Word: ductus
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Ironically, two more of nature's mistakes kept Betty going. There were two small holes in the septum (wall) between the two upper chambers of her heart, allowing partly oxygenated blood to pass through. And the ductus arteriosus, which supplies a normal and necessary connection between aorta and pulmonary artery during a baby's life in the womb, did not close as it should have after Betty's birth. This also helped to make partly oxygenated blood available to her faltering circulation...
...Gerbode, "it was just a matter of not making any mistakes." It was also a 91-hour marathon for him and his three assistant surgeons. With the heart exposed (see diagram), Dr. Gerbode stripped away part of its outer sac (pericardium) for later use. Next he sewed up the ductus arteriosus where it joined the pulmonary artery. Then, with his patient connected to the heart-lung pump, he set its heat-exchanger to chill Mrs. Vanella's blood to 68° F., to reduce the brain's oxygen demands...
...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...
...Harken's work, most of the pioneering in heart surgery has been done away from the Brigham, though some of it only a block away at Children's Hospital. There in 1938, Dr. Robert E. Gross led the way toward heart surgery with his pioneering patent-ductus operation (to shut off a vessel that is necessary during fetal life, but should close automatically soon after birth). He followed this with a more daring operation in 1946 to remove a narrowed section of the aorta-a crippling and potentially fatal defect with which some babies are born. Baltimore...
Time-Defying Leap. Next, the fragments are sorted according to script and (if possible) scribe. The mutations of Hebrew and Aramaic letters are classifiable by date-this science of paleography is, in fact, the most exact way of dating the scrolls. Each scribe, too, had his own characteristic handwriting ("ductus"), and a shred of personality makes a time-defying leap across the centuries when a scroll scholar recognizes the mannerisms of an Essene scribe who worked at a long table not unlike his own, 20 miles away and 2,000 years ago. In addition to matching up the script...