A 63-year-old with nonvalvular AF and CHA₂DS₂‑VASc 4 requires cardioversion after 36 hours of documented AF. Which anticoagulation strategy is appropriate? A Cardioversion without anticoagulation is acceptable if TTE is normal B Aspirin alone pre- and post-cardioversion C Anticoagulate for at least 3 weeks before and 4 weeks after cardioversion, or perform TEE-guided strategy with peri-procedural anticoagulation D No post-cardioversion anticoagulation is necessary if NSR restored E Use dual antiplatelet therapy instead of anticoagulation
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