Frequency of Isolation and Antimicrobial Resistance of Gram-Negative and Gram-Positive Bacteria from Patients in Intensive Care Units of 25 European University Hospitals Participating in the European Arm of the SENTRY Antimicrobial Surveillance Program 1997–1998

2001 ◽  
Vol 20 (9) ◽  
pp. 617-625 ◽  
Author(s):  
A. Fluit ◽  
J. Verhoef ◽  
F. Schmitz ◽  
The European SENTRY Participants
Keyword(s):  
Intensive Care ◽  
Antimicrobial Resistance ◽  
Intensive Care Units ◽  
Surveillance Program ◽  
University Hospitals ◽  
Gram Positive ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Antimicrobial Surveillance ◽  
European University

scholarly journals Prevalence and antimicrobial susceptibility profile of multidrug-resistant bacteria among intensive care units patients at Ain Shams University Hospitals in Egypt—a retrospective study

2021 ◽  
Vol 96 (1) ◽  
Author(s):  
Noha Alaa Eldin Fahim
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Multidrug Resistant ◽  
Resistance Pattern ◽  
Resistant Bacteria ◽  
University Hospitals ◽  
Coagulase Negative Staphylococci ◽  
Gram Positive ◽  
Gram Negative ◽  
Overall Resistance

Abstract Background The nightmare of the rising numbers of multidrug-resistant organisms (MDROs) requires the implementation of effective stewardship programs. However, this should be preceeded by making available  evidence-based knowledge regarding the local antimicrobial resistance pattern, which is fundamental. The aim of the current study is to determine the prevalence of MDRO among different Ain Shams University Hospitals (ASUHs) intensive care units (ICUs) and detect the resistance profile of the common pathogens. Results The 1-year records of a total of 1280 pathogens were studied. The highest number of pathogens were isolated from blood cultures (44.84%), followed by urine (41.41%) then wound swabs (13.75%). Gram-negative isolates (57.5%) were more prevalent than gram-positive ones (31.1%). The most frequently isolated pathogens were Klebsiella spp. (22.5%), Escherichia coli (13.4%), and Coagulase-negative Staphylococci (12.5%). The highest percentage of resistance among gram-positive organisms was exhibited by penicillin (89.5%) followed by erythromycin (83.98%) and then cefoxitin (76.52%). None of the isolates showed resistance to linezolid and resistance to vancomycin was minimal (2.62%). Gram-negative isolates exhibited high overall resistance to all used antibiotic classes. The least frequency of resistance was recorded against nitrofurantoin (52.5%), amikacin (58.01%), followed by imipenem (59.78%) and meropenem (61.82%). All isolates of Pseudomonas and Acinetobacter showed 100% susceptibility to colistin. Conclusions The prevalence of antibiotic resistance in Ain Shams University Hospitals (ASUHs) was high among both gram-negative and gram-positive organisms. This high resistance pattern foreshadows an inevitable catastrophe that requires continuous monitoring and implementation of effective antibiotic stewardship.

Predictive Factors for the Development of Central Line–Associated Bloodstream Infection Due to Gram-Negative Bacteria in Intensive Care Unit Patients After Surgery

2008 ◽  
Vol 29 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Pranavi V. Sreeramoju ◽  
Jocelyn Tolentino ◽  
Sylvia Garcia-Houchins ◽  
Stephen G. Weber
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Bloodstream Infection ◽  
Predictive Factors ◽  
Tertiary Care ◽  
Central Line ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
Gram Positive Bacteria

Objectives.To examine the relative proportions of central line-associated bloodstream infection (BSI) due to gram-negative bacteria and due to gram-positive bacteria among patients who had undergone surgery and patients who had not. The study also evaluated clinical predictive factors and unadjusted outcomes associated with central line-associated BSI caused by gram-negative bacteria in the postoperative period.Design.Observational, case-control study based on a retrospective review of medical records.Setting.University of Chicago Medical Center, a 500-bed tertiary care center located on Chicago's south side.Patients.Adult intensive care unit (ICU) patients who developed central line-associated BSI.Results.There were a total of 142 adult patients who met the Centers for Disease Control and Prevention National Nosocomial Infection Surveillance System definition for central line-associated BSI. Of those, 66 patients (46.5%) had infections due to gram-positive bacteria, 49 patients (34.5%) had infections due to gram-negative bacteria, 23 patients (16.2%) had infections due to yeast, and 4 patients (2.8%) had mixed infections. Patients who underwent surgery were more likely to develop central line-associated BSI due to gram-negative bacteria within 28 days of the surgery, compared with patients who had not had surgery recently (57.6% vs 27.3%; P = .002). On multivariable logistic regression analysis, diabetes mellitus (adjusted odds ratio [OR], 4.6 [95% CI, 1.2-18.1]; P = .03) and the presence of hypotension at the time of the first blood culture positive for a pathogen (adjusted OR, 9.8 [95% CI, 2.5-39.1]; P = .001 ) were found to be independently predictive of central line-associated BSI caused by gram-negative bacteria. Unadjusted outcomes were not different in the group with BSI due to gram-negative pathogens, compared to the group with BSI due to gram-positive pathogens.Conclusions.Clinicians caring for critically ill patients after surgery should be especially concerned about the possibility of central line-associated BSI caused by gram-negative pathogens. The presence of diabetes and hypotension appear to be significant associated factors.

scholarly journals High Prevalence of Antimicrobial Resistance Among Gram-Negative Isolated Bacilli in Intensive Care Units at a Tertiary-Care Hospital in Yucatán Mexico

Medicina ◽  
2019 ◽  
Vol 55 (9) ◽  
pp. 588 ◽  
Author(s):  
Andrés H. Uc-Cachón ◽  
Carlos Gracida-Osorno ◽  
Iván G. Luna-Chi ◽  
Jonathan G. Jiménez-Guillermo ◽  
Gloria M. Molina-Salinas
Keyword(s):  
Escherichia Coli ◽  
Intensive Care ◽  
Antimicrobial Resistance ◽  
Intensive Care Units ◽  
High Resistance ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Care Hospital ◽  
Gram Negative ◽  
Resistance Rates

Background and Objectives: Antimicrobial resistance (AMR) is increasing worldwide and imposes significant life-threatening risks to several different populations, especially to those in intensive care units (ICU). The most commonly isolated organisms in ICU comprise gram-negative bacilli (GNB), and these represent a leading cause of serious infections. This study was conducted to describe the prevalence of resistance in GNB isolated from patients in adults, pediatric, and neonatal ICU in a tertiary-care hospital in Mérida, Mexico. Materials and Methods: A retrospective study was done on samples collected in Neonatal (NICU), Pediatric (PICU) and Adult (AICU) ICU of Unidad Médica de Alta Especialidad, Instituto Mexicano del Seguro Social in Mérida, México. The identification of isolates and antimicrobial susceptibility testing were performed using an automated system. Results: A total of 517 GNB strains were isolated. The most common positive culture was bronchial secretions. Pseudomonas aeruginosa was the prevalent pathogen in NICU and PICU, whereas Escherichia coli was common in the AICU. Overall, GNB exhibited a high resistance rates for Ampicillin (95.85%), Cefuroxime (84.17%), Piperacillin (82.93%), Cefotaxime (78.07%), Ceftriaxone (77.41%), Aztreonam (75.23%), Cefazolin (75.00%), and Ceftazidime (73.19%). There are significant differences in the resistance rates of GNB from different ICUs for penicillins, cephalosporins, carbapenems and fluoroquinolones drugs. Escherichia coli (multidrug-resistant [MDR] = 91.57%, highly resistant microorganisms [HRMO] = 90.36%) and Acinetobacter baumannii (MDR = 86.79%, HRMO = 83.02%) exhibited the highest percentage of MDR and HRMO profiles. The prevalence of the extended-spectrum beta-lactamases (ESBL)-producing isolates was 83.13% in E. coli, 78.84% in Klebsiella pneumoniae, and 66.67% in Proteus mirabilis, respectively. Conclusions: The high resistance rates to drugs were exhibited by our GNB isolates. Continuous surveillance and control of the use of antimicrobials are urgently needed to reduce the emergence and spreading of MDR, HRMO, and/or ESBL-producing bacilli.

scholarly journals Surveillance of antimicrobial resistance among Gram-negative isolates from intensive care units in eight hospitals in Turkey

2000 ◽  
Vol 46 (4) ◽  
pp. 649-649 ◽  
Author(s):  
S. g. S. Aksaray ◽  
B. Dokuzoguz ◽  
E. Guvener ◽  
M. Yucesoy ◽  
N. Yulug ◽  
...  
Keyword(s):  
Intensive Care ◽  
Antimicrobial Resistance ◽  
Intensive Care Units ◽  
Gram Negative

Increasing antimicrobial resistance in gram-negative bacilli isolated from patients in intensive care units

2000 ◽  
Vol 28 (3) ◽  
pp. 244-250 ◽  
Author(s):  
D.J. Flournoy ◽  
Richard L. Reinert ◽  
Connie Bell-Dixon ◽  
Chris A. Gentry
Keyword(s):  
Intensive Care ◽  
Antimicrobial Resistance ◽  
Intensive Care Units ◽  
Gram Negative

scholarly journals Re-thinking antimicrobial resistance transmission dynamics: a meta-analysis of cross-sectional studies at referral hospitals in Uganda

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 878
Author(s):  
Gerald Mboowa ◽  
Ivan Sserwadda ◽  
Dickson Aruhomukama
Keyword(s):  
Antimicrobial Resistance ◽  
Transmission Dynamics ◽  
Gram Positive ◽  
Cross Sectional ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Extended Spectrum ◽  
Hospital Environments ◽  
Referral Hospitals ◽  
Cross Sectional Studies

Background: Antimicrobial resistance threatens the achievements of modern medicine as well as the sustainability of effective global public health responses to the threat posed by infectious diseases. Extended-spectrum β-lactamase production in bacteria provides the main mechanism of resistance in gram-negative bacteria, particularly those belonging to the Enterobacteriaceae family as well as gram-positive bacteria. This study hence aimed at providing insights into the potential role of in-patients, their immediate hospital environments, out-patients, and their communities in the transmission of antimicrobial resistance via identifying gram-negative and gram-positive bacteria commonly isolated in samples collected from each of these patients/sites as well as their antimicrobial susceptibility profiles using extended-spectrum β-lactamase production in the same as the basis. Methods: Our study reviewed four cross-sectional studies conducted at national and regional referral hospitals in Uganda. Data on bacterial aetiology and antimicrobial susceptibility testing retrieved from the studies was imported into Microsoft Excel, cleaned, sand then exported to IBM SPSS statistics (version 16) for statistical analysis. The databases used were PubMed and Embase.  Results: We report that; Escherichia coli and Klebsiella pneumoniae are the most prevalent Enterobacteriaceae species in the samples that were collected in the studies reviewed; these species account for the highest proportions of extended-spectrum β-lactamase producers; Staphylococcus aureus is the most prevalent of the gram-positive bacteria isolated from the same samples, and accounts for the highest proportions of extended-spectrum β-lactamase producers in the gram-positive bacteria isolated, and similar Enterobacteriaceae species and gram-positive bacteria, are predominant in samples from in-patients, their immediate hospital environments, and out-patients. Conclusion: The insights provided indicate antimicrobial resistance transmission dynamics be re-thought and more comprehensive studies aimed at investigating the same be done to ascertain the source and transmission routes of antimicrobial-resistant bacteria in clinical settings.

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