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

[The authors of this paper] "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 currently available).

 Name                    Last modified      Size  Description
 Parent Directory                             -   
 ANNOTATORS              13-Oct-2000 22:36   58   list of annotators
 MD5SUMS                 13-Jul-2005 02:26  1.4K  
 RECORDS                 29-Mar-2000 10:13   35   list of record names
 SHA1SUMS                13-Jul-2005 02:26  1.7K  
 SHA256SUMS              18-Sep-2007 12:40  2.6K  
 sz01.ari                01-May-1998 12:49   16K  unaudited annotations
 sz01.dat                01-May-1998 12:49  2.1M  digitized signal(s)
 sz01.hea                05-Apr-2008 17:05   57   header file
 sz01.hea-               04-Nov-1999 15:29   62   header file
 sz01.xws                12-Dec-1999 17:33   89   WAVEScript
 sz02.ari                27-Mar-1998 12:45   26K  unaudited annotations
 sz02.dat                26-Mar-1998 12:35  4.8M  digitized signal(s)
 sz02.hea                05-Apr-2008 17:05   57   header file
 sz02.hea-               04-Nov-1999 15:29   62   header file
 sz02.xws                12-Dec-1999 17:33   89   WAVEScript
 sz03.ari                27-Mar-1998 12:40   32K  unaudited annotations
 sz03.dat                26-Mar-1998 12:37  5.2M  digitized signal(s)
 sz03.hea                05-Apr-2008 17:05   56   header file
 sz03.hea-               04-Nov-1999 15:29   61   header file
 sz03.xws                12-Dec-1999 17:33   89   WAVEScript
 sz04.ari                27-Mar-1998 12:50   12K  unaudited annotations
 sz04.dat                26-Mar-1998 12:40  2.1M  digitized signal(s)
 sz04.hea                05-Apr-2008 17:05   56   header file
 sz04.hea-               04-Nov-1999 15:29   61   header file
 sz04.xws                12-Dec-1999 17:33   89   WAVEScript
 sz05.ari                16-Jul-1998 11:29   16K  unaudited annotations
 sz05.dat                26-Mar-1998 15:00  2.1M  digitized signal(s)
 sz05.hea                05-Apr-2008 17:05   56   header file
 sz05.hea-               04-Nov-1999 15:29   61   header file
 sz05.xws                12-Dec-1999 17:33   89   WAVEScript
 sz06.ari                30-Jul-1998 12:52   25K  unaudited annotations
 sz06.dat                26-Mar-1998 15:02  4.1M  digitized signal(s)
 sz06.hea                05-Apr-2008 17:05   56   header file
 sz06.hea-               04-Nov-1999 15:29   61   header file
 sz06.xws                12-Dec-1999 17:33   89   WAVEScript
 sz07.ari                22-May-1998 14:52   35K  unaudited annotations
 sz07.dat                01-May-1998 12:50  2.7M  digitized signal(s)
 sz07.hea                05-Apr-2008 17:05   56   header file
 sz07.hea-               04-Nov-1999 15:29   61   header file
 sz07.xws                12-Dec-1999 17:33   89   WAVEScript
 szdb.shtml              09-Dec-1999 15:20   11K  
 times.seize             04-Nov-1999 15:29  230   

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