Abstract:
:The Study for Monitoring Antimicrobial Resistance Trends has monitored the in vitro activity of several recommended antimicrobials used in the management of intra-abdominal infections (IAIs) globally since 2002. In this report, we document the changing susceptibility patterns to recommended antimicrobials in Klebsiella pneumoniae isolates from patients with IAIs in 11 Latin American countries between 2008 and 2012 and describe the beta-lactamases encoded by phenotypically extended-spectrum beta-lactamase (ESBL)-positive and ertapenem-nonsusceptible isolates. Overall, the incidence of phenotypically ESBL-positive K. pneumoniae did not change significantly from 2008 (40.4%) to 2012 (41.2%) (P > 0.05). However, trend analysis documented an increase in isolates encoding K. pneumoniae carbapenemase (KPC) or both KPC and an ESBL. Decreasing susceptibility (P < 0.05) was noted for cefepime, ceftazidime, ceftriaxone, ertapenem, and imipenem among all K. pneumoniae, as well as for cefepime, cefotaxime, cefoxitin, ceftriaxone, ertapenem, and imipenem among ESBL-positive isolates, while susceptibility of ESBL-negative isolates to ampicillin-sulbactam actually increased (P < 0.05).
journal_name
Diagn Microbiol Infect Disjournal_title
Diagnostic microbiology and infectious diseaseauthors
Kazmierczak KM,Lob SH,Hoban DJ,Hackel MA,Badal RE,Bouchillon SKdoi
10.1016/j.diagmicrobio.2015.03.025subject
Has Abstractpub_date
2015-07-01 00:00:00pages
209-14issue
3eissn
0732-8893issn
1879-0070pii
S0732-8893(15)00117-0journal_volume
82pub_type
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