Abstract
This study evaluated the in vitro activities of tigecycline, ertapenem, isepamicin, and other comparators against 861 bacterial isolates recovered from patients treated in three major teaching hospitals in 2003. MICs to antimicrobial agents were determined by the agar dilution method. High rates of oxacillin resistance (58%) in Staphylococcus aureus (60 isolates), and vancomycin resistance (21%) and quinupristin-dalfopristin nonsusceptibility (39%) in Enterococcus faecium (34 isolates) were found. Carbapenems had excellent in vitro activities (≥98% susceptibility) against the 419 isolates of Enterobacteriaceae, with the MIC 50 and MIC 90 of imipenem, meropenem, and ertapenem being 0.25 and 4 mg/L, 0.03 and 0.12 mg/L, and 0.03 and 0.5 mg/L, respectively. For, Pseudomonas aeruginosa (74 isolates) and Burkholderia cepacia (21 isolates), meropenem (MIC 90, 0.25, 2, and 4 mg/L, respectively) had better in vitro activities than imipenem (MIC 90, 8, 4, and 32 mg/L, respectively) and ertapenem (MIC 90, 0.5, > 32, and 32 mg/L, respectively). Isepamicin had a similar activity with amikacin against all Enterobacteriaceae, Pseudomonas aeruginosa, B. cepacia, and Acinetobacter baumannii, except for C. freundii isolates in which isepamicin had an eight-fold activity better than amikacin. Tigecycline had excellent in vitro activities against all isolates tested (MIC 90, ≤1 mg/L) including 14 pandrug-resistant A. baumannii isolates (MICs, 1-4 mg/L), except for Proteus mirabilis (59 isolates; MIC 90, 8 mg/L), Bacteroides fragilis (60 isolates; MIC 90, 8 mg/L), P. aeruginosa (MIC 90,16 mg/L), and B. cepacia (21 isolates; MIC 90, 16 mg/L). Tigecycline, carbapenems, and isepamicin exhibited better or comparable in vitro activities against a wide spectrum of commonly encountered bacteria than other comparator antimicrobials and may represent therapeutic options for infections due to multidrug-resistant pathogens.
| Original language | English |
|---|---|
| Pages (from-to) | 330-341 |
| Number of pages | 12 |
| Journal | Microbial Drug Resistance |
| Volume | 11 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Dec 2005 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Microbiology (medical)
- Pharmacology
- Immunology
- Microbiology
Cite this
In vitro activities of tigecycline, ertapenem, isepamicin, and other antimicrobial agents against clinically isolated organisms in Taiwan. / Cheng, Nai Cheng; Hsueh, Po Ren; Liu, Yung Ching; Shyr, Jainn Ming; Huang, Wen Kuei; Teng, Lee Jene; Liu, Cheng Yi.
In: Microbial Drug Resistance, Vol. 11, No. 4, 12.2005, p. 330-341.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - In vitro activities of tigecycline, ertapenem, isepamicin, and other antimicrobial agents against clinically isolated organisms in Taiwan
AU - Cheng, Nai Cheng
AU - Hsueh, Po Ren
AU - Liu, Yung Ching
AU - Shyr, Jainn Ming
AU - Huang, Wen Kuei
AU - Teng, Lee Jene
AU - Liu, Cheng Yi
PY - 2005/12
Y1 - 2005/12
N2 - This study evaluated the in vitro activities of tigecycline, ertapenem, isepamicin, and other comparators against 861 bacterial isolates recovered from patients treated in three major teaching hospitals in 2003. MICs to antimicrobial agents were determined by the agar dilution method. High rates of oxacillin resistance (58%) in Staphylococcus aureus (60 isolates), and vancomycin resistance (21%) and quinupristin-dalfopristin nonsusceptibility (39%) in Enterococcus faecium (34 isolates) were found. Carbapenems had excellent in vitro activities (≥98% susceptibility) against the 419 isolates of Enterobacteriaceae, with the MIC 50 and MIC 90 of imipenem, meropenem, and ertapenem being 0.25 and 4 mg/L, 0.03 and 0.12 mg/L, and 0.03 and 0.5 mg/L, respectively. For, Pseudomonas aeruginosa (74 isolates) and Burkholderia cepacia (21 isolates), meropenem (MIC 90, 0.25, 2, and 4 mg/L, respectively) had better in vitro activities than imipenem (MIC 90, 8, 4, and 32 mg/L, respectively) and ertapenem (MIC 90, 0.5, > 32, and 32 mg/L, respectively). Isepamicin had a similar activity with amikacin against all Enterobacteriaceae, Pseudomonas aeruginosa, B. cepacia, and Acinetobacter baumannii, except for C. freundii isolates in which isepamicin had an eight-fold activity better than amikacin. Tigecycline had excellent in vitro activities against all isolates tested (MIC 90, ≤1 mg/L) including 14 pandrug-resistant A. baumannii isolates (MICs, 1-4 mg/L), except for Proteus mirabilis (59 isolates; MIC 90, 8 mg/L), Bacteroides fragilis (60 isolates; MIC 90, 8 mg/L), P. aeruginosa (MIC 90,16 mg/L), and B. cepacia (21 isolates; MIC 90, 16 mg/L). Tigecycline, carbapenems, and isepamicin exhibited better or comparable in vitro activities against a wide spectrum of commonly encountered bacteria than other comparator antimicrobials and may represent therapeutic options for infections due to multidrug-resistant pathogens.
AB - This study evaluated the in vitro activities of tigecycline, ertapenem, isepamicin, and other comparators against 861 bacterial isolates recovered from patients treated in three major teaching hospitals in 2003. MICs to antimicrobial agents were determined by the agar dilution method. High rates of oxacillin resistance (58%) in Staphylococcus aureus (60 isolates), and vancomycin resistance (21%) and quinupristin-dalfopristin nonsusceptibility (39%) in Enterococcus faecium (34 isolates) were found. Carbapenems had excellent in vitro activities (≥98% susceptibility) against the 419 isolates of Enterobacteriaceae, with the MIC 50 and MIC 90 of imipenem, meropenem, and ertapenem being 0.25 and 4 mg/L, 0.03 and 0.12 mg/L, and 0.03 and 0.5 mg/L, respectively. For, Pseudomonas aeruginosa (74 isolates) and Burkholderia cepacia (21 isolates), meropenem (MIC 90, 0.25, 2, and 4 mg/L, respectively) had better in vitro activities than imipenem (MIC 90, 8, 4, and 32 mg/L, respectively) and ertapenem (MIC 90, 0.5, > 32, and 32 mg/L, respectively). Isepamicin had a similar activity with amikacin against all Enterobacteriaceae, Pseudomonas aeruginosa, B. cepacia, and Acinetobacter baumannii, except for C. freundii isolates in which isepamicin had an eight-fold activity better than amikacin. Tigecycline had excellent in vitro activities against all isolates tested (MIC 90, ≤1 mg/L) including 14 pandrug-resistant A. baumannii isolates (MICs, 1-4 mg/L), except for Proteus mirabilis (59 isolates; MIC 90, 8 mg/L), Bacteroides fragilis (60 isolates; MIC 90, 8 mg/L), P. aeruginosa (MIC 90,16 mg/L), and B. cepacia (21 isolates; MIC 90, 16 mg/L). Tigecycline, carbapenems, and isepamicin exhibited better or comparable in vitro activities against a wide spectrum of commonly encountered bacteria than other comparator antimicrobials and may represent therapeutic options for infections due to multidrug-resistant pathogens.
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UR - http://www.scopus.com/inward/citedby.url?scp=30744457825&partnerID=8YFLogxK
U2 - 10.1089/mdr.2005.11.330
DO - 10.1089/mdr.2005.11.330
M3 - Article
C2 - 16359192
AN - SCOPUS:30744457825
VL - 11
SP - 330
EP - 341
JO - Microbial Drug Resistance
JF - Microbial Drug Resistance
SN - 1076-6294
IS - 4
ER -