Cardiac tamponade electrocardiogram: Difference between revisions
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==Overview== | ==Overview== | ||
The electrocardiogram in cardiac tamponade usually demonstrates sinus tachycardia, and may sometimes show [[reduced QRS voltage]] and [[electrical alternans]]. | |||
==Electrocardiogram== | ==Electrocardiogram== | ||
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* [[ST segment]] <ref>Dolan, B., Holt, L. (2000). Accident & Emergency: Theory into practice. London: Bailliere Tindall ISBN 978-0702022395 </ref>. | * [[ST segment]] <ref>Dolan, B., Holt, L. (2000). Accident & Emergency: Theory into practice. London: Bailliere Tindall ISBN 978-0702022395 </ref>. | ||
* EKG findings of [[pericarditis]] and [[pericardial effusion]] may be seen if these conditions are accompanying tamponade. | * EKG findings of [[pericarditis]] and [[pericardial effusion]] may be seen if these conditions are accompanying tamponade. | ||
==Electrocardiographic Examples== | |||
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<gallery heights="250" widths="500"> | <gallery heights="250" widths="500"> | ||
Revision as of 14:16, 23 September 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Varun Kumar, M.B.B.S.
Overview
The electrocardiogram in cardiac tamponade usually demonstrates sinus tachycardia, and may sometimes show reduced QRS voltage and electrical alternans.
Electrocardiogram
EKG findings of cardiac tamponade are:
- Sinus tachycardia
- Electrical alternans (beat-to-beat alterations in the QRS complex due to the swinging of the heart in pericardial fluid)
- Low voltage QRS complexes (Low QRS voltage is defined as maximum QRS amplitude in precordial lead < 1 mV and < 0.5 mV in the limb leads due to insulating properties of fluid) [1].
- ST segment [2].
- EKG findings of pericarditis and pericardial effusion may be seen if these conditions are accompanying tamponade.
Electrocardiographic Examples
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Cardiac Tamponade with low voltage QRS complex and Electrical Alternans -
12 lead EKG shows Cardiac Tamponade with Electrical Alternans -
ST segment in ECG of a patient with cardiac tamponade
