First-Degree Atrioventricular Block: eMedicine Cardiology

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First-Degree Atrioventricular Block: eMedicine Cardiology

emedicine.medscape.com

Overview: The PR interval of the surface electrocardiogram (ECG) is measured from the onset of atrial depolarization (P wave) to the beginning of ventricular depolarization (QRS complex). In the adult population, normal PR interval ranges from 0.12-0.20 ...

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Tags: Heart, Arrhythmia, Heart Block, First-Degree Heart Block, Cardiology

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Most Recently Shared on April 14, 2010 at 4:40 pm By:

SusanS_Health Susan Scroggins

Did your ECG show a 1st degree atrioventricular block? Here's what you should know. http://bit.ly/d0i4mM

2 years ago...

Second-Degree Atrioventricular Block: eMedicine Cardiology

emedicine.medscape.com — “Overview: Second-degree atrioventricular (AV) block is characterized by disturbance, delay, or interruption of impulse conduction through the AV node. This excludes block due to premature atrial beats. The AV block can be permanent or transient, depending on ...View full resource at emedicine.medscape.com

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Most Recently Shared on June 4, 2010 at 9:52 pm By:

Atrioventricular Block: eMedicine Cardiology

emedicine.medscape.com — “Overview: Atrioventricular (AV) block occurs when the atrial depolarization fail to reach the ventricles or when atrial depolarization is conducted with a delay. Three degrees of AV block are recognized. First-degree AV block consists of prolongation of ...View full resource at emedicine.medscape.com

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Most Recently Shared on April 14, 2010 at 5:06 pm By:

J_Bohlen Julie Bohlen Health Executive and Active Health Library

An atrioventricular block can be divided into 3 degrees. Know the causes, symptoms, and treatment of each type. http://bit.ly/dxzxjV

2 years ago...

Third-Degree Atrioventricular Block: eMedicine Cardiology

emedicine.medscape.com — “Overview: In the heart, normal impulse initiation begins in the sinoatrial node. The excitation wave then travels through the atrium. During this time, surface ECG recordings show the P wave. Following intra-atrial conduction to the area of ...View full resource at emedicine.medscape.com

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Most Recently Shared on April 14, 2010 at 4:57 pm By:

SusanS_Health Susan Scroggins Active Health Library and Health Advocate

A 3rd degree atrioventricular block is the same as a complete heart block. Here is what patients need to know. http://bit.ly/ddUYwW

2 years ago...

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