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Träfflista för sökning "WFRF:(Isaksson Lennart) srt2:(1988-1989)"

Sökning: WFRF:(Isaksson Lennart) > (1988-1989)

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1.
  • Isaksson, Barbro, et al. (författare)
  • Postantibiotic effect of aminoglycosides on gram-negative bacteria evaluated by a new method.
  • 1988
  • Ingår i: Journal of Antimicrobial Chemotherapy. - : Oxford University Press. - 0305-7453 .- 1460-2091. ; 22:1, s. 23-33
  • Tidskriftsartikel (refereegranskat)abstract
    • The in-vitro postantibiotic effect (PAE) of amikacin, gentamicin, netilmicin and tobramycin was investigated by a bioluminescent assay of bacterial ATP. Two strains each of Escherichia coli and Pseudomonas aeruginosa were exposed for 1 h to different concentrations of the aminoglycosides. The aminoglycoside was removed by a 10(-3) dilution, and regrowth of bacteria was followed at hourly intervals by monitoring bacterial ATP. This method simplified the PAE studies and made such studies possible at high aminoglycoside concentrations. The length of the PAE was dose-dependent for all the aminoglycosides studied. The PAEs ranged between three and seven hours for all four strains at the aminoglycoside concentrations normally reached in serum during standard dosing. The long PAE of aminoglycosides, especially after exposure to high drug concentrations, constitutes an argument in favour of administering aminoglycosides in higher-than-usual doses with longer intervals between doses. This proposal is also supported by recent pharmacokinetic, bacteriological and toxicity data.
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2.
  • Maller, Rolf, et al. (författare)
  • A study of amikacin given once versus twice daily in serious infections.
  • 1988
  • Ingår i: Scandinavian Journal of Infectious Diseases. Supplementum. - : Oxford University Press (OUP). - 0300-8878 .- 1651-2502. ; 22:1, s. 75-79
  • Tidskriftsartikel (refereegranskat)abstract
    • Forty-five mostly elderly patients with serious infections were treated in a prospective, comparative and randomized pharmacokinetic study with amikacin 11.0 or 15.0 mg/kg administered in a single daily dose as an intravenous, short-term infusion or with amikacin 7.5 mg/kg administered twice daily in the same way. The results indicate that administration of amikacin 15 mg/kg in a single daily dose should be a practical and safe principle of administration. However elderly patients often have reduced creatinine clearance and should preferably be given a lower dose of 11 mg/kg bw. The risk of nephrotoxicity did not increase, but conclusions on ototoxicity and clinical efficacy cannot be drawn from this limited study. This should be considered as an initial part of a future multicentre trial.
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3.
  • Odenholt, I, et al. (författare)
  • Postantibiotic and bactericidal effect of imipenem against Pseudomonas aeruginosa.
  • 1989
  • Ingår i: European Journal of Clinical Microbiology and Infectious Diseases. - 0934-9723 .- 1435-4373. ; 8:2, s. 136-141
  • Tidskriftsartikel (refereegranskat)abstract
    • The postantibiotic effect of imipenem on Pseudomonas aeruginosa was studied at different inocula using one ATCC strain and four clinical isolates. The postantibiotic effect was measured using two different methods: viable counts and bioluminescence assay of intracellular bacterial ATP. The postantibiotic effect could be demonstrated with both methods (viable counts 1-2 h, ATP assay 3-5 h) for all strains at an inoculum of 10(6) CFU/ml. When the inoculum was raised to 10(8) CFU/ml, no postantibiotic effect could be observed with either method using routine growth conditions. This disappearance of the postantibiotic effect coincided with a loss of bactericidal effect of imipenem when high inocula were used. Improved oxygenation of the cultures restored the bactericidal and postantibiotic effects of imipenem at high inocula.
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  • Resultat 1-3 av 3
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tidskriftsartikel (3)
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refereegranskat (3)
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Nilsson, Lennart (3)
Isaksson, Barbro (3)
Maller, Rolf (2)
Sörén, Lars (2)
Cars, O. (1)
Nilsson, Maud (1)
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Odenholt, I (1)
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