Atrial fibrillation electrocardiogram: Difference between revisions
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Atrial fibrillation is diagnosed on an [[electrocardiogram]], an investigation performed routinely whenever irregular heart beat is suspected. Characteristic findings are the absence of P waves, with unorganized electrical activity in their place, and irregularity of R-R interval due to irregular conduction of impulses to the ventricles.<ref name="pmid16908781" | Atrial fibrillation is diagnosed on an [[electrocardiogram]], an investigation performed routinely whenever irregular heart beat is suspected. Characteristic findings are the absence of P waves, with unorganized electrical activity in their place, and irregularity of R-R interval due to irregular conduction of impulses to the ventricles.<ref name="pmid16908781"> | ||
EKG is helpful to identify; | EKG is helpful to identify; | ||
Revision as of 17:26, 28 June 2011
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Atrial Fibrillation Microchapters | |
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Special Groups | |
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Diagnosis | |
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Treatment | |
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Cardioversion | |
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Anticoagulation | |
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Surgery | |
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Case Studies | |
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Atrial fibrillation electrocardiogram On the Web | |
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Directions to Hospitals Treating Atrial fibrillation electrocardiogram | |
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Risk calculators and risk factors for Atrial fibrillation electrocardiogram | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Electrocardiogram
Atrial fibrillation is diagnosed on an electrocardiogram, an investigation performed routinely whenever irregular heart beat is suspected. Characteristic findings are the absence of P waves, with unorganized electrical activity in their place, and irregularity of R-R interval due to irregular conduction of impulses to the ventricles.:
- Interpreted by software: sensitivity = 83%, specificity = 99%
- Interpreted by a primary care physician: sensitivity = 80%, specificity = 92%
- Interpreted by a primary care physician with software: sensitivity = 92%, specificity = 91%
If paroxysmal AF is suspected but the electrocardiogram shows a regular rhythm, episodes may be documented with the use of Holter monitoring (continuous ECG recording for 24 hours). If the symptoms are very infrequent, longer periods of continuous monitoring may be required.[1]