This database is described in
Please cite this publication when referencing this material, and also include the standard citation for PhysioNet:

This database includes 28 ECG recordings of varying lengths, most of which were recorded during exercise stress tests and which exhibit transient ST depression. The last five records (323 through 327) are excerpts of long-term ECG recordings and exhibit ST elevation.
Note that the annotation files contain only beat labels; they do not include ST change annotations, as in the European ST-T Database.
Name Last modified Size Description
Parent Directory -
300.atr 1992-07-31 03:34 5.0K reference annotations
300.dat 1992-07-31 08:19 1.5M digitized signal(s)
300.hea 2008-04-05 18:05 89 header file
300.hea- 1992-07-31 08:19 123 header file
300.xws 1999-12-12 17:32 88 WAVEScript
301.atr 1992-07-31 08:19 4.9K reference annotations
301.dat 1992-07-31 08:19 2.0M digitized signal(s)
301.hea 2008-04-05 18:05 94 header file
301.hea- 1992-07-31 08:19 128 header file
301.xws 1999-12-12 17:32 88 WAVEScript
302.atr 1992-07-31 08:19 4.1K reference annotations
302.dat 1992-07-31 08:19 1.5M digitized signal(s)
302.hea 2008-04-05 18:05 96 header file
302.hea- 1992-07-31 08:19 130 header file
302.xws 1999-12-12 17:32 88 WAVEScript
303.atr 1992-07-31 08:19 5.9K reference annotations
303.dat 1992-07-31 08:19 2.1M digitized signal(s)
303.hea 2008-04-05 18:05 93 header file
303.hea- 1992-07-31 08:19 127 header file
303.xws 1999-12-12 17:32 88 WAVEScript
304.atr 1992-07-31 08:19 3.6K reference annotations
304.dat 1992-07-31 08:19 1.9M digitized signal(s)
304.hea 2008-04-05 18:05 95 header file
304.hea- 1992-07-31 08:19 129 header file
304.xws 1999-12-12 17:32 88 WAVEScript
305.atr 1992-07-31 08:19 2.0K reference annotations
305.dat 1992-07-31 08:19 827K digitized signal(s)
305.hea 2008-04-05 18:05 95 header file
305.hea- 1992-07-31 08:19 129 header file
305.xws 1999-12-12 17:32 88 WAVEScript
306.atr 1992-07-31 08:19 13K reference annotations
306.dat 1992-07-31 08:19 4.2M digitized signal(s)
306.hea 2008-04-05 18:05 95 header file
306.hea- 1992-07-31 08:19 129 header file
306.xws 1999-12-12 17:32 88 WAVEScript
307.atr 1992-07-31 08:19 4.8K reference annotations
307.dat 1992-07-31 08:19 2.3M digitized signal(s)
307.hea 2008-04-05 18:05 94 header file
307.hea- 1992-07-31 08:19 128 header file
307.xws 1999-12-12 17:32 88 WAVEScript
308.atr 1992-07-31 08:19 4.5K reference annotations
308.dat 1992-07-31 08:19 1.8M digitized signal(s)
308.hea 2008-04-05 18:05 96 header file
308.hea- 1992-07-31 08:19 130 header file
308.xws 1999-12-12 17:32 88 WAVEScript
309.atr 1992-07-31 08:19 10K reference annotations
309.dat 1992-07-31 08:19 2.6M digitized signal(s)
309.hea 2008-04-05 18:05 93 header file
309.hea- 1992-07-31 08:19 127 header file
309.xws 1999-12-12 17:32 88 WAVEScript
310.atr 1992-07-31 08:19 4.7K reference annotations
310.dat 1992-07-31 08:19 1.2M digitized signal(s)
310.hea 2008-04-05 18:05 95 header file
310.hea- 1992-07-31 08:19 129 header file
310.xws 1999-12-12 17:32 88 WAVEScript
311.atr 1992-07-31 08:19 5.9K reference annotations
311.dat 1992-07-31 08:19 1.9M digitized signal(s)
311.hea 2008-04-05 18:05 94 header file
311.hea- 1992-07-31 08:19 128 header file
311.xws 1999-12-12 17:32 88 WAVEScript
312.atr 1992-07-31 08:19 4.6K reference annotations
312.dat 1992-07-31 08:19 1.7M digitized signal(s)
312.hea 2008-04-05 18:05 95 header file
312.hea- 1992-07-31 08:19 129 header file
312.xws 1999-12-12 17:32 88 WAVEScript
313.atr 1992-07-31 08:19 5.3K reference annotations
313.dat 1992-07-31 08:19 734K digitized signal(s)
313.hea 2008-04-05 18:05 56 header file
313.hea- 1992-07-31 08:19 73 header file
313.xws 1999-12-12 17:32 88 WAVEScript
314.atr 1992-07-31 08:19 4.1K reference annotations
314.dat 1992-07-31 08:19 826K digitized signal(s)
314.hea 2008-04-05 18:05 57 header file
314.hea- 1992-07-31 08:19 74 header file
314.xws 1999-12-12 17:32 88 WAVEScript
315.atr 1992-07-31 08:19 6.4K reference annotations
315.dat 1992-07-31 08:19 830K digitized signal(s)
315.hea 2017-06-02 10:12 55 header file
315.hea- 1992-07-31 08:19 72 header file
315.xws 1999-12-12 17:32 88 WAVEScript
316.atr 1992-07-31 08:19 6.5K reference annotations
316.dat 1992-07-31 08:19 813K digitized signal(s)
316.hea 2008-04-05 18:05 58 header file
316.hea- 1992-07-31 08:19 75 header file
316.xws 1999-12-12 17:32 88 WAVEScript
317.atr 1992-07-31 08:19 5.4K reference annotations
317.dat 1992-07-31 08:19 876K digitized signal(s)
317.hea 2008-04-05 18:05 56 header file
317.hea- 1992-07-31 08:19 73 header file
317.xws 1999-12-12 17:32 88 WAVEScript
318.atr 1992-07-31 08:19 6.9K reference annotations
318.dat 1992-07-31 08:19 1.7M digitized signal(s)
318.hea 2008-04-05 18:05 93 header file
318.hea- 1992-07-31 08:19 127 header file
318.xws 1999-12-12 17:32 88 WAVEScript
319.atr 1992-07-31 08:19 5.0K reference annotations
319.dat 1992-07-31 08:19 748K digitized signal(s)
319.hea 2008-04-05 18:05 55 header file
319.hea- 1992-07-31 08:19 72 header file
319.xws 1999-12-12 17:32 88 WAVEScript
320.atr 1992-07-31 08:19 6.1K reference annotations
320.dat 1992-07-31 08:19 1.0M digitized signal(s)
320.hea 2008-04-05 18:05 55 header file
320.hea- 1992-07-31 08:19 72 header file
320.xws 1999-12-12 17:32 88 WAVEScript
321.atr 1992-07-31 08:19 4.1K reference annotations
321.dat 1992-07-31 08:19 724K digitized signal(s)
321.hea 2008-04-05 18:05 56 header file
321.hea- 1992-07-31 08:19 73 header file
321.xws 1999-12-12 17:32 88 WAVEScript
322.atr 1992-07-31 08:19 2.9K reference annotations
322.dat 1992-07-31 08:19 419K digitized signal(s)
322.hea 2008-04-05 18:05 55 header file
322.hea- 1992-07-31 08:19 72 header file
322.xws 1999-12-12 17:32 88 WAVEScript
323.atr 1992-07-31 08:19 10K reference annotations
323.dat 1992-07-31 08:19 1.3M digitized signal(s)
323.hea 2008-04-05 18:05 57 header file
323.hea- 1992-07-31 08:19 74 header file
323.xws 1999-12-12 17:32 88 WAVEScript
324.atr 1992-07-31 08:19 3.4K reference annotations
324.dat 1992-07-31 08:19 1.9M digitized signal(s)
324.hea 2008-04-05 18:05 93 header file
324.hea- 1992-07-31 08:19 127 header file
324.xws 1999-12-12 17:32 88 WAVEScript
325.atr 1992-07-31 08:19 2.9K reference annotations
325.dat 1992-07-31 08:19 1.3M digitized signal(s)
325.hea 2008-04-05 18:05 93 header file
325.hea- 1992-07-31 08:19 127 header file
325.xws 1999-12-12 17:32 88 WAVEScript
326.atr 1992-07-31 08:19 4.1K reference annotations
326.dat 1992-07-31 08:19 2.3M digitized signal(s)
326.hea 2008-04-05 18:05 95 header file
326.hea- 1992-07-31 08:19 129 header file
326.xws 1999-12-12 17:32 88 WAVEScript
327.atr 1992-07-31 08:19 2.5K reference annotations
327.dat 1992-07-31 08:19 1.2M digitized signal(s)
327.hea 2008-04-05 18:05 93 header file
327.hea- 1992-07-31 08:19 127 header file
327.xws 1999-12-12 17:32 88 WAVEScript
ANNOTATORS 2000-10-13 22:42 31 list of annotators
DOI 2015-09-21 13:00 19
MD5SUMS 2005-07-13 02:24 4.7K
RECORDS 2000-03-29 10:12 112 list of record names
SHA1SUMS 2005-07-13 02:24 5.7K
SHA256SUMS 2007-09-18 12:40 8.5K
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