ASSESSMENT OF FUNCTIONAL RESIDUAL CAPACITY AND OXYGEN CONSUMPTION DURING PEEP
TRIAL PROCEDURE
Ruchina E.V., Charnin S.A., Lebedinsky K.M., Mazurok V.A.
North-Western State Medical University named after I.I. Mechnikov, 191015, Saint-Petersburg, Russia
Purpose of the study was to compare the functional residual capacity and oxygen consumption with
compliance and partial pressure of oxygen during automatic PEEP trial procedure — "PEEP INview".
Material and methods; Dynamics of functional residual capacity, oxygen consumption, compliance and
partial pressure of oxygen were studied in 14 patients at cardiac surgical unit during automatic PEEP trial
procedure — "PEEP INview". Results; Signifi cant dynamics of compliance and carbon dioxide production
was not found. Partial pressure of oxygen cannot be used as the guideline in this study. Functional residual
capacity increased in each incremental level of PEEP. Oxygen consumption increased during the PEEP
changing from 6 to 8 cmH2O. Conclusion; It is defined that oxygen consumption is sensitive to PEEP level.
Therefore the maximum diagnostics value of functional residual capacity measuring is expected in patients
with restrictive lung disease.
Key words: mechanical ventilation, functional residual capacity, oxygen consumption, compliance, positive
end-expiratory pressure
AN-1303-054
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