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Smartphone photoplethysmography before planned cardioversion reduced same-day cancellations in patients with atrial fibrillation or flutter by detecting spontaneous return to sinus rhythm early.
The DECAF randomized trial challenges the traditional view of caffeine as a trigger for atrial fibrillation, demonstrating that coffee consumption significantly reduces arrhythmia recurrence after cardioversion compared to total abstinence.
The DECAF randomized trial found that encouraging caffeinated coffee consumption (≈1 cup/day) after successful cardioversion reduced clinically detected AF/flutter recurrence over 6 months versus caffeine abstinence (47% vs 64%; HR 0.61). R
