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This movie shows a computer model of ventricular fibrillation in the human heart.tentusscher Read this if you want to use this image in a presentation. Link to the file (click with right mouse button and choose save as... to download the file to your computer).

references

<biblio>

1. tentusscher pmid=17540975

</biblio>

=Normal tracing

• Normal ECG

Technical Problems

• Technical ProblemsLeads misplaced
• Artifacts

Sinus node rhythms and arrhythmias

• Sinus rhythm
• Sinus tachycardia (>100 beats per minute)
• Sinus bradycardia (<50 beats per minute)
• Sinus arrest or pause
• Sino-atrial exit block

!Other Supraventricular Rhythms |

| Atrial premature complexes

| Atrial premature complexes, nonconducted

| Ectopic atrial rhythm

| Atrial fibrillation

| Atrial flutter

| Junctional premature complexes

| Supraventricular tachycardia, paroxysmal

!Ventricular Arrhythmias |

| Ventricular premature complexes

| Ventricular escape complexes or rhythm

| Accelerated idioventricular rhythm

| Ventricular tachycardia

| Ventricular tachycardia, polymorphous (including torsade de pointes)

| Ventricular fibrillation

!Genetic Arrhythmias |

| Long QT syndrome*

| Brugada syndrome*

| Arrythmogenic Right Ventricular Cardiomyopathy*

| Catecholamin Induced Ventricular Tachycardia*

!Atrial Ventricular Conduction |

| First-degree AV block

| Mobitz Type 1 second-degree AV block (Wenckebach)

| Mobitz Type 2 second-degree AV block

| AV block or conduction ratio, 2:1

| AV block, varying conduction ratio

| AV block, advanced (high-grade)

| AV block, complete (third-degree)

| AV dissociation

!Intraventricular Conduction |

| Left bundle branch block (fixed or intermittent)

| Right bundle branch block (fixed or intermittent, complete or incomplete)

| Intraventricular conduction delay, nonspecific

| Aberrant conduction of supraventricular beats

| Left anterior fascicular block

| Left posterior fascicular block

| Ventricular pre-excitation (Wolff-Parkinson-White pattern)

!QRS axis and voltage |

| Right axis deviation (+90 to +180 degrees)

| Left axis deviation (-30 to -90 degrees)

| Indeterminate axis

| Electrical alternans

| Low voltage (less than 0.5 mV total QRS amplitude in each extremity lead and less than 1.0 mV in each Precordial lead)

!Chamber Hypertrophy and Enlargment |

| Left atrial enlargement, abnormality, or conduction defect

| Right atrial abnormality

| Left ventricular hypertrophy (QRS abnormality only)

| Left ventricular hypertrophy with secondary ST-T abnormality

| Right ventricular hypertrophy with or without secondary ST-T abnormality

!Repolarization (ST-T,U) Abnormalities |

| Early repolarization (normal variant)

| Juvenile T waves (normal variant)

| Nonspecific abnormality, ST segment and/or T wave

| ST and/or T wave suggests ischemia

| ST suggests injury

| ST suggests ventricular aneurysm

| Q-T interval prolonged

| Prominent U waves

| Cardiac Memory*

!Myocardial Infarction |

| Inferior MI (acute or recent)

| Inferior MI (old or age indeterminate)

| Posterior MI (acute or recent)

| Posterior MI (old or age indeterminate)

| Septal MI (acute or recent)

| Anterior MI (acute or recent)

| Anterior MI (old or age indeterminate)

| Lateral MI (acute or recent)

| Lateral MI (old or age indeterminate)

| Right ventricular infarction (acute)

| Lateral MI (acute or recent)

!Clinical Disorders |

| Chronic pulmonary disease pattern

| Acute pericarditis

| Suggests hypokalemia

| Suggests hyperkalemia

| Suggests hypocalcemia

| Suggests hypercalcemia

| Suggests CNS disease

!Pacemaker |

| Atrial-paced rhythm

| Ventricular-paced rhythm

| Atrial-sensed ventricular-paced rhythm

| AV dual-paced rhythm

| Failure of appropriate capture, atrial

| Failure of appropriate capture, ventricular

| Failure of appropriate inhibition, atrial

| Failure of appropriate inhibition, ventricular

| Failure of appropriate pacemaker firing

| Retrograde atrial activation

| Pacemaker mediated tachycardia

• not part of the ACC list