St Jude Medical Pacemaker

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A pacemaker is an artificial device to electrically assist in pacing the heart so that the heart may pump blood more effectively.

The heart's natural pacemaker is an electrical timing device that controls the rate of the heart's muscular contractions, enabling the heart to pump blood under the wide range of demands encountered in daily life.

Everyone's heart speeds up or slows down under different conditions and may on occasion appear to flutter or miss a beat. These palpitations are usually...

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