flow devices. Constant-flow CPAP devices are said to reduce the imposed work of breathing due to lower breath-dependent pressure fluctuations. The present study investigates the performance of various constant- and variable-flow CPAP devices in relation to breath-dependent pressure fluctuations.

Design

Experimental study comparing the pressure fluctuations incurred by seven neonatal CPAP devices attached to an active neonatal lung model.

Methodology

Spontaneous breathing was simulated using a tidal v

SUBMITTER: Auer-Hackenberg L 

PROVIDER: S-EPMC9796268 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature