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summary/abstract
Most people think heart disease shows up the same way every time—chest pain, shortness of breath, maybe a trip to the emergency room.
But some heart conditions are far quieter.
They creep in slowly. The symptoms are subtle at first—fatigue, swelling in the legs, and feeling short of breath when walking across the room. It can look like normal aging or common heart failure. But in some cases, the real cause is something many people have never heard of: cardiac amyloidosis, also known as ATTR-CM.