The Harvard-Emory ECG Database (HEEDB) is a large collection of routine clinical 12-lead ECGs, each 10 s at 250 or 500 Hz, from Massachusetts General Hospital (10.6 million ECGs from 1.8 million patients) and Emory University Hospital (about 1 million ECGs from 349,548 patients). Recordings come with metadata, GE 12SL labels including physician overreads (added in version 5.0) and ICD-9/10 codes, in WFDB format. It is part of the NHLBI-funded Human Sleep Project and is available on BDSP to credentialed researchers under a data use agreement.
The Harvard-Emory ECG database (HEEDB) is a large collection of 12-lead electrocardiography (ECG) recordings, prepared through a collaboration between Harvard University and Emory University investigators.
In version 1.0 of the database, these ECGs from Massachusetts General Brigham hospital sites were provided without labels or metadata, to enable pre- training of ECG analysis models.
In version 2.0, metadata is included.
In version 3.0, Emory ECGs are included together with metadata, labels from the 12SL ECG analysis program (GE Healthcare ) and ICD-9/10 codes.
In version 4.0, typos were corrected in the data description.
HEEDB is published as part of the Human Sleep Project (HSP), funded by a grant (R01HL161253) from the National Heart Lung and Blood Institute (NHLBI) of the NIH to Massachusetts General Hospital, Emory University, Stanford University, Kaiser Permanente, Boston Children's Hospital, and Beth Israel Deaconess Medical Center.
Verbatim fromDataCite· Description as registered with DataCite
#52 of 117 most-used datasets by published papers and models · #24 of 54 ECG
Browse these 2 papers in the research explorer (filtered to Harvard-Emory ECG Database (HEEDB v5.0))
Harvard-Emory ECG Database (HEEDB v5.0) [Data set]. (n.d.). bdsp. https://doi.org/10.60508/rv6h-7d10
@misc{heedbharvardemory,
title = {{Harvard-Emory ECG Database (HEEDB v5.0)}},
howpublished = {bdsp},
doi = {10.60508/rv6h-7d10}
}Cite the dated snapshot 2026-10 for a fixed, reproducible version. Please also cite the original publications listed above.
ChatPPG. (2026). Harvard-Emory ECG Database (HEEDB v5.0): dataset record (Version 2026-10) [Data set]. ChatPPG Research Hub. https://chatppg.com/research/datasets/heedb
@misc{chatppg_dataset_heedb,
author = {{ChatPPG}},
title = {{Harvard-Emory ECG Database (HEEDB v5.0): dataset record}},
year = {2026},
month = nov,
version = {2026-10},
howpublished = {\url{https://chatppg.com/research/datasets/heedb}},
note = {ChatPPG Research Hub, Snapshot 2026-10, https://chatppg.com/research/snapshots/2026-10}
}cff-version: 1.2.0 message: "If you use this resource, please cite it as below." type: dataset title: "Harvard-Emory ECG Database (HEEDB v5.0): dataset record" authors: - name: "ChatPPG" url: "https://chatppg.com/research/datasets/heedb" repository-artifact: "https://chatppg.com/research/snapshots/2026-10" version: "2026-10" date-released: "2026-11-02"
Record updated
ECGFounder: An ECG Foundation Model Built on 10+ Million RecordingsUses Harvard-Emory ECG Database (HEEDB v5.0)arXiv preprint · 2024
Prediction of cardiovascular outcomes using electrocardiography from overnight polysomnographyShared topic: mghSLEEP · 2026
Boston Children's Hospital Sleep Corpus v1.0.1Shared topic: bdsp15,695 pediatric clinical PSGs (2010-2024) with staging, respiratory events and >1.17M arousals (BDSP credentialed)ECG · SpO₂ · PSG
EchoNext-MiniShared topic: 12 lead100,000 clinical 12-lead ECGs (250 Hz) with echocardiogram-confirmed structural heart disease labels (Columbia, PhysioNet restricted)36,286 subjects · ECG