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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1999-9-21
pubmed:abstractText
This study was conducted to evaluate the activity of levofloxacin in comparison with a range of antibacterial agents against recent isolates obtained consecutively from patients with community-acquired pneumonia (CAP) or acute exacerbation of chronic bronchitis (AECB) during the period 1995 to 1996. Susceptibility testing was carried out by either microdilution or the Etest, and interpreted according to NCCLS breakpoints. The activity of levofloxacin was compared with that of amoxycillin, amoxycillin-clavulanate, cefuroxime, cefixime, erythromycin, roxithromycin, clarithromycin, azithromycin, ofloxacin and ciprofloxacin. Clinically significant numbers of bacteria were recovered from 31 CAP and 94 AECB specimens. The predominant bacterial species in the CAP specimens were Streptococcus pneumoniae (21 isolates) and Haemophilus influenzae (four isolates). The AECB isolates mainly consisted of S. pneumoniae (38%), Moraxella catarrhalis (26%), H. influenzae (19%) and Pseudomonas aeruginosa (10%). The overall percentage susceptible of the isolates for each antibiotic was: amoxycillin, 64%; amoxycillin-clavulanate, 89%; cefuroxime, 87%; cefixime, 78%; erythromycin, 85%; roxithromycin, 87%; clarithromycin, 87%; azithromycin, 85%; ofloxacin, 95%; ciprofloxacin, 95%; and levofloxacin, 97%. The activities of levofloxacin and the other agents were also compared against 40 S. pneumoniae isolates, of which 20 were penicillin-non-susceptible, recovered from CAP and AECB specimens during the period 1994 to 1996. These strains were all susceptible to levofloxacin, but only 50% were susceptible to ciprofloxacin and 80% to ofloxacin. Twenty M. catarrhalis, 20 H. influenzae and 20 methicillin-susceptible S. aureus isolates were also all susceptible to levofloxacin. Furthermore, 20 community-acquired P. aeruginosa isolates showed similar percentage susceptible rates to levofloxacin and ciprofloxacin. These in-vitro results suggest that levofloxacin may be useful in the treatment of community-acquired lower respiratory tract infections.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0305-7453
pubmed:author
pubmed:issnType
Print
pubmed:volume
43 Suppl C
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-42
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10404336-Adult, pubmed-meshheading:10404336-Aged, pubmed-meshheading:10404336-Aged, 80 and over, pubmed-meshheading:10404336-Anti-Infective Agents, pubmed-meshheading:10404336-Bacteria, pubmed-meshheading:10404336-Bronchitis, pubmed-meshheading:10404336-Chronic Disease, pubmed-meshheading:10404336-Community-Acquired Infections, pubmed-meshheading:10404336-Haemophilus influenzae, pubmed-meshheading:10404336-Humans, pubmed-meshheading:10404336-Microbial Sensitivity Tests, pubmed-meshheading:10404336-Middle Aged, pubmed-meshheading:10404336-Moraxella (Branhamella) catarrhalis, pubmed-meshheading:10404336-Ofloxacin, pubmed-meshheading:10404336-Penicillin Resistance, pubmed-meshheading:10404336-Pneumonia, Bacterial, pubmed-meshheading:10404336-Pseudomonas aeruginosa, pubmed-meshheading:10404336-Streptococcus pneumoniae
pubmed:year
1999
pubmed:articleTitle
Comparative in-vitro activity of levofloxacin against isolates of bacteria from adult patients with community-acquired lower respiratory tract infections.
pubmed:affiliation
Centro de Estudios en Antimicrobianos, Buenos Aires Province, Argentina.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't