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Cardiac arrhythmias (can be deadly) Congestive heart failure; Pulmonary emboli (blood clots in the lungs)
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Heart failure, also called congestive heart failure, is a condition in which the heart can no longer pump enough blood to the rest of the body.
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A pulmonary embolus is a blockage of an artery in the lungs by fat, air, a blood clot, or tumor cells.
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Pulmonary embolism is an obstruction of a blood vessel in the lungs, usually due to a blood clot, which blocks a coronary artery.
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An embolism is an obstruction in a blood vessel due to a blood clot or other foreign matter that gets stuck while traveling through the bloodstream. The plural of embolism is emboli.
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An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly.
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An arrhythmia is an abnormality in the heart's rhythm, or heartbeat pattern. The heartbeat can be too slow, too fast, have extra beats, skip a beat, or otherwise beat irregularly.
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