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Unformatted text preview: +, Mg2+, Ca2+ Lone AF – Occurs in absence of heart disease
– Usually applies to patients < 60 years Hemodynamic Consequences
Hemodynamic Consequences Rapid, irregular heart rate – Hypotension, angina, syncope Loss of atrial kick → ↓ stroke volume (SV) and cardiac output (CO) ↓ ventricular diastolic filling time → ↓ SV and CO Tachycardiainduced cardiomyopathy Thromboembolic Consequences
Thromboembolic Consequences Loss of organized mechanical contraction in atrial → Pooling of blood in atria → Mural thrombi
– Thrombi can break off andtravel up carotid artery to brain → Thromboembolic stroke
– Does not cause DVT or PE AF is responsible for up to 20% of all strokes Stroke Risk Stratification
Stroke Risk Stratification CHADS2 index: – Each letter represents a significant risk factor for stroke in patients with AF: Congestive heart failure HTN Age (>75 yr) Diabetes Stroke or transient ischemic attack (TIA) Stroke Risk Stratification
Stroke Risk Stratification Patients are assigned a score for each of these risk factors
– 1 point Congestive heart failure,...
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This note was uploaded on 06/01/2013 for the course ECON 2301 taught by Professor Lipsh during the Fall '12 term at Broward College.
- Fall '12