SUMMARY NOTES IN THE RECORD s20171 (Duration: 26:00:00.000) Starting time, recording date: 09:10:00 28/05/1988 Lead 0: V4 Lead 1: MLIII Age: 44 Sex: M Comments: Lead 0: From 9:34:42 to 9:43:32 This episode of ischemia has produced a biphasic ST pattern, beginning with ST-elevation and T-wave peaking, and ending with ST depression during the recovery phase. This general pattern is seen in other ischemic episodes in this subject as well (as at 12:22:28). From 14:21:04 to 14:25:36 This episode begins with ST-depression, with subsequent elevation and terminal depression. Lead 1: From 4:54:22 to 4:55:44 The minor ST-T changes seen include ST flattening and T-wave inversion with respect to the local reference region. These changes correspond to clear-cut ischemic changes in lead 0 at the same time. This phenomena pertains to most of the episodes marked in this lead. From 8:08:00 to 8:09:16 The minor ST-T changes seen include ST flattening and T-wave inversion with respect to the local reference region. These changes correspond to clear-cut ischemic changes in lead 0 at the same time. This phenomena pertains to most of the episodes marked in this lead. From 9:01:30 to 9:02:20 The minor ST-T changes seen include ST flattening and T-wave inversion with respect to the local reference region. These changes correspond to clear-cut ischemic changes in lead 0 at the same time. This phenomena pertains to most of the episodes marked in this lead. An excerpt of this recording is included in the European ST-T Database (record e0127). Symptoms during Holter recording: No data Diagnoses: Prinzmetal's angina Coronary artery disease Hypertension Treatment: Medications: No Balloon Angioplasty: No data Coronary Artery bypass Grafting: No data History: Smoker Hypertension: Yes Left ventricular hypertrophy: Septum 15 mm 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: No Previous tests: ECG stress test: No data Thallium/Stress echo: No data Left ventricular function: Normal Echocardiogram: No data Coronary Arteriography: Left anterior descending coronary artery 90% stenosis Baseline ECG: Normal Holter Recording: Date: 28/05/1988 Recorder: ICR ST ANNOTATIONS A. Criteria of 30 seconds and 75 microVolts (s20171.sta) Lead 0: Ischemic episodes: 24 Duration: 57:38 3.69% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 13 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Lead 1: Ischemic episodes: 8 Duration: 11:26 0.73% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 8 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Total: Ischemic episodes: 32 Duration: 1:09:04 2.21% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 21 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Combined: Ischemic episodes: 25 Duration: 59:30 3.81% Rate-related episodes: 0 Duration: 0:00 0.00% Unreadable intervals: 0 Duration: 0:00 0.00% Combined [ischemic or rate-related]: ST segment episodes: 25 Duration: 59:30 3.81% Unreadable intervals: 0 Duration: 0:00 0.00% B. Criteria of 30 seconds and 100 microVolts (s20171.stb) Lead 0: Ischemic episodes: 18 Duration: 39:38 2.54% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 13 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Lead 1: Ischemic episodes: 2 Duration: 4:04 0.26% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 8 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Total: Ischemic episodes: 20 Duration: 43:42 1.40% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 21 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Combined: Ischemic episodes: 18 Duration: 39:56 2.56% Rate-related episodes: 0 Duration: 0:00 0.00% Unreadable intervals: 0 Duration: 0:00 0.00% Combined [ischemic or rate-related]: ST segment episodes: 18 Duration: 39:56 2.56% Unreadable intervals: 0 Duration: 0:00 0.00% C. Criteria of 60 seconds and 100 microVolts (s20171.stc) Lead 0: Ischemic episodes: 11 Duration: 31:54 2.04% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 13 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Lead 1: Ischemic episodes: 0 Duration: 0:00 0.00% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 8 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Total: Ischemic episodes: 11 Duration: 31:54 1.02% Rate-related episodes: 0 Duration: 0:00 0.00% Axis shifts: 21 Conduction-change shifts: 0 Noisy events: 0 Unreadable intervals: 0 Duration: 0:00 0.00% Combined: Ischemic episodes: 11 Duration: 31:54 2.04% Rate-related episodes: 0 Duration: 0:00 0.00% Unreadable intervals: 0 Duration: 0:00 0.00% Combined [ischemic or rate-related]: ST segment episodes: 11 Duration: 31:54 2.04% Unreadable intervals: 0 Duration: 0:00 0.00% QRS ATRUTH ANNOTATIONS (s20171.atr) Total number of beats 126526 Normal beats 126515 Premature ventricular contractions 9 Supraventricular premature or ectopic beats 2