The electrocardiogram: Difference between revisions
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*[[Trifascicular block]] | *[[Trifascicular block]] | ||
==EKG | ==EKG Findings in Diseases== | ||
===Cardiac Hypertrophy and Dilatation=== | ===Cardiac Hypertrophy and Dilatation=== | ||
*[[Electrocardiographic Findings in LVH| | *[[Electrocardiographic Findings in LVH|Left ventricular hypertrophy (LVH)]] | ||
*[[Electrocardiographic Findings in Right Ventricular Hypertrophy (RVH)| | *[[Electrocardiographic Findings in Right Ventricular Hypertrophy (RVH)|Right ventricular hypertrophy (RVH)]] | ||
*[[Electrocardiographic Findings in Biventricular Hypertrophy| | *[[Electrocardiographic Findings in Biventricular Hypertrophy|Biventricular hypertrophy]] | ||
*[[Electrocardiographic Findings in Left Atrial Enlargement| | *[[Electrocardiographic Findings in Left Atrial Enlargement|Left atrial enlargement]] | ||
*[[Electrocardiographic Findings in Right Atrial Enlargement| | *[[Electrocardiographic Findings in Right Atrial Enlargement|Right atrial enlargement]] | ||
*[[Electrocardiographic Findings in Biatrial Enlargement| | *[[Electrocardiographic Findings in Biatrial Enlargement|Biatrial enlargement]] | ||
===Acute Myocardial Infarction=== | ===Acute Myocardial Infarction=== | ||
| Line 121: | Line 121: | ||
===Other Heart Diseases=== | ===Other Heart Diseases=== | ||
*[[Pericarditis]] | *[[Pericarditis electrocardiogram|Pericarditis]] | ||
*[[Myocarditis]] | *[[Myocarditis electrocardiogram|Myocarditis]] | ||
*[[ | *[[Cardiac tamponade electrocardiogram|Cardiac tamponade]] | ||
*[[Sick sinus syndrome]] | *[[Sick sinus syndrome electrocardiogram| Sick sinus syndrome]] | ||
*[[Long QT syndrome]] | *[[Long QT Syndrome electrocradiogram|Long QT syndrome]] | ||
===EKG in Other Disease States=== | ===EKG in Other Disease States=== | ||
*[[EKG Abnormalities in CNS Disease| | *[[EKG Abnormalities in CNS Disease|CNS disease]] | ||
*[[The EKG of Cardiac Transplantation| | *[[The EKG of Cardiac Transplantation|Cardiac transplantation]] | ||
*[[Electrocardiography of traumatic heart disease]] | *[[Electrocardiography of traumatic heart disease|Trauma]] | ||
*[[Hypothermia]] | *[[Hypothermia]] | ||
*[[Cardiac effects of insect bites]] | *[[Cardiac effects of insect bites|Insect bites]] | ||
==EKG Abnormalities in Electrolyte Disturbances== | ==EKG Abnormalities in Electrolyte Disturbances== | ||
Revision as of 00:54, 30 October 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Assistant Editor(s)-in-Chief: Rim Halaby
Fundamentals of EKG
Basic Principles of Interpretation of an EKG
- Introduction to EKG
- How to read an EKG
- Normal sinus rhythm
- QRS axis and voltage
- Overall overview on electrocardiography
EKG Complexes
EKG Intervals
Abnormal Findings in EKG
- P wave alternans
- Retrograde P wave
- PR interval alternans
- QRS complex alternans
- Low QRS voltage
- Poor R wave progression
- T wave alternans
- Nonspecific ST-segment and T-wave changes
- T wave inversion
- QT prolongation
- Tombstone ST elevation
- U wave
- Osborn wave
- H wave
- K wave
- Delta wave
- NSSTW changes
Conduction System
Tachyarrhythmias
Atrial Arrhythmias
- Sinus tachycardia
- Premature atrial contractions (PAC)
- Ectopic atrial rhythm
- Paroxysmal atrial tachycardia (PAT)
- Paroxysmal atrial tachycardia (PAT) with block
- Multifocal atrial tachycardia (MAT)
- Atrial flutter
- Atrial fibrillation
- Wandering atrial pacemaker
Ventricular Arrhythmias
- Ventricular tachycardia
- Ventricular fibrillation
- Differential diagnosis of tachycardia with a wide QRS complex
- Accelerated idioventricular rhythm
- Ventricular parasystole
- Premature ventricular contractions
- Ventricular Tachycardia Including Torsades De Pointes and Polymorphic Ventricular Tachycardia
- Sudden cardiac death
Bradycardia and Conduction Abnormalities
- Sinus bradycardia
- First degree AV block
- Second degree AV block
- Complete or third-degree AV block
- Concealed conduction
- AV junctional rhythms
- Wolff-Parkinson-White syndrome
- Left bundle branch block
- Right bundle branch block
- Trifascicular block
EKG Findings in Diseases
Cardiac Hypertrophy and Dilatation
- Left ventricular hypertrophy (LVH)
- Right ventricular hypertrophy (RVH)
- Biventricular hypertrophy
- Left atrial enlargement
- Right atrial enlargement
- Biatrial enlargement
Acute Myocardial Infarction
Pre-excitation Syndromes
Cardiomyopathies
Congenital Heart Diseases
- Dextrocardia
- Atrial septal defect
- Ventricular septal defect
- Tetralogy of Fallot
- The heart in conjoined twins
- Congenital heart block
Inherited Diseases
Other Heart Diseases
EKG in Other Disease States
EKG Abnormalities in Electrolyte Disturbances
Drug Effects on the EKG
- Digitalis
- Quinidine
- Procainamide
- Disopyramide
- Lidocaine
- Tocainide and Mexiletine
- Phenytoin
- Encainide, Flecainide and Propafenone
- β-blockers
- Amiodarone
- Bretylium
- Ca Channel Blockers
- Adenosine
- Phenothiazines
- Tricyclic Antidepressants
- Lithium
Technical Issues and Potential Errors in Interpretation
Additional Information