EKG in biatrial enlargement
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| EKG in biatrial enlargement Classification and external resources | ||
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|---|---|---|
| eMedicine | med/ | |
| MeSH | [1] | |
| Cardiology Network |
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| Adult Congenital |
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Overview
In biatrial enlargement, the ECG has signs of both left and right atrial enlargement.
In lead V1 the following are observed:
- The P wave is biphasic with a large initial positive peak followed by a negative deflection.
- The P wave is more than 0.04 seconds in duration.
- The positive initial part of the P wave is > 1.5 mm and the negative terminal part of the P wave is > 1 mm.
Additional Reading
- Moss and Adams' Heart Disease in Infants, Children, and Adolescents Hugh D. Allen, Arthur J. Moss, David J. Driscoll, Forrest H. Adams, Timothy F. Feltes, Robert E. Shaddy, 2007 ISBN 0781786843
- Hurst's the Heart, Fuster V, 12th ed. 2008, ISBN 978-0-07-149928-6
- Willerson JT, Cardiovascular Medicine, 3rd ed., 2007, ISBN 978-1-84628-188-4
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
