Also known as A-fib, AF, AFib
abnormal heart rhythm characterized by rapid and irregular beating
Atrial fibrillation is a condition where the upper chambers of your heart beat rapidly and irregularly instead of in a steady, coordinated rhythm. It matters because this abnormal beating can reduce how efficiently your heart pumps blood and may lead to serious complications.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).