Word: womb
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Dates: during 2000-2009
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...SOON Premature births in the U.S. are up a troubling 27% since 1980. Doctors struggle to find the causes and to extend time in the womb...
...ratio represents a 27% increase since 1980. Advances in neonatal care have saved many children who might otherwise have died. And lots of babies who leave the intensive-care unit grow up to be healthy, vibrant adults. But no incubator--no matter how high tech--will ever replace the womb. The goal, as doctors and nurses who treat ultrafragile preemies will tell you, should be to keep infants from ever needing extraordinary measures in the first place...
Specialists in the U.S. often transfer several embryos into the womb during in vitro fertilization (IVF) in hopes of boosting the chance that one of them will "take" and therefore boost their clinic's success rate. Studies suggest, however, that the odds of a successful pregnancy may be the same whether you implant one, two or three embryos. Many European countries have decided to restrict their IVF clinics to one or two embryos per pregnancy. Dr. Lockwood and other physicians think such a limit might make sense in the U.S. as well...
...SCIENCE VOLCANOES: Mount St. Helens is threatening to blow its top again MEDICINE: Scientists look for ways to extend time in the womb...
...issued a firm warning earlier this year in its consumer magazine. Although there are no reported cases of ultrasound causing harm to a fetus, the FDA says we simply don't know enough about the long-term effects of repeatedly sending high doses of energy across a mother's womb. After all, these ultrasonic waves are the same as those used at higher exposure to break up kidney stones. Laboratory studies have shown that even at low levels, ultrasounds can produce physical effects in tissue, including jarring vibrations and temperature increases. John Hayes, editor in chief of Diagnostic Imaging Magazine...