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[A1] Sinus bradycardia (1)

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[A21] Sinus bradycardia (heart rate 40-50 bpm) (2)

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[A22] Sinus bradycardia (heart rate 30-39 bpm) (3)

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[A23] Sinus bradycardia (heart rate <30 bpm) (4)

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[A3] Sinus pause (5)

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[A2] Sinus tachycardia (heart rate >100 bpm) (6)

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[A4] Ectopic supraventricular beats (7)

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[A20] Ectopic supraventricular rhythm (8)

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[A17] Wandering atrial pacemaker (9)

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[A26] Multifocal atrial tachycardia (Wandering atrial pacemaker with heart rate >100 bpm) (10)

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[A6] Supraventricular tachycardia (heart rate >100 bpm) (11)

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[A7] Atrial flutter (12)

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[A8] Atrial fibrillation (13)

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[A5] Junctional rhythm (heart rate <=100 bpm) (14)

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[A25] Junctional rhythm (15)

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[A24] Junctional tachycardia (heart rate > 100 bpm) (16)

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[A9] Ectopic ventricular beats (17)

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[A12] Ventricular couplets (18)

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[A13] Bigeminy (19)

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[A28] Trigeminy (20)

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[A14] Electrical alternans (21)

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[A29] R on T phenomenon (22)

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[A18] Ventricular fibrillation (23)

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[A19] Idioventricular rhythm (heart rate < 100 bpm) (24)

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[A10] Sustained ventricular tachycardia (25)

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[A11] Non-sustained ventricular tachycardia (26)

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[A32] Wide QRS Tachycardia (diagnosis unknown) (27)

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[A27] Ventricular tachycardia (28)

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[A30] Monomorphic ventricular tachycardia (29)

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[A15] Torsades de Pointes (Polymosphic ventricular tachycardia with prolonged QT) (30)

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[A31] Polymorphic (sustained and non-sustained) ventricular tachycardia (31)

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[A16] Artificial pacemaker (32)

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[A99] Other abnormal rhythm (33)

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[B1] Left atrial abnormality (P mitrale) (1)

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[B2] Rightatrial abnormality (P pulmonale) (2)

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[B3] Right ventricular hypertrophy (3)

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[B5] Intraatrial conduction delay (4)

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[B14] Increased voltage consistent with left ventricular hypertrophy (5)

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[B99] Other morphology (6)

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[C1] First degree AV block (PR interval > 200 msec) (1)

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[C20] Short PR interval (2)

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[C2] Second degree AV block (Mobitz type 1) (3)

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[C3] Second degree AV block (Mobitz type 2) (4)

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[C16] 2:1 AV block (5)

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[C4] Third degree AV block (6)

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[C5] Left axis deviation (QRS axis more negative than -30°) (7)

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[C6] Right axis deviation (QRS axis more positive than +110°) (8)

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[C7] Incomplete right bundle branch block (9)

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[C13] Incomplete left bundle branch block (10)

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[C8] Right bundle branch block (11)

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[C14] Left anterior hemiblock (synonymous to left anterior fascicular block) (12)

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[C15] Left posterior hemiblock (synonymous to left posterior fascicular block) (13)

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[C9] Left bundle branch block (14)

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[C17] Bifascicular block (15)

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[C10] Non-specific intraventricular conduction delay (QRS >=120msec) (16)

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[C11] Accessory pathway (Wolff-Parkinson White, Lown-Ganong-Levine) (17)

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[C19] Prolonged QT interval (18)

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[C12] QT/QTc prolongation >=500 msec (19)

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[C18] AV dissociation (20)

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[C99] Other conduction  (21)

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[D1] Myocardial infraction, old (1)

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[D2] Myocardial infraction, anterior (2)

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[D3] Myocardial infraction, lateral (3)

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[D4] Myocardial infraction, posterior (4)

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[D5] Myocardial infraction, inferior (5)

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[D6] Myocardial infraction, septal (6)

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[D20] Myocardial infraction, Non-Q wave (7)

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[D98] Other myocardial infraction  (8)

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[D7] Non-specific ST-T changes (1)

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[D19] J point elevation (2)

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[D8] ST elevation (3)

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[D21] ST elevation-pericarditis (4)

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[D9] ST depression (5)

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[D10] U waves abnormal (6)

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[D11] T wave inversion (7)

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[D12] T wave peaked (8)

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[D15] T waves flat (9)

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[D16] T waves biphasic (10)

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[D18] Notched T-waves (11)

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[D13] Low QRS voltage (12)

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[D17] T-wave flattening/inversion (13)

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[D99] Other depolarisation/repolarisation  (14)

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[E99] Other abnormalities (1)