Electrical alternans: Difference between revisions
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The presence of micro-voltage and [[electrical alternans]] suggests [[pericardial effusion]] and [[cardiac tamponade]]. | The presence of micro-voltage and [[electrical alternans]] suggests [[pericardial effusion]] and [[cardiac tamponade]]. | ||
[[Image:PulsusAlternans.jpg|thumb|500px| | ==Electrocardiographic Examples== | ||
[[Image:Alternans.jpg|thumb|left|500px|An ECG showing electrical alternans in a person with pericardial effusion. Note the change in the height of the QRS complexes.]] | |||
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[[Image:Electrical Alternans.jpg|thumb|left|500px|An ECG showing electrical alternans in a person with pericardial effusion. Note the change in the height of the QRS complexes.]] | |||
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[[Image:PulsusAlternans.jpg|thumb|500px|left|An example of electrical alternans. Note the alternation in the QRS axis between beats.]] | |||
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Revision as of 20:29, 17 July 2011
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Pericarditis Microchapters |
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Diagnosis |
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Treatment |
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Surgery |
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Case Studies |
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Electrical alternans On the Web |
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American Roentgen Ray Society Images of Electrical alternans |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Electrical alternans is an electrocardiographic phenomenon of alternation of QRS complex amplitude or axis between beats. It is seen in cardiac tamponade and is thought to be related to changes in the ventricular electrical axis due to fluid in the pericardium.
The presence of micro-voltage and electrical alternans suggests pericardial effusion and cardiac tamponade.
Electrocardiographic Examples
