SUMMARY NOTES IN THE RECORD s20291  (Duration: 23:00:51.996)

Starting time, recording date:  16:31:00 18/11/1983

Lead 0: MLIII
Lead 1: V4

Age: 47  Sex: M
Comments:
  Clean record. Numerous episodes of ST elevation in lead 1,
  and mirrored ST depressions in lead 0.
  An excerpt of this recording is included in the European
  ST-T Database (record e0104).
Symptoms during Holter recording: No data
Diagnoses: 
  Prinzmetal's angina
  Coronary artery disease 
Treatment:
  Medications: 
    Nitrates
    Verapamil
  Balloon Angioplasty: No data
  Coronary Artery bypass Grafting: No data
History: 
  Smoker, coronary artery disease, previous myocardial infarction
  Hypertension: No
  Left ventricular hypertrophy: No
  Cardiomyopathy: No
  Valve disease: No
  Electrolyte abnormalities: No
  Hypercapnia, anemia, hypotension, hyperventilation: No
  Atrioventricular nodal conduction delay: No
  Intraventricular conduction block: No
  Previous Myocardial Infarction: Yes, inferior, non Q-wave
  Previous tests:
    ECG stress test: Yes
    Findings: Negative
    Thallium/Stress echo: No data
    Left ventricular function: 
      Globally normal
    Echocardiogram: No data
    Coronary Arteriography: 
      Left circumflex occlusion, left anterior descending coronary artery 75% stenosis, collateral circulation from left anterior descending coronary artery to left circumflex
    Baseline ECG: 
      Inferior Q waves
Holter Recording:
  Date: 18/11/1983
  Recorder: ICR


ST ANNOTATIONS

A. Criteria of 30 seconds and  75 microVolts (s20291.sta)

Lead 0:
Ischemic episodes:          32   Duration:    1:03:44   4.62% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                 3 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Lead 1:
Ischemic episodes:          37   Duration:    1:19:52   5.78% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                19 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Total:
Ischemic episodes:          69   Duration:    2:23:36   5.20%
Rate-related episodes:       0   Duration:       0:00   0.00%
Axis shifts:                22 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        2   Duration:       3:56   0.14%

Combined:
Ischemic episodes:          38   Duration:    1:23:34   6.05% 
Rate-related episodes:       0   Duration:       0:00   0.00%
Unreadable intervals:        1   Duration:       1:58   0.14%

Combined [ischemic or rate-related]:
ST segment episodes:        38   Duration:    1:23:34   6.05%
Unreadable intervals:        1   Duration:       1:58   0.14%

B. Criteria of 30 seconds and 100 microVolts (s20291.stb)

Lead 0:
Ischemic episodes:          26   Duration:      54:28   3.94% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                 3 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Lead 1:
Ischemic episodes:          31   Duration:    1:09:58   5.07% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                19 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Total:
Ischemic episodes:          57   Duration:    2:04:26   4.51%
Rate-related episodes:       0   Duration:       0:00   0.00%
Axis shifts:                22 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        2   Duration:       3:56   0.14%

Combined:
Ischemic episodes:          31   Duration:    1:11:50   5.20% 
Rate-related episodes:       0   Duration:       0:00   0.00%
Unreadable intervals:        1   Duration:       1:58   0.14%

Combined [ischemic or rate-related]:
ST segment episodes:        31   Duration:    1:11:50   5.20%
Unreadable intervals:        1   Duration:       1:58   0.14%

C. Criteria of 60 seconds and 100 microVolts (s20291.stc)

Lead 0:
Ischemic episodes:          20   Duration:      46:12   3.35% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                 3 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Lead 1:
Ischemic episodes:          24   Duration:      57:24   4.16% 
Rate-related episodes:       0   Duration:       0:00   0.00% 
Axis shifts:                19 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        1   Duration:       1:58   0.14% 

Total:
Ischemic episodes:          44   Duration:    1:43:36   3.75%
Rate-related episodes:       0   Duration:       0:00   0.00%
Axis shifts:                22 
Conduction-change shifts:    0 
Noisy events:                0 
Unreadable intervals:        2   Duration:       3:56   0.14%

Combined:
Ischemic episodes:          24   Duration:      59:04   4.28% 
Rate-related episodes:       0   Duration:       0:00   0.00%
Unreadable intervals:        1   Duration:       1:58   0.14%

Combined [ischemic or rate-related]:
ST segment episodes:        24   Duration:      59:04   4.28%
Unreadable intervals:        1   Duration:       1:58   0.14%


QRS ATRUTH ANNOTATIONS                   (s20291.atr)

Total number of beats                           76587

Normal beats                                    75971
Premature ventricular contractions                410
Supraventricular premature or ectopic beats       206