scholarly journals Change of antibiotic-resistant nosocomial microflora: Results of implementation of the strategy for control of antimicrobial treatment in multi speciality in-patient hospital

2015 ◽  
Vol 20 (5) ◽  
pp. 11-18 ◽  
Author(s):  
V. G Gusarov ◽  
E. E Nesterova ◽  
N. N Lashenkova ◽  
N. V Petrova ◽  
N. A Silaeva ◽  
...  

The unreasonable use of antimicrobial preparations is the one of leading causes of the increase of microbial resistance to antibiotics in in-patient departments. With the aim of containment of the resistance of nosocomial flora in multi-disciplinary in-patient hospital during two years there is used Antimicrobial Stewardship Program (ASP) with the involvement of a team of specialists in appropriate antibiotic therapy, protocols of perioperative antibiotic prophylaxis and empiric antibiotic therapy (EAT), educational programs for personal and measures for the assessment of the efficacy of ASP. The efficacy was evaluated with the use of such indices as the change of the pattern of nosocomial germs, incidence of methicillin-resistant Staphylococcus spp., vancomycin-resistant strains of Enterococcus faecium (VRE), incidence of extended-spectrum beta-lactamases(ESBL)-producing microorganisms, prevalence of carbapenem-resistant gram-negatives, drug resistance index (DRI). Implementation of ASP allowed to properly change the structure of nosocomial germs, to attain the real decline of the incidence of methicillinresistant Staphylococcus aureus (MRSA) from 16,2% (95%CI: 12-20,4) to 10,4% (95%CI: 7-13,8), p

2021 ◽  
Vol 60 (2) ◽  
pp. 4-8
Author(s):  
I. F. Shishlo ◽  
S. A. Krasny ◽  
Yu. N. Dolgina

Enterobacteriaceae family microorganisms, specifically E. coli and K. pneumoniae isolates, are the most common activators of postoperative peritonitis in oncology. Many of these microorganisms produce extended-spectrum beta-lactamases (ESBL). The deemed resistance of ESBL-producing enterobacteria to all β-lactam antibiotics, except for carbapenems, leads to ineffectiveness of empiric antibiotic therapy. Purpose of the study: To define the risk factors of peritoneal contamination with ESBL-producing enterobacteria for choosing optimal empirical antibacterial therapy on the example of a specific cancer patient with postoperative peritonitis. Results: Independent risk factors of peritoneal contamination with ESBL-producing enterobacteria included “the administration of antibiotics for more than three days” (OR 106, 95% CI 21.0-537, p<0.001), “two or more relaparotomies” (OR 2.66, 95% CI 1.32-5.34, p =0.006), and “postoperative preventive antibiotic treatment” (OR 0.17, 95% CI 0.04-0.75, p =0.02). The obtained prognostic model allowed predicting the infection with ESBL-producing enterobacteria before establishing the postoperative peritonitis microbial etiology. The model sensitivity was 94.7%, overall predictive accuracy was 73.1. Conclusion: Prolonged administration of antibiotics (3rd-generation cephalosporins and/or fluoroquinolones) after cancer surgery to prevent surgical infections is the main independent risk factor of peritoneal contamination with ESBL- producing enterobacteria.


CHEST Journal ◽  
2010 ◽  
Vol 138 (4) ◽  
pp. 856A
Author(s):  
Kyle W. Bierman ◽  
Lee E. Morrow ◽  
Joshua D. Holweger ◽  
John T. Ratelle ◽  
Mark A. Malesker

Author(s):  
S. Reisfeld ◽  
M. Paul ◽  
B. S. Gottesman ◽  
P. Shitrit ◽  
L. Leibovici ◽  
...  

2018 ◽  
Vol 103 (2) ◽  
pp. e2.43-e2
Author(s):  
Michelle Kirrane ◽  
Rob Cunney ◽  
Roisin McNamara ◽  
Ike Okafor

Appropriate choice of empiric antibiotic therapy, in line with local guidelines, improves outcome for children with infection, while reducing adverse drug effects, cost, and selection of antimicrobial resistance. Data from national point prevalence surveys showed compliance with local prescribing guidelines at our hospital was suboptimal. A team with representatives from the pharmacy, microbiology and emergency departments collaborated with prescribers to improve the quality of empiric antibiotic prescribing. The project aim was, using the ‘Model for Improvement’, to ensure ≥90% of children admitted via the Emergency Department (ED) and commenced on antibiotic therapy, have a documented indication and a choice of therapy in line with local antimicrobial guidelines.MethodResults of weekly audits of the first ten children admitted via ED and started on antibiotics were fed back to prescribers. Front line ownership techniques were used to develop ideas for change, including; regular antibiotic prescribing discussion at Monday morning handover meeting, antibiotic ‘spot quiz’ for prescribers, updates to prescribing guidelines (along with improved access and promotion of prescribing app), printed ID badge guideline summary cards, reminders and guideline summaries at point of prescribing in ED.Collection of audit data initially proved challenging, but was resolved through a series of rapid PDSA cycles. Initial support from ED consultants and other ED staff facilitated establishment of the project. Presentation of weekly run charts to prescribers fostered considerable support among consultants and non-consultant doctors (NCHDs). We saw a shift in perspective from ‘how is your project going?’ to ‘How are we doing?’.ResultsDocumentation of indication and guideline compliance increased from a median of 30% in December 2014/January 2015 to 100% consistently from February 2015 to the present. It is felt that a change in approach to antimicrobial prescribing is now embedded in our hospital culture as this improvement has remained constant through three NCHD changeovers. A comparison of 2014 Antimicrobial expenditure to 2015 figures shows a reduction in expenditure of €101,078.44.ConclusionThis project has inspired other departments to develop local QIPs and has encouraged the surgical teams to lead their own audits in antimicrobial stewardship. An improvement in other areas of antimicrobial prescribing has also been noted e.g. documentation of review date.The initiative has been shared with other hospitals throughout Ireland via presentations at the National Patient Safety Conference, Antimicrobial Awareness day and the Irish Antimicrobial Pharmacist’s Group meeting. It has also been shared at both European and international conferences. The project was a shortlisted finalist for a national healthcare excellence award and has been rolled out as part of a national quality improvement collaborative.


PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248817
Author(s):  
Anthony D. Bai ◽  
Neal Irfan ◽  
Cheryl Main ◽  
Philippe El-Helou ◽  
Dominik Mertz

Background It is unclear if a local audit would be useful in providing guidance on how to improve local practice of empiric antibiotic therapy. We performed an audit of antibiotic therapy in bacteremia to evaluate the proportion and risk factors for inadequate empiric antibiotic coverage. Methods This retrospective cohort study included patients with positive blood cultures across 3 hospitals in Hamilton, Ontario, Canada during October of 2019. Antibiotic therapy was considered empiric if it was administered within 24 hours after blood culture collection. Adequate coverage was defined as when the isolate from blood culture was tested to be susceptible to the empiric antibiotic. A multivariable logistic regression model was used to predict inadequate empiric coverage. Diagnostic accuracy of a clinical pathway based on patient risk factors was compared to clinician’s decision in predicting which bacteria to empirically cover. Results Of 201 bacteremia cases, empiric coverage was inadequate in 56 (27.9%) cases. Risk factors for inadequate empiric coverage included unknown source at initiation of antibiotic therapy (adjusted odds ratio (aOR) of 2.76 95% CI 1.27–6.01, P = 0.010) and prior antibiotic therapy within 90 days (aOR of 2.46 95% CI 1.30–4.74, P = 0.006). A clinical pathway that considered community-associated infection as low risk for Pseudomonas was better at ruling out Pseudomonas bacteremia with a negative likelihood ratio of 0.17 (95% CI 0.03–1.10) compared to clinician’s decision with negative likelihood ratio of 0.34 (95% CI 0.10–1.22). Conclusions An audit of antibiotic therapy in bacteremia is feasible and may provide useful feedback on how to locally improve empiric antibiotic therapy.


2020 ◽  
Author(s):  
Elisa Alvarez-Artero ◽  
Amaia Campo Nuñez ◽  
Inmaculada Garcia Garcia ◽  
Moises Garcia Bravo ◽  
Olia Cores ◽  
...  

Abstract Background Urinary tract infections (UTIs) are frequently caused by Enterococcus spp. We aim to define the risk factors involved in UTIs caused by Enterococcus. Determine the overall mortality and predictive risk factors. Methods A retrospective in-patients study was conducted with bacteriemic UTIs caused by Enterococcus spp. We compared bacteriemic UTIs caused by Enterococcus spp. vs. a random sample of 100 in-patients with bacteriemic UTIs caused by others enterobacteria. Results We found 106 in-patients with UTIs caused by Enterococcus spp., 51 of whom had concomitant positive blood cultures. Distribution by species was: 83% E. faecalis and 17% E. faecium, with a Charlson comorbidity index of 5.9 ± 2.9. When we compared bacteriemic UTIs caused by Enterococcus spp. vs. bacteriemic UTIs caused by others enterobacteria we found the following independent predictors of bacteriemic UTI by Enterococcus: male sex with an OR of 6.1 (95%CI 2.3–16.1), uropathy with an OR of 4.1 (1.6–10.1), nosocomial infection with an OR of 3.8 (1.4–10.3), urinary cancer with an OR of 6.4 (1.3–30.3) and previous antimicrobial treatment with an OR of 18 (5.2–62.1). Overall, in-patient mortality was 16.5%, which was associated with a higher Sequential Organ Failure Assessment (SOFA) score (> 4), severe comorbidity such as immunosuppression, malignant hemopathy and nephrostomy, or Enterococcus faecium species and its pattern or resistance to ampicillin or vancomycin (p < 0.05). Appropriate empiric antibiotic therapy was not associated with a better prognosis (p > 0.05). Conclusions Enterococcus spp. is a frequent cause of complicated UTI by a profile of risk factors. High mortality secondary to a severe clinical setting and high comorbidity may be sufficient reasons for implementing empiric treatment of patients at risk, although we did not show a higher survival rate in patients with this treatment strategy.


Author(s):  
Thalita M. FREIRE ◽  
Elana F. CHAVES ◽  
José M. ALCÂNTARA-NETO ◽  
Paulo P. SOUSA ◽  
Jorge N. RODRIGUES ◽  
...  

Objective: To assess the microbiological profile of culture results of patients admitted in a public university hospital from Fortaleza, Brazil. Methods: This is a descriptive and prospective study with patients being followed up in an antimicrobial stewardship program and in use of reserve or strategic antimicrobial agents, which had cultures requested between May and November 2017. Data was obtained from the patient’s records, registered and analyzed using Excel spreadsheets and Graph Pad Prism statistical software. Results: Male patients (60.2%), non-elderly (63.6%), with hospital discharge clinical outcome (84.7%) and kidney transplant specialty (35.6%) prevailed. We analyzed the result of 490 cultures, with a higher frequency of urine cultures (35.3%) and blood cultures (34.7%) than others cultures. The specialty with most requests was kidney and liver transplant. 19.8% of the cultures were positive, predominantly gram-negative bacilli (72.2%), especially in the urine cultures of transplant patients. Microbiological analysis showed that Klebsiella pneumoniae (49.1%) and Escherichia coli (39.6%) were the bacteria most frequently found. Regarding the microbial resistance profile, we identified carbapenemase producing bacteria (16.7%), Extended spectrum beta-lactamases (ESBL; 33.3%) within the group of gramnegative bacilli and Vancomycin-resistence enterococcus (VRE; 13.5%) within the group of gram-positive cocci. Conclusions: The study enabled the knowledge of the profile of microorganisms isolated in the wards under study, which is of fundamental importance for local epidemiological studies and for the control of microbial resistance.


2019 ◽  
Vol 2019 ◽  
pp. 1-3 ◽  
Author(s):  
Grant Shaddix ◽  
Kalindi Patel ◽  
Matthew Simmons ◽  
Kelsie Burner

Staphylococcus aureus is one of the most virulent Gram-positive organisms responsible for a multitude of infections, including bacteremia. Methicillin-resistant Staphylococcus aureus (MRSA) is of special concern in patients with bacteremia. Due to its associated poor clinical outcomes, morbidity, and mortality, the superlative salvage regimen for persistent MRSA bacteremia remains uncertain. An 85-year-old white female presented with persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Empiric antibiotic therapy with linezolid was initiated prior to blood culture results. Once MRSA bacteremia was confirmed, alternative antibiotic therapy with daptomycin was initiated. Blood cultures remained positive for MRSA despite three days of daptomycin therapy after which ceftaroline was added to the antibiotic regimen. Blood cultures remained positive for MRSA despite seven days of combination therapy with daptomycin and ceftaroline. Salvage therapy was then initiated with daptomycin, linezolid, and meropenem. One day following initiation of salvage therapy, blood cultures revealed no bacterial growth for the remainder of the length of stay. This report supports the effectiveness of salvage therapy consisting of daptomycin, linezolid, and meropenem in patients with persistent MRSA bacteremia.


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