Subject-ventilator synchrony during neural versus pneumatically triggered non-invasive helmet ventilation.

ABSTRACT:

Objective

Patient-ventilator synchrony during non-invasive pressure support ventilation with the helmet device is often compromised when conventional pneumatic triggering and cycling-off were used. A possible solution to this shortcoming is to replace the pneumatic triggering with neural triggering and cycling-off-using the diaphragm electrical activity (EA(di)). This signal is insensitive to leaks and to the compliance of the ventilator circuit.

Design

Randomized, single-blinded, experimental study.

Setting

University Hospital. PARTICIPANTS AND SUBJECTS: Seven healthy human volunteers.

Interventions

Pneumatic triggering and cycling-off were compared to neural triggering and cycling-off during NIV delivered with the helmet.

Measurements and results

Trigg

SUBMITTER: Moerer O 

PROVIDER: S-EPMC2517084 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature