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4 Cards in this Set
- Front
- Back
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What is Atrial fibrillation?
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Continuous 300-600bpm atria activation by meandering re-entry wavelets resulting in uncoordinated mechanical action.
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Incidence
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>65yrs = 5-10%
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Cardiac causes of AF
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Hypertension
CHF CAD/MI VHD Cardiomyopathy Surgery - (1/3 of CABG)(1/2 of Valvular) |
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Non-Cardiac causes of AF (7)
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Thyrotoxicosis
Phaeochromocytoma Pulmonary disease - pneumonia/COPD Hypokalaemia (Para)Sympathetic Tone increase Alcohol abuse Caffeine, smoking RDU |
