Skip to content

PPG to Predict Ejection Fraction and Other Echographic Data in the General Population

Photoplethysmography (PPG) to Predict Ejection Fraction and Other Echographic Data in the General Population

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04843371
Enrollment
500
Registered
2021-04-13
Start date
2021-08-20
Completion date
2026-12-01
Last updated
2026-03-05

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

Conditions

Valvular Heart Disease, Pericardial Disease, Cardiomyopathies

Keywords

Structural heart disease, Photoplethysmography, Ejection Fraction

Brief summary

The investigators are aiming to investigate the association between ejection fraction (EF) determined by echocardiography and signals obtained from Photoplethysmography (PPG) in the general population. The investigators are also aiming to investigate the association between blood pressure and signals obtained from PPG in the general population. Finally, the investigators are also aiming to investigate the association between signals obtained from PPG in the general population to cardioechographic findings such as, valvular heart disease, structural heart diseases, cardiomyopathies, pericardial disease etc.

Detailed description

The investigators are proposing a cross-sectional cohort study, where any individual, 18 years old or older, scheduled for an echocardiography at Tulane University's outpatient cardiology clinic can be included. After consenting participants, information on their demographics, personal health habits, medications, and medical history will be collected via reviewing, their electronic medical health records. All participants will undergo an echocardiography as part of their routine medical care by their treating physician. Important echocardiographic findings will be noted such as, EF, valvular heart disease, pericardial disease, cardiomyopathies and structural heart disease. Additionally, PPG recordings will be collected simultaneously while performing echography using the Biostrap wristband. The investigators will analyze the association between each echographic imaging feature, and the PPG waveform obtained. PPG waveform features will be used to develop a predictive model capable of calculating an estimate of ventricular ejection fraction without echocardiography. All echocardiograms will be performed by experienced operators at Tulane Medical Center facilities. The study will occur at a single study site Tulane Medical Center and clinics, with appropriate facilities and equipment to conduct the study accurately and safely. An experienced echocardiogram technician or cardiology fellow will collect the PPG recordings using the Biostrap application. De-identified echocardiogram reports, including information on LVEF will be matched with the participant's pulse report.

Interventions

DIAGNOSTIC_TESTPhotoplethysmography

Photoplethysmography (PPG) is a non-invasive technique that can detect volumetric changes in the peripheral blood. It only requires skin contact and relies on light absorption. PPG is a good indicator of the cardiovascular dynamics in the human body. PPG has been incorporated into various new smartphones and wearable devices such as, smartwatches and fitness wristbands making it readily available to all consumers. This sensor can record biometrics such as, heart rate, blood pressure, oxygen saturation, etc.

Sponsors

Tulane University
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to 120 Years
Healthy volunteers
Yes

Inclusion criteria

* Male or Female aged18 years or older. * Patients scheduled to undergo an echocardiogram at Tulane Medical Center.

Exclusion criteria

* Participants under 18 years of age. * Participants with cognitive impairments. * Participants with a physical inability to wear the Biostrap during the echocardiogram. * Individuals who cannot read, speak, and/or understand English.

Design outcomes

Primary

MeasureTime frameDescription
Association between obtained PPG waveforms and recorded ejection (EF) fractions.Day 1Patients who will undergo echocardiogram will wear the biostrap watch and then the PPG waveform will be obtained. Then, the ejection fraction will be collected from the echocardiogram report. Then, the Artificial Intelligence (AI) staff member will do a predictive model to try and estimate the EF based on the PPG waveform.

Secondary

MeasureTime frameDescription
Association between blood pressure and PPG waveformsDay1The investigators will record the blood pressure of the patient twice during their visit. Then, the Artificial Intelligence (AI) staff member will do a predictive model to try and estimate the blood pressure based on the PPG waveform.

Countries

United States

Contacts

CONTACTMayana Bsoul, MD
mbsoul@tulane.edu504-988-3063
CONTACTKunal Sameer, MD, MHA
ksameer@tulane.edu504-988-3072
PRINCIPAL_INVESTIGATORNassir Marrouche, MD

Tulane University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026