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• coronary bypass surgery (noun)
  1. open-heart surgery in which the rib cage is opened and a section of a blood vessel is grafted from the aorta to the coronary artery to bypass the blocked section of the coronary artery and improve the blood supply to the heart
• minimally invasive coronary bypass surgery (noun)
  1. heart surgery in which a coronary bypass is performed on the beating heart by the use of small instruments and cameras threaded through small incisions
• port-access coronary bypass surgery (noun)
  1. heart surgery in which a coronary bypass is performed by the use of small instruments and tiny cameras threaded through small incisions while the heart is stopped and blood is pumped through a heart-lung machine
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