This database is described in
Please cite this publication when referencing this material, and also include the standard citation for PhysioNet:
The authors of the first reference above report “post-ictal heart rate oscillations in a heterogeneous group of patients with partial epilepsy. 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).
Name Last modified Size Description
Parent Directory - times.seize 04-Nov-1999 21:29 230 szdb.shtml 06-Jan-2012 03:02 11K sz07.xws 12-Dec-1999 23:33 89 WAVEScript sz07.hea- 04-Nov-1999 21:29 61 header file sz07.hea 06-Apr-2008 00:05 56 header file sz07.dat 01-May-1998 18:50 2.7M digitized signal(s) sz07.ari 22-May-1998 20:52 35K unaudited annotations sz06.xws 12-Dec-1999 23:33 89 WAVEScript sz06.hea- 04-Nov-1999 21:29 61 header file sz06.hea 06-Apr-2008 00:05 56 header file sz06.dat 26-Mar-1998 21:02 4.1M digitized signal(s) sz06.ari 30-Jul-1998 18:52 25K unaudited annotations sz05.xws 12-Dec-1999 23:33 89 WAVEScript sz05.hea- 04-Nov-1999 21:29 61 header file sz05.hea 06-Apr-2008 00:05 56 header file sz05.dat 26-Mar-1998 21:00 2.1M digitized signal(s) sz05.ari 16-Jul-1998 17:29 16K unaudited annotations sz04.xws 12-Dec-1999 23:33 89 WAVEScript sz04.hea- 04-Nov-1999 21:29 61 header file sz04.hea 06-Apr-2008 00:05 56 header file sz04.dat 26-Mar-1998 18:40 2.1M digitized signal(s) sz04.ari 27-Mar-1998 18:50 12K unaudited annotations sz03.xws 12-Dec-1999 23:33 89 WAVEScript sz03.hea- 04-Nov-1999 21:29 61 header file sz03.hea 06-Apr-2008 00:05 56 header file sz03.dat 26-Mar-1998 18:37 5.2M digitized signal(s) sz03.ari 27-Mar-1998 18:40 32K unaudited annotations sz02.xws 12-Dec-1999 23:33 89 WAVEScript sz02.hea- 04-Nov-1999 21:29 62 header file sz02.hea 06-Apr-2008 00:05 57 header file sz02.dat 26-Mar-1998 18:35 4.8M digitized signal(s) sz02.ari 27-Mar-1998 18:45 26K unaudited annotations sz01.xws 12-Dec-1999 23:33 89 WAVEScript sz01.hea- 04-Nov-1999 21:29 62 header file sz01.hea 06-Apr-2008 00:05 57 header file sz01.dat 01-May-1998 18:49 2.1M digitized signal(s) sz01.ari 01-May-1998 18:49 16K unaudited annotations local.css 28-Oct-2015 23:32 3.1K SHA256SUMS 18-Sep-2007 18:40 2.6K SHA1SUMS 13-Jul-2005 08:26 1.7K RECORDS 29-Mar-2000 17:13 35 list of record names MD5SUMS 13-Jul-2005 08:26 1.4K DOI 21-Sep-2015 19:00 19 ANNOTATORS 14-Oct-2000 04:36 58 list of annotators
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