Effect of automated head-thorax elevation during chest compressions on lung ventilation: a model study.

ABSTRACT: Our goal was to investigate the effects of head-thorax elevation (HUP) during chest compressions (CC) on lung ventilation. A prospective study was performed on seven human cadavers. Chest was automatically compressed-decompressed in flat position and during progressive HUP from 18 to 35°. Lung ventilation was measured with electrical impedance tomography. In each cadaver, 5 sequences were randomly performed: one without CC at positive end-expiratory pressure (PEEP) 0cmH₂O, 3 s with CC at PEEP0, 5 or 10cmH₂O and 1 with CC and an impedance threshold device at PEEP0cmH₂O. The minimal-to-maximal change in impedance (VT_EIT in arbitrary unit a.u.) and the minimal impedance in every breathing cycle (EELI) the) were compared between flat, 18°, and 35° in

SUBMITTER: Duhem H 

PROVIDER: S-EPMC10663599 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature