60.The first successful open-heart surgery was performed in 1953.

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openheart
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surgery
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heart
4.
cardiovascular
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coronary
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artery
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vein
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blood
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transplant
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valve
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cardiac
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pericardium
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aorta
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bypass
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stent
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angioplasty
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pacemaker
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defibrillator
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ecg
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anesthesia
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recovery
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surgeon
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operatingroom
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medical
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health
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risk
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complication
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postoperative
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rehabilitation
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prognosis