EKG in right atrial enlargement: Difference between revisions
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* [[Tricuspid stenosis]] | * [[Tricuspid stenosis]] | ||
==The EKG in Right | ==The EKG in Right Atrial Enlargement== | ||
Right atrial enlargement is defined as either: | Right atrial enlargement is defined as either: | ||
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[[Image:right_atrial_enlargement.jpg|center|500px]] | [[Image:right_atrial_enlargement.jpg|center|500px]] | ||
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Shown below is an EKG demonstrating large P waves in leads to 2,3, and aVF which have a [[P-wave]] height greater than 2.5 mm consistent with right each one enlargement: | |||
[[Image:RAE.png|Right atrial enlargement|center|500px]] | [[Image:RAE.png|Right atrial enlargement|center|500px]] | ||
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Revision as of 14:28, 20 October 2012
| EKG in right atrial enlargement | ||
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| MeSH | [1] | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [3]
Overview
Right atrial enlargement can result from increased pressure in the pulmonary artery. A P wave >2.5 mm in leads II, III and aVF or a P wave >1.5 mm in lead V1 indicates right atrial enlargement. Despite the increase in the height of the P wave, the width of the P wave does not change. Sometimes these large P waves can be referred to as Himalayan P waves.
Differential Diagnosis of Underlying Causes of Right Atrial Enlargement
- Atrial aneurysm
- Atrial septal defect
- Cor pulmonale or right heart failure
- Ebstein's anomaly
- Tumor
- Pulmonic stenosis
- Tricuspid prolapse
- Tricuspid regurgitation
- Tricuspid stenosis
The EKG in Right Atrial Enlargement
Right atrial enlargement is defined as either:
Shown below is an illustration of right atrial enlargement:
Shown below is an EKG demonstrating large P waves in leads to 2,3, and aVF which have a P-wave height greater than 2.5 mm consistent with right each one enlargement:
