Colistin therapy for multidrug-resistant Gram-negative infection: clinical outcome and risk factors

Infection ◽  
2013 ◽  
Vol 41 (6) ◽  
pp. 1195-1198 ◽  
Author(s):  
Y. H. Jun ◽  
S. J. Jeun ◽  
S. H. Kang ◽  
H. J. Choi
Keyword(s):  
Risk Factors ◽  
Clinical Outcome ◽  
Multidrug Resistant ◽  
Gram Negative

scholarly journals Outcomes and Risk Factors in Prosthetic Joint Infections by multidrug-resistant Gram-negative Bacteria: A Retrospective Cohort Study

Antibiotics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 340
Author(s):  
Raquel Bandeira da Silva ◽  
Mauro José Salles
Keyword(s):  
Risk Factors ◽  
Treatment Failure ◽  
Treatment Outcomes ◽  
Revision Arthroplasty ◽  
Multidrug Resistant ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Postoperative Hematoma ◽  
Prosthetic Joint ◽  
Prosthetic Joint Infections

Gram-negative bacteria (GNB), including multidrug-resistant (MDR) pathogens, are gaining importance in the aetiology of prosthetic joint infection (PJI). This retrospective observational study identified independent risk factors (RFs) associated with MDR-GNB PJI and their influence on treatment outcomes. We assessed MDR bacteria causing hip and knee PJIs diagnosed at a Brazilian tertiary hospital from January 2014 to July 2018. RFs associated with MDR-GNB PJI were estimated by bivariate and multivariate analyses using prevalence ratios (PRs) with significance at p < 0.05. Kaplan–Meier analysis was performed to evaluate treatment outcomes. Overall, 98 PJI patients were analysed, including 56 with MDR-GNB and 42 with other bacteria. Independent RFs associated with MDR-GNB PJI were revision arthroplasty (p = 0.002), postoperative hematoma (p < 0.001), previous orthopaedic infection (p = 0.002) and early infection (p = 0.001). Extensively drug-resistant GNB (p = 0.044) and comorbidities (p = 0.044) were independently associated with MDR-GNB PJI treatment failure. In sum, MDR-GNB PJI was independently associated with previous orthopaedic surgery, postoperative local complications and pre-existing infections and was possibly related to selective pressure on bacterial skin colonisation by antibiotics prescribed for early PJI. Infections due to MDR-GNB and comorbidities were associated with higher treatment failure rates.

scholarly journals 832. Assessment of Risk Factors Associated with Wide-resistance Gram-negative Bacteria Infections

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S457-S457
Author(s):  
Henry Pablo Lopes Campos e Reis ◽  
Ana Beatriz Ferreira Rodrigues ◽  
Julio César Castro Silva ◽  
Lia Pinheiro de Lima ◽  
Talita Lima Quinaher ◽  
...  
Keyword(s):  
Risk Factors ◽  
Mechanical Ventilation ◽  
Univariate Analysis ◽  
Multidrug Resistant ◽  
University Hospital ◽  
Gram Negative Bacteria ◽  
Multiresistant Pathogens ◽  
Gram Negative ◽  
Contact Isolation ◽  
Bladder Catheter

Abstract Background Enterobacteria and multidrug-resistant non-fermenting Gram-negative bacilli present a challenge in the management of invasive infections, leading to mortality rates due to their limited therapeutic arsenal. The objective of this work was to analyze risk factors that may be associated with these infections, for a better situational mapping and assertive decision-making in a university hospital in Brazil. Methods The study was conducted between January and September 2019, with 167 patients in contact isolation at a university hospital in Brazil. Potential outcome-related variables for wide-resistance Gram-negative bacteria (BGN) infections were evaluated. Risk factors were identified from univariate statistical analysis using Fisher’s test. Results 51 (30.5%) out of 167 patients in contact isolation evolved with wide-resistance BGN infection. Risk factors in univariate analysis were age, hospital unit and previous use of invasive devices. Patients aged up to 59 years were more likely to progress to infection than those aged over 60 years (p 0.0274, OR 2.2, 95% CI 1.1-4.5). Those admitted to the oncohematology (p &lt; 0.001, OR 32.5, Cl 9.1-116.3) and intensive care unit (p &lt; 0.001, OR 28.0, Cl 3.5-225.9) units were more likely to develop this type of infection. The least likely were those admitted to a kidney transplant unit (p 0.0034, OR 15.33, Cl 1.8-131.0). Prior use of mechanical ventilation (p 0.0058, OR 12.2, Cl 2.0-76.1) and delayed bladder catheter (p 0.0266, OR 5.0, Cl 1.2-20.1) in patients with respiratory and urinary tract infection, respectively, were also reported as risk factors related to these infections. The gender of the patients was not significant for the study. Conclusion This study determined that variables such as age, hospitalization unit, use of mechanical ventilation and delayed bladder catheter could be considered important risk factors in triggering the infectious process by wide-resistant gram-negative bacteria. Thus, the analysis of these factors becomes a great foundation to prevent the development of multiresistant pathogens through prevention strategies, prophylaxis management and more targeted empirical therapies. Disclosures All Authors: No reported disclosures

scholarly journals Risk factors and outcomes for multidrug-resistant Gram-negative bacilli bacteremia

2017 ◽  
Vol 5 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Swati Patolia ◽  
Getahun Abate ◽  
Nirav Patel ◽  
Setu Patolia ◽  
Sharon Frey
Keyword(s):  
Risk Factors ◽  
Urinary Catheter ◽  
Medical Center ◽  
Demographic Data ◽  
Significant Risk ◽  
Antibiotic Use ◽  
Multidrug Resistant ◽  
Solid Organ ◽  
Gram Negative ◽  
Source Of Infection

Background: The incidence of multidrug-resistant (MDR) organisms is increasing along with mortality. Identifying risk factors for the development of MDR Gram-negative bacilli (GNB) bacteremia could greatly impact patient care and management. Methods: Data from the electronic health record of patients with GNB over 13-month period were collected at a single university medical center. Baseline demographic data, risk factor, microbiological data, recurrence of bacteremia, and mortality were recorded. Results: A total of 177 patients were included in the analysis. MDR GNB occurred in 46 patients (26%). The mortality rate in the MDR group was 34.8% compared to 13.7% in non-MDR group ( p = 0.002). In multivariate analysis, diabetes mellitus [DM; odds ratio (OR): 2.8, 95% confidence interval (CI): 1–4.88], previous antibiotic use (OR: 2.93, 95% CI: 1.25–6.87), and urinary catheter as a source of infection (OR 5.96, 95% CI: 1.78–19.94) were significant risk factors for the development of MDR GNB. In addition, end-stage liver disease (OR: 3.64, 95% CI: 1.07–12.3), solid organ malignancy (OR: 3.64, 95% CI: 1.25–10.56), intra-abdominal source of infection (OR: 3.66, 95% CI: 1.14–11.73), inappropriate empiric antibiotics (OR 7.59, 95% CI: 1.68–34.34) and urinary catheter as a source of infection (OR 5.68, 95% CI: 1.37–23.5) were significant factors for mortality in patients with MDR GNB. Conclusion: Our study provides important information about the risk factors for the development of MDR GNB bacteremia and helps prognosticate patient with MDR GNB.

scholarly journals Risk Factors for Bloodstream Infections due to Multidrug-resistant Gram-negative Non-fermenting Bacteria in a Burn Unit

2008 ◽  
Vol 12 ◽  
pp. S39-S40
Author(s):  
Süheyla Senger ◽  
Funda Timurkaynak ◽  
Hande Arslan ◽  
Turhan Togan ◽  
Özgür Başaran ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bloodstream Infections ◽  
Multidrug Resistant ◽  
Gram Negative ◽  
Burn Unit ◽  
Fermenting Bacteria

scholarly journals Bacteria drug resistance profile affects knee and hip periprosthetic joint infection outcome with debridement, antibiotics and implant retention

2020 ◽  
Author(s):  
Bruno Alves Rudelli ◽  
Pedro Nogueira Giglio ◽  
Vladimir Cordeiro Carvalho ◽  
Jose Ricardo Pecora ◽  
Henrique Melo Campos Gurgel ◽  
...  
Keyword(s):  
Risk Factors ◽  
Treatment Failure ◽  
Failure Rate ◽  
Multidrug Resistant ◽  
The Other ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Treatment Failure Rate ◽  
Drug Resistance Profile ◽  
Implant Retention

Abstract BACKGROUND: debridement, antibiotics and implant retention (DAIR) with the exchange of modular components is the most widely used option for the treatment of acute periprosthetic joint infections. The objective of this study is to evaluate the effect of bacteria drug resistance profile on the success rates of DAIR. METHODS: All early acute periprosthetic infections in hip and knee arthroplasties treated with DAIR at our institution over the period from 2011 to 2015 were retrospectively analyzed. The success rate was evaluated according to the type of organism identified in culture: multidrug-sensitive (MSB), methicillin-resistant Staphylococcus aureus (MRSA), multidrug-resistant Gram-negative bacteria (MRB) and according to other risk factors for treatment failure. The data were analyzed using univariate and multivariate statistics.RESULTS: Fifty-seven patients were analyzed; there were 37 in the multidrug-sensitive bacteria (MSB) group, 11 in the methicillin-resistant Staphylococcus aureus (MRSA) group and 9 in the other multidrug-resistant Gram-negative bacteria (MRB) group. There was a statistically significant difference (p<0.05) in the treatment failure rate among the three groups: 8.3% for the MSB group, 18.2% for the MRSA group and 55.6% for the MRB group (p=0.005). Among the other risk factors for treatment failure, the presence of inflammatory arthritis presented a failure rate of 45.1 (p<0.05).CONCLUSION: DAIR showed a good success rate in cases of early acute infection by multidrug-sensitive bacteria. In the presence of infection by multidrug-resistant bacteria or association with rheumatic diseases the treatment failure rate was higher and other surgical options should be considered in this specific population. The MRSA group showed intermediate results between MSB and MRB and should be carefully evaluated.

scholarly journals Burden and Risk Factors of Multidrug-Resistant Gram-Negative Organisms in Veterans With Spinal Cord Injury

2016 ◽  
Vol 3 (suppl_1) ◽  
Author(s):  
Charlesnika Evans ◽  
Margaret Fitzpatrick ◽  
Linda Poggensee ◽  
Swetha Ramanathan ◽  
Sherri Lavela ◽  
...  
Keyword(s):  
Risk Factors ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Multidrug Resistant ◽  
Gram Negative ◽  
Cord Injury ◽  
Gram Negative Organisms

Risk Factors for 30-Day Mortality in Neonatal Gram-Negative Bacilli Sepsis

2019 ◽  
Vol 37 (07) ◽  
pp. 689-694
Author(s):  
Anucha Thatrimontrichai ◽  
Nutchana Premprat ◽  
Waricha Janjindamai ◽  
Supaporn Dissaneevate ◽  
Gunlawadee Maneenil
Keyword(s):  
Risk Factors ◽  
Septic Shock ◽  
Neonatal Intensive Care ◽  
Proportional Hazards ◽  
Proportional Hazards Model ◽  
Case Fatality ◽  
Multidrug Resistant ◽  
Gram Negative ◽  
Hazards Model ◽  
Cox's Proportional Hazards Model

Objective Multidrug-resistant gram-negative bacilli (MDR-GNB) have emerged globally as a serious threat and with a high case fatality rate (CFR). Study Design We performed a case–control study in a Thai neonatal intensive care unit to identify the risk factors for 30-day CFR of GNB sepsis between 1991 and 2017. The CFR was analyzed by Cox's proportional hazards model. Results For 27 years, the percentage of MDR-GNB from GNB sepsis was 66% (169/257). The medians (interquartile ranges) of gestational age and birth weight of the neonates with GNB sepsis were 33 (29–38) weeks and 1,817 (1,100–2,800) grams, respectively. The 30-day CFRs of the neonates with MDR-GNB and non-MDR-GNB sepsis were 33% (56/169) and 20% (18/88), respectively, (hazard ratio [HR] = 1.74; 95% confidence interval [CI]: 1.03–2.97; p = 0.04). Using Cox's proportional hazards model, nonsurvivors in GNB sepsis were more likely to have septic shock (adjusted HR [aHR] = 6.67; 95% CI: 3.28–13.57; p < 0.001) or no microbiological cure (aHR = 10.65; 95% CI: 4.98–22.76; p < 0.001) than survivors. Conclusion Neonates suspected of sepsis with septic shock need broad-spectrum empirical antimicrobial therapy until the second successive negative culture, especially in high MDR areas.

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