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ECG Archive

Below you will find the LearnTheHeart.com archive of ECGs. More will be added periodically. Currently over 200 available. If you would like to challange yourself to read the ECGs without the diagnosis given, check out the ECG quizzes section.

Normal ECG (Example)

Conduction abnormalities
Left Bundle Branch Block (Example 1)
Left Bundle Branch Block (Example 2)
Left Bundle Branch Block (Example 3)
Left Bundle Branch Block (Example 4)
Left Bundle Branch Block (Example 5)
Left Bundle Branch Block (Example 6)
Left Bundle Branch Block (Example 7)
Left Bundle Branch Block - Cabrera's Sign
Left Bundle Branch Block - Chapman's Sign

Incomplete Left Bundle Branch Block (Example 1)

Right Bundle Branch Block (Example 1)    
Right Bundle Branch Block (Example 2)
Right Bundle Branch Block (Example 3)    
Right Bundle Branch Block (Example 4)
Right Bundle Branch Block (Example 5)
Right Bundle Branch Block (Example 6)
Right Bundle Branch Block (Example 7)
Right Bundle Branch Block (Example 8)

Incomplete Right Bundle Branch Block (Example 1)
Incomplete Right Bundle Branch Block (Example 2)
Incomplete Right Bundle Branch Block (Example 3)

Left Anterior Fascicular Block (Example 1)
Left Anterior Fascicular Block (Example 2)
Left Anterior Fascicular Block (Example 3)
Left Posterior Fascicular Block (Example)

Bifascicular Block - RBBB + LAFB (Example 1)
Bifascicular Block - RBBB + LAFB (Example 2)
Bifascicular Block - RBBB + LAFB (Example 3)
Bifascicular Block - RBBB + LAFB (Example 4)

Bifascicular Block - RBBB + LPFB (Example 1)

Trifascicular Block (Example 1)   
Trifascicular Block (Example 2)

First Degree AV Block (Example 1)
First Degree AV Block (Example 2)
First Degree AV Block (Example 3)
First Degree AV Block (Example 4)

Second Degree AV Block Type I - Wenkebach (Example 1)
Second Degree AV Block Type I - Wenkebach (Example 2)

2:1 AV Block (Example)

Third Degree AV Block (Example)

Ischemic Heart Disease
Anterior Wall ST elevation MI (Example 1)
Anterior Wall ST elevation MI (Example 2)
Anterior Wall ST elevation MI (Example 3)
Anterior Wall ST elevation MI (Example 4)
Anterior Wall ST elevation MI (Example 5)
Anterior Wall ST elevation MI (Example 6)
Anterior Wall ST elevation MI with RBBB (Example)
Old Anterior Wall MI (Example)

Inferior Wall MI (Example 1)
Inferior Wall MI (Example 2)
Inferior Wall MI (Example 3)
Inferior Wall MI (Example 4)
Inferior Wall MI (Example 5)
Inferior Wall MI (Example 6)
Inferior Wall MI with RBBB (Example 5)
Old Inferior Wall MI (Example 1)
Old Inferior Wall MI (Example 2)
Normal inferior Q waves - NOT old inferior MI (Exmaple)

Posterior Wall MI - Standard EKG (Example)
Posterior Wall MI - Posterior EKG (Example)
Inferior-Posterior Wall MI (Example 1)
Inferior-Posterior Wall MI Right-sided ECG (Example 1)
Inferior-Posterior Wall MI (Example 2)
Inferior-Posterior Wall MI (Example 3)
Inferior-Posterior Wall MI (Example 4)

Anterior Ischemia - (Example)
Left main occlusion - Example)
STEMI with a Paced Rhythm (Example)

Atrial Arrhythmias
Sinus Tachycardia (Example 1)
Sinus Tachycardia (Example 2)
Sinus Tachycardia (Example 3)
Sinus Tachycardia (Example 4)

Sinus Bradycardia (Example 1)
Sinus Bradycardia (Example 2)
Sinus Bradycardia (Example 3)
Sinus Bradycardia (Example 4)

Sinus Arrhythmia (Example 1)
Sinus Arrhythmia (Example 2)

Premature Atrial Contractions (PACs) (Example 1)
Premature Atrial Contractions (PACs) (Example 2)
Atrial Bigeminy (Example 1)

Atrial Fibrillation with Rapid Ventricular Rate (Example 1)
Atrial Fibrillation with Rapid Ventricular Rate (Example 2)
Atrial Fibrillation with Rapid Ventricular Rate (Example 3)
Atrial Fibrillation with Rapid Ventricular Rate (Example 4)
Atrial Fibrillation with Rapid Ventricular Rate (Example 5)
Atrial Fibrillation with normal Ventricular Rate (Example 1)
Atrial Fibrillation with normal Ventricular Rate (Example 2)
Atrial Fibrillation with normal Ventricular Rate (Example 3)

Atrial Fibrillation with bradycardia (Example 1)
Atrial Fibrillation with bradycardia (Example 2)

Atrial Flutter with Variable Conduction (Example 1)
Atrial Flutter with Variable Conduction (Example 2)
Atrial Flutter with Variable Conduction (Example 3)

Atrial Flutter with 2:1 Conduction (Example 1)
Atrial Flutter with 2:1 Conduction (Example 2)   
Atrial Flutter with 3:1 Conduction (Example 1)
Atrial Flutter with 4:1 Conduction (Example 1)     
Atrial Flutter with 4:1 Conduction (Example 2)
Atrial Flutter with 4:1 Conduction (Example 3)
Atrial Flutter with 5:1 Conduction (Example 1)
Atrial Flutter with 5:1 Conduction (Example 2)

Multifocal Atrial Tachycardia (Example)
Ectopic Atrial Tachycardia (Example 1)    
Ectopic Atrial Tachycardia (Example 2)
Ectopic Atrial Bradycardia (Example)
AV Nodal Reentrant Tachycardia (Example)
AV Nodal Reentrant Tachycardia - Initiation - ECG
AV Rentrant Tachycardia (Example)

Ventricular Arrhythmias
Premature Ventricular Contractions (PVCs) (Example 1)
Premature Ventricular Contractions (PVCs) (Example 2)
Premature Ventricular Contractions (PVCs) (Example 3)
Ventricular Bigeminy (Example 1)
Ventricular Bigeminy (Example 2)
Ventricular Bigeminy (Example 3)
Ventricular Trigeminy (Example 1)
Ventricular Trigeminy (Example 2)
Ventricular Trigeminy (Example 3)

Accelerated Idioventricular Rhythm (Example 1)
Accelerated Idioventricular Rhythm (Example 2)
Accelerated Idioventricular Rhythm (Example 3)
Accelerated Idioventricular Rhythm (Example 4)

Monomorphic Non-Sustained Ventricular Tachycardia (Example)
Monomorphic Sustained Ventricular Tachycardia (Example 1)
Monomorphic Sustained Ventricular Tachycardia (Example 2)
Polymorphic Ventricular Tachycardia (Example 1)
Polymorphic Non-sustained Ventricular Tachycardia ECG (Example 2)

Ventricular Fibrillation (Example)
Asystole (Example)

Junctional Bradycardia (Example)
Accelerated Junctional Rhythm (Example 1)
Accelerated Junctional Rhythm (Example 2)
Junctional Tachycardia (Example 1)
Junctional Tachycardia (Example 2)

Chamber Enlargement and Axis
Left Atrial Enlargement (Example 1)
Left Atrial Enlargement (Example 2)
Left Atrial Enlargement with P-Mitrale (Example)

Right Atrial Enlargement (Example 1)     
Right Atrial Enlargement (Example 2)
Right Atrial Enlargement (Example 3)
Right Atrial Enlargement (Example 4)

Biatrial Enlargement (Example)

QRS Abnormalities
Left Ventricular Hypertrophy (Example 1)
Left Ventricular Hypertrophy (Example 2)
Left Ventricular Hypertrophy (Example 3)
Left Ventricular Hypertrophy (Example 4)
Left Ventricular Hypertrophy (Example 5)
Left Ventricular Hypertrophy (Example 6)
Left Ventricular Hypertrophy With Strain Pattern (Example 1)
Left Ventricular Hypertrophy With Strain Pattern (Example 2)
Left Ventricular Hypertrophy With Strain Pattern (Example 3)
Left Ventricular Hypertrophy With Strain Pattern (Example 4)

Right Ventricular Hypertrophy (Example 1)
Right Ventricular Hypertrophy with Strain (Example 1)

 Left Axis Deviation (Example)
Right Axis Deviation (Example)

Miscellaneous
Pericarditis (Example 1)
Pericarditis (Example 2)
Early Repolarization (Example 1)
Early Repolarization (Example 2)
Hypertrophic Obstructive Cardiomyopathy (HOCM)  ECG (Example 1)
Hypertrophic Obstructive Cardiomyopathy (HOCM)  ECG (Example 2)
LV Aneurysm (Example)
Pulmonary Embolism (Example 1)
Pulmonary Embolism (Example 2)
Pulmonary Embolism (Example 3)
Pulmonary Embolism (Example 4)
WPW (Example 1)
WPW (Example 2)
Low Voltage (Example 1)
Low Voltage (Example 2)
Low Voltage (Example 3)
Low Voltage (Example 4)
Pseudo-Low Voltage (Example)
Hyperkalemia (Example 1)
Hyperkalemia (Example 2)
Hyperkalemia (Example 3)
Hyperkalemia (Example 4)
Hyperkalemia before calcium bolus (Example 5)
Hyperkalemia just after calcium bolus (Example 5)
Hypokalemia (Example 1)
Hypocalcemia (Example)
Prolonged QT Interval (Example 1)
Prolonged QT Interval (Example 2)
Prolonged QT Interval (Example 3)
Prolonged QT Interval (Example 4)
Prolonged QT Interval (Example 5)
Wellen's Syndrome (Example 1)
Wellen's Syndrome (Example 2)
Wellen's Syndrome (Example 3)
Wellen's Syndrome (Example 4)
Wellen's Syndrome (Example 5)
Lown-Ganong-Levine (Example 1)
Lown-Ganong-Levine (Example 2)
Digoxin effect (Example 1)
Digoxin effect (Example 2)
Limb lead reversal (Example 1)
Limb lead reversal (Example 2)
Neurologic Insult (Example 1)
Neurologic Insult (Example 2)
Neurologic Insult (Example 3)
Brugada Syndrome (Example)
Arrhythmogenic right ventricular dysplasia (Example)
Dextrocardia (Example)

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