The New England journal of medicine
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Lack of effect of induction of hypothermia after acute brain injury.
Induction of hypothermia in patients with brain injury was shown to improve outcomes in small clinical studies, but the results were not definitive. To study this issue, we conducted a multicenter trial comparing the effects of hypothermia with those of normothermia in patients with acute brain injury. ⋯ Treatment with hypothermia, with the body temperature reaching 33 degrees C within eight hours after injury, is not effective in improving outcomes in patients with severe brain injury.
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Multicenter Study
Intussusception among infants given an oral rotavirus vaccine.
Intussusception is a form of intestinal obstruction in which a segment of the bowel prolapses into a more distal segment. Our investigation began on May 27, 1999, after nine cases of infants who had intussusception after receiving the tetravalent rhesus-human reassortant rotavirus vaccine (RRV-TV) were reported to the Vaccine Adverse Event Reporting System. ⋯ The strong association between vaccination with RRV-TV and intussusception among otherwise healthy infants supports the existence of a causal relation. Rotavirus vaccines with an improved safety profile are urgently needed.
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Randomized Controlled Trial Multicenter Study Clinical Trial
Effect of risedronate on the risk of hip fracture in elderly women. Hip Intervention Program Study Group.
Risedronate increases bone mineral density in elderly women, but whether it prevents hip fracture is not known. ⋯ Risedronate significantly reduces the risk of hip fracture among elderly women with confirmed osteoporosis but not among elderly women selected primarily on the basis of risk factors other than low bone mineral density.