Cancer Therapy-Related Cardiac Dysfunction, Heart Failure, Left Ventricular Dysfunction
Conditions
Keywords
Cardiotoxicity, Electrocardiography, Chemotherapy, AI-ECG, CTRCD, Risk Stratification, Cardio-Oncology
Brief summary
This study investigates the use of AI-enhanced electrocardiogram (ECG) for risk stratification of cancer therapy-related cardiac dysfunction (CTRCD) before the initiation of cancer therapy. The study includes patients treated with anthracyclines, HER2 inhibitors, or immune checkpoint inhibitors (ICIs) at Severance Hospital between May 2006 and November 2022, who underwent an ECG within 90 days prior to chemotherapy. The primary goal is to evaluate whether AI-ECG can accurately predict the risk of CTRCD and compare its performance to existing risk stratification models. In addition, we aim to assess whether the variation in AI-ECG scores between pre- and post-chemotherapy assessments could serve as a predictor of CTRCD. Eligible participants are adults without prior heart failure, cardiomyopathy, or myocarditis, and with baseline left ventricular ejection fraction (LVEF) ≥40%. For trajectory analysis, only patients with an additional ECG within 90 days after chemotherapy are included. The primary outcome is the development of CTRCD within 12 months after the last treatment cycle (and no more than 24 months after the first). The secondary outcomes are severe CTRCD (LVEF \<40%) and all-cause mortality. This study aims to validate the clinical utility of AI-enhanced ECG as a simple, accessible, and cost-effective tool for predicting CTRCD across diverse cancer treatment regimens, including newer immunotherapies.
Interventions
OTHERNo intervention (retrospective observational study)
This is a retrospective observational study using existing clinical data. No intervention or diagnostic procedure is applied to participants.
Sponsors
Yonsei University
Korea Health Industry Development Institute
VUNO Inc.
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients prescribed anthracycline (doxorubicin, daunorubicin, epirubicin, aclarubicin, idarubicin), HER2 inhibitor (trastuzumab, emtansine, tucatinib, trastuzumab deruxtecan, pertuzumab), or immune checkpoint inhibitors (ipilimumab, nivolumab, atezolizumab, pembrolizumab, durvalumab, avelumab) * ECG performed within 90 days prior to the first chemotherapy treatment * Age ≥ 19 years * For trajectory analysis: patients with an additional ECG within 90 days after the first chemotherapy
Exclusion criteria
* Age \< 19 years * History of heart failure, cardiomyopathy, or myocarditis (confirmed by ICD codes) * Prior exposure to anthracycline, HER2 inhibitor, or immune checkpoint inhibitor therapy * Baseline left ventricular ejection fraction (LVEF) \< 40% on echocardiography within 1 year prior to chemotherapy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of cancer therapy-related cardiac dysfunction (CTRCD) | From initiation of first chemotherapy up to 24 months. | CTRCD defined as ≥10%p drop in left ventricular ejection fraction (LVEF) from baseline to 40% to 49.9% OR \<10%p drop to 40-49.9% with a reduction in GLS by \>15% OR new LVEF reduction to \<40% from baseline LVEF, OR hospitalization for heart failure or diagnosis of cardiomyopathy defined by ICD codes,, diagnosed within 12 months after the last treatment cycle and no more than 24 months after the first cycle cardiotoxic cancer therapy. LVEF is assessed by either echocardiography or MUGA (Multi-gated acquisition nuclear imaging) scan. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| All-cause mortality | From initiation of first chemotherapy up to 24 months. | Death from any cause during the follow-up period. |
Countries
South Korea
Outcome results
None listed