Refractory ineffective triggering during pressure support ventilation: effect of proportional assist ventilation with load-adjustable gain factors.

ABSTRACT:

Background

Ineffective triggering is frequent during pressure support ventilation (PSV) and may persist despite ventilator adjustment, leading to refractory asynchrony. We aimed to assess the effect of proportional assist ventilation with load-adjustable gain factors (PAV+) on the occurrence of refractory ineffective triggering.

Design

Observational assessment followed by prospective cross-over physiological study.

Setting

Academic medical ICU.

Patients

Ineffective triggering was detected during PSV by a twice-daily inspection of the ventilator's screen. The impact of pressure support level (PSL) adjustments on the occurrence of asynchrony was recorded. Patients experiencing refractory ineffective triggering, defined as persisting asynchrony at the lowest toler

SUBMITTER: Haudebourg AF 

PROVIDER: S-EPMC8527439 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature