- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00446706
Estimation of Intrinsic Positive End-Expiratory Pressure (PEEP) in Acute Respiratory Distress Syndrome (ARDS)
ARDS (Acute Respiratory Distress Syndrome) is a condition of severe inflammation and excess fluids in the lungs that impairs their function of oxygen uptake to the point of needing a ventilator (breathing machine) to help them obtain enough oxygen into the body. Because of the high amounts of gas that the ventilator has to give to these patients, high pressures may develop deep into the lungs and produce complications for the patient. However, physicians sometimes cannot recognize it because it requires special equipment to measure pressure deep in the lungs. The goal of this study is to determine if the amount of this pressure can be calculated using mathematical formulas and the routine numbers provided by ventilators. The study consists on making the conventional measurement of this deep pressure and at the same time calculate this same pressure from other measurements that the ventilator routinely provides, to see if the calculated value can replace the more complicated conventional measurement. The measurements will be done by:
- placing a small device along the tubing connecting the patient to the ventilator;
- giving medicines to relax the muscles (if the patient is not already receiving them); and
- making the ventilator hold the patient's breath for a few seconds to take measurements.
This is repeated after the breathing rate of the ventilator is increased or decreased mildly. Risks related to the medicine to be used and the measuring maneuvers are rare but include transient narrowing of windpipes, transiently low heart rate, blood pressure or blood oxygen, and allergic reactions. This is not a treatment. The information obtained during the study will be shared with the treating doctors who may find it useful to make adjustments to the ventilator. The patient may receive no direct benefit from being in this study; however, the findings may contribute to better care for this kind of patients in the future.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Texas
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El Paso, Texas, United States, 79905
- Thomason Hospital (Now University Medical Center)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Patients 18 years of age or older with diagnosis of ARDS, as defined by the American- European Consensus Conference 4
- Receiving mechanical ventilation.
- Presence of autoPEEP by inspection of flow-time waveforms displayed by the mechanical ventilator.
Exclusion Criteria:
- Known or suspected diagnosis of COPD or airflow limitation.
- Next of kin not available to consent.
- Contraindication to receive a muscle relaxant when measurements may be inaccurate without its administration.
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Only
- Time Perspectives: Prospective
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Agreement between Measured and Estimated Intrinsic PEEP
Time Frame: The day and time of measurement
|
Bias and its standard deviation
|
The day and time of measurement
|
Collaborators and Investigators
Investigators
- Principal Investigator: Juan Figueroa-Casas, MD, Texas Tech University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Estimation PEEPi
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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