Subcostal echo method for measuring cardiac output
Official title: Discontinuous Echocardiographic Subcostal Cardiac Output Measurement by the Right Ventricular Outflow Tract in Critical Care
Run by University Hospital, Rouen · NCT07177391 · Data updated 2026-11-12
This project tries a subcostal (under-the-rib) echocardiogram method to measure cardiac output in adult ICU patients who need echocardiography.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | University Hospital, Rouen Academic / other |
| Locations | 1 site (Rouen) |
| Status | Recruiting |
| Started | November 25, 2024 |
| Main results expected | September 9, 2025 |
| Study ends | October 30, 2025 |
| Registry record updated | September 17, 2025 |
| Trial ID | NCT07177391 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adult patients (≥18 years) admitted to the Rouen University Hospital ICU who require transthoracic echocardiography for diagnosis or therapeutic monitoring are eligible.
✕Probably not a fit
Patients who are pregnant, actively dying, legally incapacitated without consent, not affiliated with social security, or those who refuse participation are excluded and unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational project uses the subcostal transthoracic echocardiography route to obtain right ventricular outflow tract measurements and time-velocity integrals to calculate cardiac output without adding invasive devices. Measurements are taken during routine echocardiographic exams in adult patients admitted to the Rouen University Hospital intensive care unit, adding only seconds or minutes to standard practice. The method applies the same mathematical principles used for left ventricular outflow tract cardiac output calculation but via the subcostal view and right ventricular outflow tract. Data will describe feasibility, image quality, and the practicality of discontinuous subcostal cardiac output measurement in critically ill, less mobilizable patients.
Why it matters
Potential benefit: If successful, this method could provide a quicker, less invasive, and lower-cost way to monitor cardiac output at the bedside in critically ill patients.
How similar studies have gone: Echocardiography-based cardiac output measurement via the left ventricular outflow tract is established, but using a subcostal right ventricular outflow tract approach for cardiac output has not been described in the literature and is therefore novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult patient (Age ≥ 18 years) * Patient admitted to the intensive care unit at Rouen University Hospital. * Transthoracic echocardiography (TTE) is required upon admission or during the patient's stay for diagnostic assessment and/or therapeutic monitoring. Exclusion Criteria: * Person deprived of liberty by an administrative or judicial decision or person placed under judicial protection/guardianship or curatorship * Patient not affiliated with the social security system * Refusal by the patient or trusted person if the patient is incapable of expressing consent * Pregnant woman * Dying patient
Where it's running
-
University Rouen Hospital
Rouen, France Recruiting
Study contacts
- Study coordinator: Thomas TM MAUDHUIZON, Doctor
- Email: t.maudhuizon@gmail.com
- Phone: 02 32 88 82 61
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.