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Gas Exchange and CT Effects of PEEP in ARDS

Does a Bedside Method for Describing Functional Gas Exchange Compare Well With Anatomical Description Via CT Scans, and Could it Predict the Effects of Recruitment and Ventilation/Perfusion Mismatch Improvement

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04067154
Enrollment
13
Registered
2019-08-26
Start date
2012-08-01
Completion date
2014-08-01
Last updated
2019-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

ARDS

Brief summary

The study aims to investigate the association between effects of PEEP on gas exchange model parameters and CT scan results

Detailed description

In ARDS patients on mechanical ventilation, we will compare model-based estimation of gas exchange parameters (shunt, ventilation/perfusion mismatch) with CT-based estimation of effects of low and high PEEP

Interventions

DIAGNOSTIC_TESTALPE

Measurement of CT scan at PEEP of 5, 20 and 45 cm H2O Measurement of gas exchange by model-based method and FiO2 titration at PEEP of 5 and 20 cm H2O

Sponsors

Policlinico Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

\- ARDS patients requiring mechanical ventilation

Exclusion criteria

* \<18 years old * Requirement of extracorporal life support * Hemodynamic instability * Barotrauma

Design outcomes

Primary

MeasureTime frameDescription
Gas Exchange and lung recruitability at diferent PEEP levelsApproximately two hoursGas exchange (At PEEP 5 and 20 cm H2O), CT scan (At PEEP 5, 20 and 45 cm H2O)

Secondary

MeasureTime frameDescription
Physiologic Parameter 1Approximately two hoursHemodynamic assessment at different PEEP levels
Physiologic Parameter 2Approximately two hoursRespiratory mechanics at different PEEP levels

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026