Category - Tube 6
despite the poor csf penetration, beta-lactams have the most research documenting successful treatment of community-acquired meningitis compared to other antibiotic classes. When the beta-lactam dose is increased, cns penetration increases. their csf penetration is considered to be particularly poor however, based on the auc csf auc s ratio, their penetration into the csf in the absence of meningeal inflammation is not lower than those of -lactam antibiotics and other hydrophilic antibiotics with a similar molecular mass. After penetration to csf an antibiotic is transported within the csf-space in distal direction. 11 27 (november) antibiotic pharmacodynamics in csf csf and blood, the penetration values were greater when ex- rst suggested the possibility of a saturable, probenecid-sensi. penetration distributes to bile and urine csf penetration poor. Dosed once daily with post-antibiotic effect and half-life of 8 hours. Ertapenem is a new carbapenem with a long half-life and activity against the majority of human bacterial pathogens, including penicillin-resistant pneumococci (11, 16, 17). On the other hand, little is known about the penetration and kinetics of ertapenem into the cerebrospinal fluid (csf) and its efficacy in pneumococcal meningitis. Molecular weight ( molecular weight penetration) protein binding ( protein binding penetration) susceptibility to active transport systems (which pump antibiotics out of the csf) bactericidal effect maximal when csf antibiotic concentration exceeds in vitro mic of the pathogen by 10 - 20 times. 5 studied the clinical pharmacology of vancomycin in pediatric patients the csf penetration in three in- fants with staphylococcal vp shunt infections ranged from 7 to 21. to our knowledge, this is the first population pk study of meropenem concentrations in serum and csf in neurocritical care patients with ventriculitis. Furthermore, it is also the largest study investigating the penetration of meropenem into csf. We found that meropenem poorly penetrated into csf, with a median penetration ratio of only 9. Central nervous system infections meningitis treatment bacterial meningitis is a medical emergency. Antibiotics should be started as soon as the possibility of bacterial meningitis becomes evident, ideally within 30 minutes.