scholarly journals Risk Factors for Mortality among Patients with Pseudomonas aeruginosa Bloodstream Infections: What Is the Influence of XDR Phenotype on Outcomes?

2020 ◽  
Vol 9 (2) ◽  
pp. 514
Author(s):  
María Milagro Montero ◽  
Inmaculada López Montesinos ◽  
Hernando Knobel ◽  
Ema Molas ◽  
Luisa Sorlí ◽  
...  
Keyword(s):  
Risk Factors ◽  
Pseudomonas Aeruginosa ◽  
High Risk ◽  
Antibiotic Therapy ◽  
Antimicrobial Therapy ◽  
Protective Factor ◽  
Bloodstream Infections ◽  
Clinical Severity ◽  
Risk Source ◽  
The Impact

This study aimed to assess the impact of extensively drug-resistant (XDR) phenotype on mortality in Pseudomonas aeruginosa bacteremia. A retrospective cohort study was performed in a tertiary hospital from January 2000 to December 2018. All consecutive prospectively recorded P. aeruginosa bacteremia in adult patients were assessed. In this study, 382 patients were included, of which 122 (31.9%) due to XDR P. aeruginosa. Independent factors associated with 14-day mortality were as follows: high-risk source of bacteremia (hazard ratio (HR) 3.07, 95% confidence interval (CI), 1.73–5.46), septic shock (HR 1.75, 95% CI, 1.12–2.75), and higher Pitt scores (one-point increments; HR 1.25, 95% CI, 1.12–1.38). Otherwise, the appropriateness of definitive antibiotic therapy was a protective factor (HR 0.39, 95% CI, 0.24–0.62). The same variables were also associated with 30-day mortality. XDR phenotype was not associated with 14- or 30-day mortality. In a subanalysis considering only high-risk source cases, combined antimicrobial therapy was independently associated with 14-day favorable outcome (HR 0.56, 95% CI, 0.33–0.93). In conclusion, XDR phenotype was not associated with poor prognosis in patients with P. aeruginosa bacteremia in our cohort. However, source of infection, clinical severity, and inappropriate definitive antibiotic therapy were risk factors for mortality. Combined antimicrobial therapy should be considered for high-risk sources.

scholarly journals Bloodstream Infections Caused by Antibiotic-Resistant Gram-Negative Bacilli: Risk Factors for Mortality and Impact of Inappropriate Initial Antimicrobial Therapy on Outcome

2005 ◽  
Vol 49 (2) ◽  
pp. 760-766 ◽  
Author(s):  
Cheol-In Kang ◽  
Sung-Han Kim ◽  
Wan Beom Park ◽  
Ki-Deok Lee ◽  
Hong-Bin Kim ◽  
...  
Keyword(s):  
Risk Factors ◽  
High Risk ◽  
Mortality Rate ◽  
Antimicrobial Therapy ◽  
Treated Group ◽  
Antibiotic Resistant ◽  
Gram Negative ◽  
Gram Negative Bacteremia ◽  
Initial Antimicrobial Therapy ◽  
Risk Source

ABSTRACT The marked increase in the incidence of infections due to antibiotic-resistant gram-negative bacilli in recent years is of great concern, as patients infected by those isolates might initially receive antibiotics that are inactive against the responsible pathogens. To evaluate the effect of inappropriate initial antimicrobial therapy on survival, a total of 286 patients with antibiotic-resistant gram-negative bacteremia, 61 patients with Escherichia coli bacteremia, 65 with Klebsiella pneumoniae bacteremia, 74 with Pseudomonas aeruginosa bacteremia, and 86 with Enterobacter bacteremia, were analyzed retrospectively. If a patient received at least one antimicrobial agent to which the causative microorganisms were susceptible within 24 h of blood culture collection, the initial antimicrobial therapy was considered to have been appropriate. High-risk sources of bacteremia were defined as the lung, peritoneum, or an unknown source. The main outcome measure was 30-day mortality. Of the 286 patients, 135 (47.2%) received appropriate initial empirical antimicrobial therapy, and the remaining 151 (52.8%) patients received inappropriate therapy. The adequately treated group had a 27.4% mortality rate, whereas the inadequately treated group had a 38.4% mortality rate (P = 0.049). Multivariate analysis showed that the significant independent risk factors of mortality were presentation with septic shock, a high-risk source of bacteremia, P. aeruginosa infection, and an increasing APACHE II score. In the subgroup of patients (n = 132) with a high-risk source of bacteremia, inappropriate initial antimicrobial therapy was independently associated with increased mortality (odds ratio, 3.64; 95% confidence interval, 1.13 to 11.72; P = 0.030). Our data suggest that inappropriate initial antimicrobial therapy is associated with adverse outcome in antibiotic-resistant gram-negative bacteremia, particularly in patients with a high-risk source of bacteremia.

scholarly journals Trends of Healthcare-associated Infections in a Tuinisian University Hospital and Impact of COVID-19 Pandemic

2021 ◽  
Vol 58 ◽  
pp. 004695802110679
Author(s):  
Hela Ghali ◽  
Asma Ben Cheikh ◽  
Sana Bhiri ◽  
Selwa Khefacha ◽  
Houyem Said Latiri ◽  
...  
Keyword(s):  
Risk Factors ◽  
Urinary Tract ◽  
Protective Factor ◽  
Bloodstream Infections ◽  
Point Prevalence ◽  
University Hospital ◽  
Healthcare Associated Infection ◽  
Tract Infections ◽  
Healthcare Associated ◽  
The Impact

Background Although efforts to manage coronavirus disease 2019 (COVID-19) pandemic have understandably taken immediate priority, the impacts on traditional healthcare-associated infection (HAI) surveillance and prevention efforts remain concerning. Aim To describe trends in HAIs in a Tunisian university hospital through repeated point prevalence surveys over 9 years, assess the impact of measures implemented for COVID-19 pandemic, and to identify associated factors of HAI. Methods The current study focused on data collected from annual point prevalence surveys conducted from 2012 to 2020. All types of HAIs as defined by the Centers for Disease Control and Prevention (CDC) were included. Data collection was carried out using NosoTun plug. Univariate and multivariate logistic analysis were used to identify HAI risk factors. Results Overall, 2729 patients were observed in the 9 surveys; the mean age was 48.3 ± 23.3 years and 57.5% were male. We identified 267 infected patients (9.8%) and 296 HAIs (10.8%). Pneumonia/lower respiratory tract infections were the most frequent HAI (24%), followed by urinary tract infection (20.9%).The prevalence of infected patients increased from 10.6% in 2012 to 14.9% in 2020. However, this increase was not statistically significant. The prevalence of HAIs increased significantly from 12.3% to 15.5% ( P =.003). The only decrease involved is bloodstream infections (from 2% to 1%). Independent risk factors significantly associated with HAI were undergoing surgical intervention (aOR = 1.7), the use of antibiotic treatment in previous 6 months (aOR = 1.8), peripheral line (aOR=2), parenteral nutrition (aOR=2.4), urinary tract within 7 days (aOR=2.4), central line (aOR = 6.3), and prosthesis (aOR = 12.8), length of stay (aOR = 3), and the year of the survey. Young age was found as protective factor (aOR = .98). Conclusion Contrary to what was expected, we noticed an increase in the HAIs rates despite the preventive measures put in place to control the COVID-19 pandemic. This was partly explained by the vulnerability of hospitalized patients during this period.

scholarly journals Proposal for the use of echocardiography in bloodstream infections due to different streptococcal species

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sandra Chamat-Hedemand ◽  
Niels Eske Bruun ◽  
Lauge Østergaard ◽  
Magnus Arpi ◽  
Emil Fosbøl ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
High Risk ◽  
Blood Culture ◽  
Positive Blood Culture ◽  
Bloodstream Infections ◽  
Low Risk ◽  
Moderate Risk ◽  
Streptococcal Species ◽  
Very High

Abstract Background Infective endocarditis (IE) is diagnosed in 7–8% of streptococcal bloodstream infections (BSIs), yet it is unclear when to perform transthoracic (TTE) and transoesophageal echocardiography (TOE) according to different streptococcal species. The aim of this sub-study was to propose a flowchart for the use of echocardiography in streptococcal BSIs. Methods In a population-based setup, we investigated all patients admitted with streptococcal BSIs and crosslinked data with nationwide registries to identify comorbidities and concomitant hospitalization with IE. Streptococcal species were divided in four groups based on the crude risk of being diagnosed with IE (low-risk < 3%, moderate-risk 3–10%, high-risk 10–30% and very high-risk > 30%). Based on number of positive blood culture (BC) bottles and IE risk factors (prosthetic valve, previous IE, native valve disease, and cardiac device), we further stratified cases according to probability of concomitant IE diagnosis to create a flowchart suggesting TTE plus TOE (IE > 10%), TTE (IE 3–10%), or “wait & see” (IE < 3%). Results We included 6393 cases with streptococcal BSIs (mean age 68.1 years [SD 16.2], 52.8% men). BSIs with low-risk streptococci (S. pneumoniae, S. pyogenes, S. intermedius) are not initially recommended echocardiography, unless they have ≥3 positive BC bottles and an IE risk factor. Moderate-risk streptococci (S. agalactiae, S. anginosus, S. constellatus, S. dysgalactiae, S. salivarius, S. thermophilus) are guided to “wait & see” strategy if they neither have a risk factor nor ≥3 positive BC bottles, while a TTE is recommended if they have either ≥3 positive BC bottles or a risk factor. Further, a TTE and TOE are recommended if they present with both. High-risk streptococci (S. mitis/oralis, S. parasanguinis, G. adiacens) are directed to a TTE if they neither have a risk factor nor ≥3 positive BC bottles, but to TTE and TOE if they have either ≥3 positive BC bottles or a risk factor. Very high-risk streptococci (S. gordonii, S. gallolyticus, S. mutans, S. sanguinis) are guided directly to TTE and TOE due to a high baseline IE prevalence. Conclusion In addition to the clinical picture, this flowchart based on streptococcal species, number of positive blood culture bottles, and risk factors, can help guide the use of echocardiography in streptococcal bloodstream infections. Since echocardiography results are not available the findings should be confirmed prospectively with the use of systematic echocardiography.

scholarly journals Colour Me Blue: The History and the Biotechnological Potential of Pyocyanin

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 927
Author(s):  
Thiago Gonçalves ◽  
Ulrich Vasconcelos
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibiotic Therapy ◽  
Electric Current ◽  
Antimicrobial Therapy ◽  
Blue Colour ◽  
Current Generation ◽  
Biotechnological Potential ◽  
Avant Garde ◽  
New Horizons ◽  
The Subject

Pyocyanin was the first natural phenazine described. The molecule is synthesized by about 95% of the strains of Pseudomonas aeruginosa. From discovery up to now, pyocyanin has been characterised by a very rich and avant-garde history, which includes its use in antimicrobial therapy, even before the discovery of penicillin opened the era of antibiotic therapy, as well as its use in electric current generation. Exhibiting an exuberant blue colour and being easy to obtain, this pigment is the subject of the present review, aiming to narrate its history as well as to unveil its mechanisms and suggest new horizons for applications in different areas of engineering, biology and biotechnology.

scholarly journals Epidemiology, species distribution, and outcome of nosocomial Candida spp. bloodstream infection in Shanghai: an 11-year retrospective analysis in a tertiary care hospital

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Yan-Jun Zheng ◽  
Ting Xie ◽  
Lin Wu ◽  
Xiao-Ying Liu ◽  
Ling Zhu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Mortality Rate ◽  
Antifungal Therapy ◽  
Species Distribution ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Clinical Severity ◽  
Severe Neutropenia ◽  
Care Hospital ◽  
The Impact

Abstract Background The incidence of Candida bloodstream infections (BSIs), has increased over time. In this study, we aimed to describe the current epidemiology of Candida BSI in a large tertiary care hospital in Shanghai and to determine the risk factors of 28-day mortality and the impact of antifungal therapy on clinical outcomes. Methods All consecutive adult inpatients with Candida BSI at Ruijin Hospital between January 1, 2008, and December 31, 2018, were enrolled. Underlying diseases, clinical severity, species distribution, antifungal therapy, and their impact on the outcomes were analyzed. Results Among the 370 inpatients with 393 consecutive episodes of Candida BSI, the incidence of nosocomial Candida BSI was 0.39 episodes/1000 hospitalized patients. Of the 393 cases, 299 (76.1%) were treated with antifungal therapy (247 and 52 were treated with early appropriate and targeted antifungal therapy, respectively). The overall 28-day mortality rate was 28.5%, which was significantly lower in those who received early appropriate (25.5%) or targeted (23.1%) antifungal therapy than in those who did not (39.4%; P = 0.012 and P = 0.046, respectively). In multivariate Cox regression analysis, age, chronic renal failure, mechanical ventilation, and severe neutropenia were found to be independent risk factors of the 28-day mortality rate. Patients who received antifungal therapy had a lower mortality risk than did those who did not. Conclusions The incidence of Candida BSI has increased steadily in the past 11 years at our tertiary care hospital in Shanghai. Antifungal therapy influenced short-term survival, but no significant difference in mortality was observed between patients who received early appropriate and targeted antifungal therapy.

Impact of empirical antibiotic regimens on mortality in neutropenic patients with bloodstream infection presenting with septic shock

2021 ◽  
Author(s):  
Mariana Chumbita ◽  
Pedro Puerta-Alcalde ◽  
Carlota Gudiol ◽  
Nicole Garcia-Pouton ◽  
Júlia Laporte-Amargós ◽  
...  
Keyword(s):  
Risk Factors ◽  
Septic Shock ◽  
Kidney Injury ◽  
Bloodstream Infections ◽  
Gram Positive ◽  
Gram Negative ◽  
Neutropenic Patients ◽  
Prospective Cohorts ◽  
Independent Risk Factors ◽  
The Impact

Objectives: We analyzed risk factors for mortality in febrile neutropenic patients with bloodstream infections (BSI) presenting with septic shock and assessed the impact of empirical antibiotic regimens. Methods: Multicenter retrospective study (2010-2019) of two prospective cohorts comparing BSI episodes in patients with or without septic shock. Multivariate analysis was performed to identify independent risk factors for mortality in episodes with septic shock. Results: Of 1563 patients with BSI, 257 (16%) presented with septic shock. Those patients with septic shock had higher mortality than those without septic shock (55% vs 15%, p<0.001). Gram-negative bacilli caused 81% of episodes with septic shock; gram-positive cocci, 22%; and Candida species 5%. Inappropriate empirical antibiotic treatment (IEAT) was administered in 17.5% of septic shock episodes. Empirical β-lactam combined with other active antibiotics was associated with the lowest mortality observed. When amikacin was the only active antibiotic, mortality was 90%. Addition of empirical specific gram-positive coverage had no impact on mortality. Mortality was higher when IEAT was administered (76% vs 51%, p=0.002). Age >70 years (OR 2.3, 95% CI 1.2-4.7), IEAT for Candida spp. or gram-negative bacilli (OR 3.8, 1.3-11.1), acute kidney injury (OR 2.6, 1.4-4.9) and amikacin as the only active antibiotic (OR 15.2, 1.7-134.5) were independent risk factors for mortality, while combination of β-lactam and amikacin was protective (OR 0.32, 0.18-0.57). Conclusions: Septic shock in febrile neutropenic patients with BSI is associated with extremely high mortality, especially when IEAT is administered. Combination therapy including an active β-lactam and amikacin results in the best outcomes.

scholarly journals Risk Factors of Catheter-Related Infection in Patients Undergoing Hemodialysis Using Double Lumen Catheter at Dr. M. Djamil Hospital Padang

2021 ◽  
Vol 6 (1) ◽  
pp. 1292-1299
Author(s):  
Muhammad Iqbal ◽  
Raflis Rustam ◽  
Vendry Rivaldy
Keyword(s):  
Risk Factors ◽  
Pseudomonas Aeruginosa ◽  
Clinical Manifestations ◽  
Bloodstream Infections ◽  
Sampling Technique ◽  
Exit Site ◽  
Double Lumen ◽  
Exit Site Infection ◽  
Double Lumen Catheter ◽  
Lumen Catheter

Background. Chronic kidney disease (CKD) is a terminal disease requiring hemodialysis. Hemodialysis requires vascular access using a double lumen catheter (DLC). However, the use of DLC may increase complications mainly infection, either infection of exit site or bloodstream. This study is aimed to seek risk factors contributing to the incidence of central catheter-related infections in CKD patients with DLC undergoing HD at Dr. M. Djamil Hospital, Padang. Methods. This study is a prospective study on patients undergoing HD at Dr. M. Djamil Hospital, Padang. This study using consecutive sampling technique. Data were analyzed using SPSS version 25.0. Results. This study involved 40 CKD patients undergoing HD. Majority of the samples had bloodstream infections (67.5%). Clinical manifestations of purulent secretion, duration of catheter used, and hypoalbuminemia had significant differences in the incidence of DLC infection based on bloodstream infection and exit site infection (p<0.05). The most common bacterial found was Pseudomonas aeruginosa (22.5%) which was sensitive to ceftazidime, cefepime, meropenem, amikacin, gentamicin, ciprofloxacin. Conclusion. Factors contributing to the incidence of DLC-related infections at Dr. M. Djamil Hospital are duration of catheter use and hypoalbuminemia. Pseudomonas aeruginosa is the most common cause of DLC-related infections.

scholarly journals Consumo de alcohol, tabaco, cannabis y otras drogas en la adolescencia: efectos de la familia y el barrio [Use of alcohol, tobacco, cannabis and other drugs in adolescence: Effects of family and neighborhood]

2015 ◽  
Vol 31 (3) ◽  
pp. 1000 ◽  
Author(s):  
María C. Fuentes ◽  
Antonio Alarcón ◽  
Fernando García ◽  
Enrique Gracia
Keyword(s):  
Risk Factors ◽  
High Risk ◽  
Parental Involvement ◽  
Parenting Styles ◽  
Interaction Effect ◽  
Protective Factor ◽  
Intervention Programs ◽  
Educational Strategies ◽  
Neighborhood Risk ◽  
Main Effects

The aim of this study was to analyze the protective or risk factors of parental educational styles for the consumption of alcohol, tobacco, cannabis and other drugs, considering the interaction of parenting styles with the dangerousness of the neighborhood. Based on the responses of 628 adolescents, 369 females (58.8%) and 259 males (41.2%) between 15 and 17 years old (<em>M</em> = 16.03 years old, <em>SD</em> = 0.79 years old), families were classified according to their educational style (authoritative, indulgent, authoritarian or neglectful) and their level of perceived neighborhood risk (high or low). Results showed no interaction effect; however, main effects of educational styles and perceived neighborhood risk were obtained. Adolescents from indulgent families showed the lowest consumption in the substances evaluated, while those from authoritative, authoritarian and neglectful families showed the highest consumption. Moreover, adolescents from high-risk neighborhoods obtained the highest consumption. Indulgent educational style, acting primarily through affection and not imposition, works as a protective factor regardless of the danger in the neighborhood. The importance of encouraging this parental performance in prevention and intervention programs is highlighted, promoting specific educational strategies to improve affection, communication and parental involvement.

Sign in / Sign up

Export Citation Format

Share Document