Word: shunts
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...simpler than open-heart surgery is closure of a patent ductus arteriosus, the shunt that connects the aorta with the pulmonary artery in unborn infants. Normally, the duct closes automatically soon after birth. When it does not, the situation can be remedied either by tying the vessel shut or by cutting it and closing the ends. In major medical centers, mortality from these operations is near zero. But 777 hospitals offer to do them, and 232 hospitals have admitted a death rate of 3.6% from the first type of operation and 9.6% from the second...
Totality is bankrupt because it relieves the Faculty of any responsibility for Gen Ed and would allow students to evade requirements with inappropriate courses. Selectivity would be hard to effect for both political reasons--it would be ticklish business to shunt aside any department's introductory course--and philosophical ones--to exclude some courses and not others would involve establishing criteria for decision which no advocates of the distribution scheme are willing to set forth...
...engineers is Grand Chief Engineer Roy Davidson, 62, a coal miner's son who started out as a fireman on a steam locomotive at 16. Along with engineers, the union's membership includes hostlers, the men who take over the locomotives once they enter railyards and shunt them off for maintenance operations or refueling...
...operating room, Dr. DeBakey performed a surgical procedure that he pioneered and has improved over the past ten years. He installed a temporary plastic "shunt" so that blood supply to the brain would be maintained during the operation, removed large gobs of fatty material from the carotids, enlarged both the common and internal carotid arteries still further by suturing a Dacron patch in their walls. Then a week later he removed the atheromas that were causing the sharp pain in Key's legs...
...send only part of it to the lungs for re-oxygenation. The Taussig-Blalock operation, devised years before open-heart surgery with a heart-lung machine became possible, is a compromise: it consists of purposely creating a fifth defect-a connection from the aorta to the pulmonary artery-to shunt more blood to the lungs and thus overcome some of the effects of the original four...