[Suprascapular nerve entrapment].
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Biomedical subjects
Publications and source records attributed to E Steinberg.
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This paper reviews the major features of the new DRG prospective payment system which was introduced for the payment of hospitals under the Medicare program October 1, 1983 in the United States. It explores its general implications for the health sector, and then examines its specific implications for the development, diffusion, and utilization of medical technology. It concludes with some of the research questions that require investigation to provide an informed basis for modification to the payment system that will ensure that quality health care will be provided at an affordable cost.
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The bactericidal activity of penicillin-aminoglycoside combinations was studied in 16 strains of Group B streptococci. Minimal inhibitory concentrations (MIC) against kanamycin or gentamicin were greater than 50 microgram/ml, whereas ampicillin or penicillin inhibitory concentrations were uniformly less than 0.1 microgram/ml. Although all strains had bactericidal concentrations (MBC) less than 0.1 microgram penicillin/ml, penicillin at a concentration equal to each strains respective MBC reduced inoculum colony forming units (CFU) 2 logs in only 6 of 16 strains in bactericidal kinetic studies. However, the addition of gentamicin in concentrations of 5.0 or 10.0 microgram/ml to penicillin markedly enhanced bactericidal activity in all strains tested. The addition of lower concentrations of gentamicin (1.0 microgram/ml) had minimal advantage over penicillin alone. No distinct advantage was noted for combinations including either ampicillin or kanamycin. The theoretical advantage of penicillin-aminoglycoside combinations in experimental conditions, suggests that the use of antibiotic combinations in clinical infections due to Group B streptococci, may result in a more rapid eradication of these organisms.
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A 75-year-old male patient had an unexplained transient ischemic attack. Transesophageal echocardiography revealed a large, unruptured Sinus of Valsalva aneurysm which contained spontaneous echo contrast. This finding represents a potential source of embolism.
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