Volumetric capnography is an interesting and non-invasive tool for monitoring ventilation in mechanically ventilated patients. The aim of this study was to test the effect of positive pressure ventilation and different body positions on volumetric capnograms.
In this interventional study awake and healthy volunteers will be submitted to spontaneous, pressure support and control pressure ventilation using a tight nasal mask. Volumetric capnography and electrical impedance tomography (EIT) will be continuously recorded during the protocol. Different body positions were randomly tested. Analysis of global and regional distribution of ventilation using EIT will be matched with changes observed in volumetric capnography-derived parameters.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
10
positive pressure ventilation at different body positions
Hospital Privado de Comunidad
Mar del Plata, Buenos Aires, Argentina
Analysis of the changes in volumetric capnographic parameters with changes in body positioning and positive pressure ventilation.
The volunteers are breathing spontaneously with and without positive pressure support. Capnographic parameters were registered at each studied condition.
Time frame: 4 hours
Electrical impedance images of the distribution of ventilation with changes in body positioning and positive pressure ventilation.
The volunteers are breathing spontaneously with and without positive pressure support. Electrical impedance images were taken at each studied condition.
Time frame: 4 hours
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