Post-Ictal Heart Rate Oscillations in Partial Epilepsy: Data and Analysis

This database is described in

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. {\em Neurology} 53(7):1590-1592 (1999 October 22).

Please cite this publication when referencing this material, and also include the standard citation for PhysioNet:

Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation 101(23):e215-e220 [Circulation Electronic Pages; http://circ.ahajournals.org/cgi/content/full/101/23/e215]; 2000 (June 13).

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                             -   
 ANNOTATORS              14-Oct-2000 04:36   58   list of annotators
 MD5SUMS                 13-Jul-2005 09:26  1.4K  
 RECORDS                 29-Mar-2000 17:13   35   list of record names
 SHA1SUMS                13-Jul-2005 09:26  1.7K  
 SHA256SUMS              18-Sep-2007 18:40  2.6K  
 sz01.ari                01-May-1998 19:49   16K  unaudited annotations
 sz01.dat                01-May-1998 19:49  2.1M  digitized signal(s)
 sz01.hea                06-Apr-2008 01:05   57   header file
 sz01.hea-               04-Nov-1999 22:29   62   header file
 sz01.xws                13-Dec-1999 00:33   89   WAVEScript
 sz02.ari                27-Mar-1998 20:45   26K  unaudited annotations
 sz02.dat                26-Mar-1998 20:35  4.8M  digitized signal(s)
 sz02.hea                06-Apr-2008 01:05   57   header file
 sz02.hea-               04-Nov-1999 22:29   62   header file
 sz02.xws                13-Dec-1999 00:33   89   WAVEScript
 sz03.ari                27-Mar-1998 20:40   32K  unaudited annotations
 sz03.dat                26-Mar-1998 20:37  5.2M  digitized signal(s)
 sz03.hea                06-Apr-2008 01:05   56   header file
 sz03.hea-               04-Nov-1999 22:29   61   header file
 sz03.xws                13-Dec-1999 00:33   89   WAVEScript
 sz04.ari                27-Mar-1998 20:50   12K  unaudited annotations
 sz04.dat                26-Mar-1998 20:40  2.1M  digitized signal(s)
 sz04.hea                06-Apr-2008 01:05   56   header file
 sz04.hea-               04-Nov-1999 22:29   61   header file
 sz04.xws                13-Dec-1999 00:33   89   WAVEScript
 sz05.ari                16-Jul-1998 18:29   16K  unaudited annotations
 sz05.dat                26-Mar-1998 23:00  2.1M  digitized signal(s)
 sz05.hea                06-Apr-2008 01:05   56   header file
 sz05.hea-               04-Nov-1999 22:29   61   header file
 sz05.xws                13-Dec-1999 00:33   89   WAVEScript
 sz06.ari                30-Jul-1998 19:52   25K  unaudited annotations
 sz06.dat                26-Mar-1998 23:02  4.1M  digitized signal(s)
 sz06.hea                06-Apr-2008 01:05   56   header file
 sz06.hea-               04-Nov-1999 22:29   61   header file
 sz06.xws                13-Dec-1999 00:33   89   WAVEScript
 sz07.ari                22-May-1998 21:52   35K  unaudited annotations
 sz07.dat                01-May-1998 19:50  2.7M  digitized signal(s)
 sz07.hea                06-Apr-2008 01:05   56   header file
 sz07.hea-               04-Nov-1999 22:29   61   header file
 sz07.xws                13-Dec-1999 00:33   89   WAVEScript
 szdb.shtml              06-Jan-2012 04:02   11K  
 times.seize             04-Nov-1999 22:29  230