Leg Vein Ultrasound to Detect High Heart Pressure in People With Heart Disease
Tests a leg ultrasound measurement for spotting high heart pressure in adults having catheterization.
Key facts
- Who runs it
- Burapha University
- Where
- Chon Buri, ThailandSee the site
- Trial code
- Registry title
- Common Femoral Vein-to-Artery Diameter Ratio for Detection of Elevated LVEDP
- Status
- Completed
- People taking part
- 105 people enrolled
- Started
- 5 Nov 2025
- Ended
- 3 Nov 2026
- Type of study
- Observational
- Treatments tested
- Ultrasound Measurement of Common Femoral Vein-to-Artery Diameter Ratio
- Record updated
- 12 November 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults who are scheduled for coronary angiography with left heart catheterization. An ultrasound of the groin veins and arteries is compared with a pressure measurement in the heart.
- Age
- 18 to 100 years
- Sex
- All sexes can join.
Main reasons for not taking part
- Contraindications to cardiac catheterization
- Ultrasound measurements of the common femoral vein or artery diameter cannot be obtained accurately
- A guidewire cannot be advanced across the aortic valve into the left ventricle to measure LVEDP
The registry criteria, word for word
Show all 5 criteriaShow less
Who can take part
- Adult patients (aged ≥18 years)
- Adult patients were scheduled to undergo coronary angiography with left heart catheterization
Who cannot take part
- Contraindications to cardiac catheterization
- Inability to obtain accurate ultrasonographic measurements of the common femoral vein or common femoral artery diameters
- Inability to advance a guidewire across the aortic valve into the left ventricle for measurement of LVEDP
Where in Thailand
- Burapha University HospitalChon Buri, ThailandNo longer taking part
About the trial
What the trial wants to find out
This prospective cross-sectional diagnostic accuracy study enrolled patients undergoing coronary angiography and left heart catheterization at Burapha University Hospital, Thailand. The diameters of the common femoral vein and common femoral artery were measured using ultrasonography, and the common FVD/FAD ratio was calculated. LVEDP, measured during left heart catheterization, served as the reference standard. An elevated LVEDP (>16 mmHg) was defined as volume overload. Diagnostic performance was evaluated using receiver operating characteristic (ROC) curve analysis.
The group in the trial
- Patients Undergoing Left Heart Catheterization
Adults undergoing clinically indicated coronary angiography and left heart catheterization were enrolled in this prospective cross-sectional diagnostic accuracy study. All participants underwent ultrasound examination of the common femoral vein and common femoral artery to measure their diameters and calculate the common femoral vein-to-artery diameter ratio. Left ventricular end-diastolic pressure was measured during left heart catheterization as the reference standard. No study intervention was administered.
Treatment: Ultrasound Measurement of Common Femoral Vein-to-Artery Diameter Ratio
Data and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Common Femoral Vein-to-Artery Diameter Ratio for Detection of Elevated Left Ventricular End-Diastolic Pressure: Diagnostic Accuracy Study
- Plain-language title
- Leg Vein Ultrasound to Detect High Heart Pressure in People With Heart DiseaseGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 9 November 2026.
- Record updated
- 12 November 2026