Lung Recruitment Assessed by 2D/3D-EIT and R/I Ratio in Acute Respiratory Failure Patients With Mechanical Ventilation
Lung Recruitment Assessed by Two-Dimensional/Three-Dimensional Electrical Impedance Tomography and Recruitment-to-Inflation Ratio in Acute Respiratory Failure Patients With Mechanical Ventilation
Peking Union Medical College Hospital
50 participants
Sep 1, 2025
OBSERVATIONAL
Conditions
Summary
The purpose of this observational study is to assess the differences and consistency in evaluating lung recruitment potential between the recruitment-to-inflation ratio (R/I ratio) and three-dimensional electrical impedance tomography (3D-EIT) and two-dimensional EIT (2D-EIT) in mechanically ventilated patients with acute respiratory failure. The main questions it aims to answer is: Are the lung recruitment potentials predicted by 3D-EIT, 2D-EIT and the R/I ratio consistent? Participants will: Undergo a standardized PEEP titration protocol with synchronized EIT monitoring; Have R/I ratios measured at high and low PEEP levels.
Eligibility
Plain Language Summary
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Interventions
The patient will undergo a standardized PEEP titration procedure and determination of the Recruitment-to-Inflation ratio (R/I ratio), with concurrent monitoring by both 2D- and 3D- EIT.
Locations(1)
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NCT07379242