Post-Ictal Heart Rate Oscillations in Partial Epilepsy
Al-Aweel IC, Krishnamurthy KB, Hausdorff JM, Mietus JE, Ives JR, Blum AS, Schomer DL, Goldberger AL. Post-Ictal Heart Rate Oscillations in Partial Epilepsy. Neurology 53(7):1590-1592 (1999 October 22). https://physionet.org/physiobank/database/szdb/szdb.shtml
Pollard, T., Moody, B. E., Lehman, L., Gow, B., Fernandes, C., Xie, C., Johnson, A., Mark, R. G., & Heldt, T. (2026). PhysioNet as a global platform for biomedical research. Nature Health. https://doi.org/10.1038/s44360-026-00096-z. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC13641116/
Introduction
This database contains “post-ictal heart rate oscillations in a heterogeneous group of patients with partial epilepsy.
Data Description
This pattern is marked by the appearance of transient but prominent low-frequency heart rate oscillations (0.01 - 0.1 Hz) immediately following five of 11 seizures recorded in five patients. This finding may be a marker of neuroautonomic instability, and, therefore, may have implications for understanding perturbations of heart rate control associated with partial seizures.”
The annotated ECG recordings on which this study was based may be downloaded from this page. Each recording consists of a (text) header file (with suffix .hea), a (binary) signal file (with suffix .dat), and a (binary) annotation file (with suffix .ari); these files may be read using the WFDB software package. The text file times.seize indicates the intervals of the seizure in each recording, based on simultaneously recorded EEGs (not available).
Cited by
1 publication cites this project. The most recent are listed below.
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Automatic and manual prediction of epileptic seizures based on ECG
Manef Ben Mbarek, Ines Assali, Salah Hamdi et al. Signal Image and Video Processing, 2024.
Citation data from OpenAlex. Papers that use the project without citing it may be missing.
Files
Total uncompressed size: 23.2 MB.
Access the files
- Download the ZIP file (23.2 MB)
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Download with the PhysioNet Python package:
physionet download szdb --version 1.0.0
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Download the files using your terminal:
wget -r -N -c -np https://physionet.org/files/szdb/1.0.0/
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Download the files using AWS command line tools:
aws s3 sync --no-sign-request s3://physionet-open/szdb/1.0.0/ DESTINATION
| Name | Size | Modified |
|---|---|---|
| ANNOTATORS (download) | 58 B | 2000-10-13 |
| RECORDS (download) | 35 B | 2000-03-29 |
| SHA256SUMS.txt (download) | 2.8 KB | 2019-02-20 |
| sz01.ari (download) | 16.4 KB | 1998-05-01 |
| sz01.dat (download) | 2.1 MB | 1998-05-01 |
| sz01.hea (download) | 57 B | 2008-04-05 |
| sz01.hea- (download) | 62 B | 1999-11-04 |
| sz01.xws (download) | 89 B | 1999-12-12 |
| sz02.ari (download) | 26.2 KB | 1998-03-27 |
| sz02.dat (download) | 4.8 MB | 1998-03-26 |
| sz02.hea (download) | 57 B | 2008-04-05 |
| sz02.hea- (download) | 62 B | 1999-11-04 |
| sz02.xws (download) | 89 B | 1999-12-12 |
| sz03.ari (download) | 32.0 KB | 1998-03-27 |
| sz03.dat (download) | 5.2 MB | 1998-03-26 |
| sz03.hea (download) | 56 B | 2008-04-05 |
| sz03.hea- (download) | 61 B | 1999-11-04 |
| sz03.xws (download) | 89 B | 1999-12-12 |
| sz04.ari (download) | 12.2 KB | 1998-03-27 |
| sz04.dat (download) | 2.1 MB | 1998-03-26 |
| sz04.hea (download) | 56 B | 2008-04-05 |
| sz04.hea- (download) | 61 B | 1999-11-04 |
| sz04.xws (download) | 89 B | 1999-12-12 |
| sz05.ari (download) | 15.9 KB | 1998-07-16 |
| sz05.dat (download) | 2.1 MB | 1998-03-26 |
| sz05.hea (download) | 56 B | 2008-04-05 |
| sz05.hea- (download) | 61 B | 1999-11-04 |
| sz05.xws (download) | 89 B | 1999-12-12 |
| sz06.ari (download) | 24.9 KB | 1998-07-30 |
| sz06.dat (download) | 4.1 MB | 1998-03-26 |
| sz06.hea (download) | 56 B | 2008-04-05 |
| sz06.hea- (download) | 61 B | 1999-11-04 |
| sz06.xws (download) | 89 B | 1999-12-12 |
| sz07.ari (download) | 34.6 KB | 1998-05-22 |
| sz07.dat (download) | 2.7 MB | 1998-05-01 |
| sz07.hea (download) | 56 B | 2008-04-05 |
| sz07.hea- (download) | 61 B | 1999-11-04 |
| sz07.xws (download) | 89 B | 1999-12-12 |
| szdb.shtml (download) | 11.1 KB | 2012-01-05 |
| times.seize (download) | 230 B | 1999-11-04 |