About this trial
This prospective observational cohort study aims to evaluate the clinical performance of a deep learning-based electrocardiography (ECG) algorithm (DeepECG LVSD) for detecting left ventricular systolic dysfunction (LVSD), defined as left ventricular ejection fraction (LVEF) ≤40%, using transthoracic echocardiography as the reference standard. Approximately 15,000 adult patients undergoing both ECG and echocardiography within 30 days at Ajou University Hospital will be enrolled. Diagnostic performance will be assessed using the area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, positive predictive value, negative predictive value, and accuracy. Secondary analyses will evaluate the association between AI-predicted LVSD and 30-day clinical outcomes, including all-cause mortality, emergency department visits, and heart failure rehospitalization.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults aged ≥19 years.
Patients who underwent both transthoracic echocardiography and 12-lead electrocardiography (ECG) at Ajou University Hospital in the outpatient, inpatient, or emergency department setting.
ECG and echocardiography performed within 30 days of each other.
Disqualifiers
Interval between ECG and echocardiography greater than 30 days.
Missing or corrupted original ECG waveform data (XML or HL7 format).
Presence of an implanted cardiac device, including a permanent pacemaker, implantable cardioverter-defibrillator (ICD), or cardiac resynchronization therapy (CRT) device.
Missing age, sex, or left ventricular ejection fraction (LVEF) data.
Trial population
Adult patients aged 19 years or older undergoing routine clinical care at Ajou University Hospital who have both transthoracic echocardiography and 12-lead electrocardiography (ECG) performed within 30 days. Participants may be recruited from outpatient clinics, inpatient wards, or the emergency department.
Trial design
Cohort
Prospective
Treatments tested in this trial
None-placebo
Other interventionThere is no intervention group
Treatment groups
Trial outcomes
Primary outcomes
AUROC for detection of LVSD (LVEF ≤40%)
Diagnostic performance including AUROC, sensitivity, specificity, positive predictive value, negative predictive value, and accuracy.
Sponsors and contacts
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Ajou University School of Medicine
Lead sponsor
VUNO Inc.
Collaborator