NCT01161875

Impact of Neurally Adjusted Ventilator Assist (NAVA) Mode on Patient Ventilator Asynchrony Using Helmet

Study of the Benefit of the NAVA Mode Versus PSV Mode on Patient Ventilator Asynchrony During Non Invasive Ventilation With Helmet

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 10 (estimated)
• Sponsor: Pierre and Marie Curie University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Non invasive ventilation has been proposed to reduce the incidence of ventilatory dysfunction following abdominal aortic surgery. However, the nasogastric tube reduces the airtightness of the facial mask used to perform non invasive ventilation and induces air leaks. The use of a helmet reduces air leaks, thus seems adequate to ensure patient-ventilator interface. However, the high dead space related to helmet volume is responsible for asynchrony between patient demand and ventilatory support delivery. The investigators hypothesized driving the ventilator based on a neural signal (diaphragm electrical activity) would reduce patient-ventilator asynchronies.

Conditions

• Non-Invasive Positive-Pressure Ventilation

Interventions

Type	Name	Description
DEVICE	Neurally Adjusted Ventilatory Assistance	In ICU following abdominal aortic surgery, in extubated patient, non-invasive ventilation was performed as follows: * facial mask with non-invasive pressure support ventilation mode to define settings for helmet ventilation * helmet use with non-invasive pressure support ventilation mode to define adequate settings * helmet use with neurally adjusted ventilatory assist mode, based on previous settings

Timeline

• Start date: 2009-11-01
• Primary completion: 2010-12-01
• Completion: 2010-12-01
• First posted: 2010-07-14
• Last updated: 2011-08-05

Locations

1 site across 1 country: France