Paralysis or weakness of the heart muscle, resulting in loss of function or inability to contract properly.
From Greek 'kardia' (heart) + 'paraplaxis' (falling short, paralysis). This rare medical term emerged to describe severe cases of myocardial dysfunction.
The word 'paralysis' comes from Greek meaning 'to loosen'—when the heart becomes 'loosened' or unable to contract, it literally can't pump blood, which is why heart failure is life-threatening.
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