scholarly journals Burden of bloodstream infection in older persons: a population‐based study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Kevin B. Laupland ◽  
Kelsey Pasquill ◽  
Lisa Steele ◽  
Elizabeth C Parfitt
Keyword(s):  
Bloodstream Infection ◽  
Older Persons ◽  
Case Fatality ◽  
Bloodstream Infections ◽  
Population Based ◽  
Annual Incidence ◽  
Increased Risk ◽  
Co Morbidity ◽  
Aging Populations ◽  
Healthcare Associated

Abstract Background Advancing age is a major risk factor for developing and dying from bloodstream infections (BSI). However, there is a paucity of population-based studies investigating the epidemiology of BSI in older persons. Objective To define the incidence, clinical determinants, and risk factors for death among those aged 65 years and older with BSI. Methods Population-based surveillance was conducted in the western interior of British Columbia, Canada, between April 1, 2010 and March 31, 2020. Chart reviews were conducted for clinical details and all cause case-fatality was established at 30-days follow-up. Results A total of 1854 incident BSI were identified among 1657 individuals aged 65 and older for an annual incidence of 533.9 per 100,000 population; the incidence for those aged 65-74, 75-84, and ≥85 years was 375.3, 678.9, and 1046.6 per 100,000 population, respectively. Males were at significantly increased risk as compared to females (incidence rate ratio, IRR 1.44; 95% confidence interval, CI, 1.32-1.59; p<0.0001). The crude annual incidence increased by 50% during the study. However, this was related to shift in population demographics with no increase evident following age- and sex-standardization. Older patients were more likely to have healthcare-associated infections and genitourinary sources and less likely to have bone/joint or soft tissue infections. The proportion of patients with underlying congestive heart failure, stroke, and dementia increased, whereas diabetes and liver disease decreased with older age. The overall 30-day all cause case-fatality rate was 22.0% (364/1657). After adjustment for clinical focus, onset of infection, etiology, and co-morbidity in a logistic model, those aged 75-84 years (odds ratio, OR, 1.66; 95% CI, 1.25-2.21) and ≥ 85 years (OR, 1.98; 95% CI, 1.41-2.77) were at significantly increased risk for death as compared to those aged 65-74 years. Conclusion Bloodstream infection is common in older persons and is a major cause of death. Countries with aging populations worldwide should expect an increase burden associated with BSI in the coming years.

scholarly journals Community-Onset Bloodstream Infection during the ‘After Hours’ Is not Associated with an increased Risk for Death

2012 ◽  
Vol 23 (4) ◽  
pp. 170-172 ◽  
Author(s):  
Kevin B Laupland ◽  
Pamela C Kibsey ◽  
John C Galbraith
Keyword(s):  
Bloodstream Infection ◽  
Case Fatality ◽  
Bloodstream Infections ◽  
Multivariable Logistic Regression Model ◽  
Risk Of Death ◽  
Time Period ◽  
Increased Risk ◽  
Day Of The Week ◽  
After Hours ◽  
Community Onset

BACKGROUND/OBJECTIVE: Patients admitted to hospital during the ‘after hours’ (weekends and evenings) may be at increased risk for adverse outcome. The objective of the present study was to assess whether community-onset bloodstream infections presenting in the after hours are associated with death.METHODS: All patients in the Victoria area of British Columbia, who had first admissions with community-onset bloodstream infections between 1998 and 2005 were included. The day of admission to hospital, the day and time of culture draw, and all-cause, in-hospital mortality were ascertained.RESULTS: A total of 2108 patients were studied. Twenty-six per cent of patients were admitted on a weekend. Blood cultures were drawn on a weekend in 27% of cases and, in 43%, 33%, and 25% of cases, cultures were drawn during the day (08:00 to 17:59), the evening (18:00 to 22:59) and night (23:00 to 07:59), respectively. More than two-thirds (69%) of index cultures were drawn during the after hours (any time Saturday or Sunday and weekdays 18:00 to 07:59). The overall in-hospital case fatality rate was 13%. No difference in mortality was observed in relation to the day of the week of admission or time period of sampling. After-hours sampling was not associated with mortality in a multivariable logistic regression model examining factors associated with death.CONCLUSION: Presentation with community-onset, bloodstream infection during the after hours does not increase the risk of death.

scholarly journals The Role of FER rs4957796 in the Risk of Developing and Dying from a Bloodstream Infection: A 23-Year Follow-up of the Population-based Nord-Trøndelag Health Study

2020 ◽  
Author(s):  
Tormod Rogne ◽  
Jan Kristian Damås ◽  
Helene Marie Flatby ◽  
Bjørn Olav Åsvold ◽  
Andrew Thomas DeWan ◽  
...  
Keyword(s):  
Bloodstream Infection ◽  
Case Fatality ◽  
Population Based ◽  
Health Study ◽  
Total Study Population ◽  
Diagnosis Codes ◽  
Increased Risk ◽  
Incidence And Mortality ◽  
Patients At Risk

Abstract Background Bloodstream infection and sepsis are major causes of health loss worldwide, and it is important to identify patients at risk of developing and dying from these conditions. The single-nucleotide polymorphism most strongly associated with sepsis mortality is FER rs4957796. However, it is not known how this variant is associated with bloodstream infection incidence and mortality. Methods We used prospective data from 1995–2017 from the population-based HUNT Study. Genotypes were ascertained from blood samples, and additional genotypes were imputed. Information on bloodstream infection and diagnosis codes at hospitalization were collected through record linkage with all hospitals in the area. Results A total of 69 294 patients were included. Patients with the rs4957796 CC genotype had an increased risk of developing a bloodstream infection compared with the TT genotype (hazard ratio [HR], 1.20; 95% confidence interval [CI], 1.00–1.43). However, there was a protective additive effect of the C allele in terms of mortality in the total study population (HR, 0.77; 95% CI, .64–.92 per copy of the C allele) and among bloodstream infection patients (odds ratio, 0.70; 95% CI, .58–.85 per copy of the C allele). The results did not appear to be affected by selection bias. Conclusions The rs4957796 CC genotype was associated with an increased risk of contracting a bloodstream infection but with a reduced risk of dying from one. The latter finding is in line with studies of sepsis case fatality, while the former expands our understanding of the immunoregulatory role of this polymorphism.

scholarly journals Clinical Outcomes and Risk Factors for Tunneled Hemodialysis Catheter-Related Bloodstream Infections

2020 ◽  
Vol 7 (6) ◽  
Author(s):  
Kylie Martin ◽  
Yves S Poy Lorenzo ◽  
Po Yee Mia Leung ◽  
Sheri Chung ◽  
Emmet O’flaherty ◽  
...  
Keyword(s):  
Risk Factors ◽  
Bloodstream Infection ◽  
Jugular Vein ◽  
Insertion Site ◽  
Bloodstream Infections ◽  
Left Internal Jugular Vein ◽  
Hemodialysis Catheter ◽  
Increased Risk ◽  
Catheter Related Bloodstream Infection ◽  
Reduced Risk

Abstract Diabetes and left internal jugular vein insertion site were significantly associated with increased risk of a catheter-related bloodstream infection from a tunneled hemodialysis catheter. Ex-smoker status was significantly associated with reduced risk.

scholarly journals 701. Blood Stream Infection And Risk Of Endocarditis Following Cardiac Valve Repair: A Population-Based Study

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S401-S401
Author(s):  
Jack McHugh ◽  
Talha Khawaja ◽  
Larry M Baddour ◽  
Larry M Baddour ◽  
Juan Crestanello ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Stream Infection ◽  
Subsequent Development ◽  
Bloodstream Infections ◽  
Population Based ◽  
Cardiac Valve ◽  
Valve Repair ◽  
Population Based Study ◽  
Increased Risk ◽  
One Year

Abstract Background Bloodstream infections (BSIs) confer an increased risk of infective endocarditis (IE) in patients with a prosthetic cardiac valve. This relationship is less well established in patients undergoing valve repair. We conducted a retrospective population-based study to determine the incidence of BSIs following valve repair and identify risk factors associated with the development of IE. Methods The Rochester Epidemiology Project (REP) data linkage system was used to identify all persons who underwent valve repair in a 7-county region in Southeastern Minnesota between January 1, 2010 and December 31, 2018. Medical records were screened for the development of a BSI from time of procedure until May 15, 2020. Patients were classified as having BSI only, BSI with IE at outset, or BSI with subsequent development of new IE. IE at outset was defined as cases where IE was diagnosed at the time of initial positive blood culture. Results A total of 387 patients underwent valve repair surgery. A total of 31 (8%) patients subsequently developed a BSI, 4% within one year of surgery. Seventeen patients underwent mitral repair with annuloplasty, 9 underwent tricuspid annuloplasty, and 5 had concurrent repairs. Median time to the development of BSI was 338 days. Of the 31 patients with BSI, 4 (13%) had BSI with IE at outset. No patients developed IE subsequent to BSI, Enterococcus spp. was responsible for 3 cases of IE, and MSSA for 1. All cases occurred within one year of surgery. Given the low incidence, statistical analysis of associated risk factors for IE was not feasible. All patients with BSI and IE at outset, however, died by the end of the study period, versus 11/27 in the BSI only group. Conclusion Incidence of BSIs was higher in patients undergoing cardiac valve repair than in the general population. The incidence of IE with a BSI was 13%, which is lower than what has been previously published. It is notable that all cases of IE occurred within one year of surgery. Recognizing that endothelialization of device surfaces occurs, it is tempting to speculate that the risk of IE may be time dependent and may decline over time. Subsequent investigation of this theory is underway. Disclosures Larry M. Baddour, MD, Boston Scientific (Consultant)

scholarly journals Occurrence and determinants of Klebsiella species bloodstream infection in the western interior of British Columbia, Canada

2019 ◽  
Author(s):  
Connor B. Reid ◽  
Lisa Steele ◽  
Kelsey Pasquill ◽  
Elizabeth C. Parfitt ◽  
Kevin Laupland
Keyword(s):  
British Columbia ◽  
Bloodstream Infection ◽  
Burden Of Illness ◽  
Case Fatality ◽  
Population Based ◽  
Hospital Length ◽  
Interquartile Range ◽  
Chronic Obstructive ◽  
Klebsiella Species ◽  
Obstructive Pulmonary Disease

Abstract BACKGROUND: Klebsiella species are among the most common causes of bloodstream infection (BSI). However, few studies have evaluated their epidemiology in non-selected populations. The objective was to define the incidence of, risk factors for, and outcomes from Klebsiella species BSI among residents of the western interior of British Columbia, Canada. METHODS: Population-based surveillance was conducted between April 1, 2010 and March 31, 2017. RESULTS: 151 episodes were identified for an incidence of 12.1 per 100,000 population per year; the incidences of K. pneumoniae and K. oxytoca were 9.1 and 2.9 per 100,000 per year, respectively. Overall 24 (16%) were hospital-onset, 90 (60%) were healthcare-associated, and 37 (25%) were community-associated. The median patient age was 71.4 (interquartile range, 58.8-80.9) years and 88 (58%) cases were males. Episodes were uncommon among patients aged 40 years old and no cases were observed among those aged 10 years. A number of co-morbid medical illnesses were identified as significant risks and included (incidence rate ratio; 95% confidence interval) cerebrovascular accident (5.9; 3.3-9.9), renal disease 4.3; 2.5-7.0), cancer (3.8; 2.6-5.5), congestive heart failure (3.5; 1.6-6.6), dementia (2.9; 1.5-5.2), diabetes mellitus (2.6; 1.7-3.9), and chronic obstructive pulmonary disease (2.3; 1.5-3.5). Of the 141 (93%) patients admitted to hospital, the median hospital length stay was 8 days (interquartile range, 4-17). The in-hospital and 30-day all cause case-fatality rates were 24/141 (17%) and 27/151 (18%), respectively. CONCLUSIONS: Klebsiella species BSI is associated with a significant burden of illness particularly among those with chronic co-morbid illnesses.

scholarly journals Everybody Nose: Molecular and Clinical Characteristics of Nasal Colonization During Active Methicillin-Resistant Staphylococcus Aureus Bloodstream Infection

2021 ◽  
Author(s):  
Erika Reategui Schwarz ◽  
Adriana van de Guchte ◽  
Amy C. Dupper ◽  
Ana Berbel Caban ◽  
Devika Nadkarni ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Bloodstream Infection ◽  
Bloodstream Infections ◽  
Invasive Disease ◽  
Nasal Colonization ◽  
Healthcare Associated Infections ◽  
Staphylococcal Protein A ◽  
Record System ◽  
Methicillin Resistant ◽  
Healthcare Associated

Abstract Background. Healthcare-associated infections pose a potentially fatal threat to patients worldwide and Staphylococcus aureus is one of the most common causes of healthcare-associated infections. S. aureus is a common commensal pathogen and a frequent cause of bacteremia, with studies demonstrating that nasal and blood isolates from single patients match more than 80% of the time. Here we report on a contemporary collection of colonizing isolates from those with methicillin-resistant S. aureus (MRSA) bloodstream infections to evaluate the diversity within hosts, and detail the clinical features associated with concomitant nasal colonization.Methods. Swabs of the bilateral anterior nares were obtained from patients diagnosed with MRSA bacteremia. A single colony culture from the blood and an average of 6 colonies from the nares were evaluated for MRSA growth. For the nares cultures, we typed multiple isolates for staphylococcal protein A (spa) and derived the clonal complexes. Demographic and clinical data were obtained retrospectively from the electronic medical record system and analysed using univariate and multivariable regression models.Results. Over an 11-month period, 68 patients were diagnosed with MRSA bloodstream infection, 53 were swabbed, and 37 (70%) were colonized with MRSA in the anterior nares. We performed molecular typing on 210 nasal colonies. Spa types and clonal complexes found in the blood were also detected in the nares in 95% of the cases. We also found that 11% of patients carried more than one clone of MRSA in the nares. Male sex and history of prior hospitalization within the past 90 days increased odds for MRSA colonization. Conclusion. The molecular epidemiological landscape of colonization in the setting of invasive disease is diverse and defining the interplay between colonization and invasive disease is critical to combating invasive MRSA disease.

scholarly journals Epidemiology and outcome of Gram-negative bloodstream infection in children: a population-based study

2010 ◽  
Vol 139 (5) ◽  
pp. 791-796 ◽  
Author(s):  
M. N. AL-HASAN ◽  
W. C. HUSKINS ◽  
B. D. LAHR ◽  
J. E. ECKEL-PASSOW ◽  
L. M. BADDOUR
Keyword(s):  
Incidence Rate ◽  
Bloodstream Infection ◽  
Population Based ◽  
Medical Conditions ◽  
Gram Negative ◽  
Source Of Infection ◽  
Kaplan Meier ◽  
Adjusted Incidence Rate ◽  
Cox Proportional Hazard Regression ◽  
Healthcare Associated

SUMMARYPopulation-based studies of Gram-negative bloodstream infection (BSI) in children are lacking. Therefore, we performed this population-based investigation in Olmsted County, Minnesota, to determine the incidence rate, site of acquisition, and outcome of Gram-negative BSI in children aged ⩽18 years. We used Kaplan–Meier method and Cox proportional hazard regression for mortality analysis. We identified 56 unique children with Gram-negative BSI during the past decade. The gender-adjusted incidence rate of Gram-negative BSI per 100 000 person-years was 129·7 [95% confidence interval (CI) 77·8–181·6]) in infants, with a sharp decline to 14·6 (95% CI 6·0–23·2) and 7·6 (95% CI 4·3–10·9) in children aged 1–4 and 5–18 years, respectively. The urinary tract was the most commonly identified source of infection (34%) and Escherichia coli was the most common pathogen isolated (38%). Over two-thirds (68%) of children had underlying medical conditions that predisposed to Gram-negative BSI. The overall 28-day and 1-year all-cause mortality rates were 11% (95% CI 3–18) and 18% (95% CI 8–28), respectively. Younger age and number of underlying medical conditions were associated with 28-day and 1-year mortality, respectively. Nosocomial or healthcare-associated acquisition was associated with both 28-day and 1-year mortality.

scholarly journals 227. Epidemiology of bloodstream infections in Veterans Health Administration, 2010-2020

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S221-S222
Author(s):  
Aditya Sharma ◽  
Patricia Schirmer ◽  
Cynthia A Lucero-Obusan ◽  
Gina Oda ◽  
Mark Holodniy
Keyword(s):  
Positive Culture ◽  
Bloodstream Infections ◽  
Veterans Health Administration ◽  
Annual Incidence ◽  
Veterans Health ◽  
Health Administration ◽  
E Coli ◽  
Extended Spectrum ◽  
Healthcare Associated ◽  
Community Onset

Abstract Background National trends of bloodstream infections (BSI), their etiologies, and prevalence of resistance are not well described. We reviewed BSI during 2010-2020 in the Veterans Health Administration (VHA), the largest healthcare system in the United States. Methods Demographic, microbiological, and healthcare exposure data were extracted from VHA databases. A case was defined as isolation of a microbe from blood specimens collected from a hospitalized person; common commensals required matching organisms isolated within two consecutive days. The first organism-specific episode within a 14-day period was counted. Staphylococcus, Enterococcus, S. pneumoniae, and gram-negative isolates were assessed for resistance to methicillin, vancomycin, any antimicrobial, and extended-spectrum cephalosporins or carbapenems, respectively. Cases were classified as community acquired (CA-), healthcare-associated community onset (HCO-), and hospital onset (HO-). Trends were estimated by generalized linear mixed models. Results During 2010-2020, incidence of CA-BSI decreased from 42.2 to 27.6 per 100,000 users, HCO-BSI decreased from 63.7 to 40.7 per 100,000 users, and HO-BSI decreased from 28.2 to 16.4 per 100,000 users (Figure 1A). S. aureus and E. coli were the most common in CA-BSI and HCO-BSI; S. aureus and Enterococcus were the most common in HO-BSI; the prevalence of E. coli increased in BSI across classifications (Figure 1B). Incidence of BSI caused by resistant Pseudomonadales and Enterococcus decreased by more than 15% annually; annual incidence of BSI caused by other organisms decreased by less than 10% or remained unchanged with the exception of extended-spectrum cephalosporin resistant E. coli, which increased 6% annually (Figure 2). HO-BSI were more resistant than CA-BSI and HCO-BSI across organisms; resistance among E. coli and S. pneumoniae BSI increased across classifications (Figure 3). Figure 1. Trends of bloodstream infections by organism in Veterans Health Administration, 2010-2020. (A) Incidence per 100,000 users. (B) Percentage of incident BSI by organism. Trends are adjusted for distributions of age, gender, and number of users, in addition to accounting for clustering by county and facility. Community acquired: positive culture collected less than 4 days after hospitalization from a person without previous healthcare exposures. Healthcare-associated community onset: positive culture collected less than 4 days after hospitalization from a person with previous healthcare exposures. Hospital onset: positive culture collected 4 or more days after hospitalization. Figure 2. Percentage change in annual incidence of bloodstream infections by organism in Veterans Health Administration, 2010-2020. Dots represent point estimates and horizontal bars represent 95% confidence intervals. Figure 3. Trends in prevalence of resistance among organisms causing bloodstream infection by epidemiological classification in Veterans Health Administration, 2010-2020 Trends are adjusted for distributions of age, gender, and number of users, in addition to accounting for clustering by county and facility. Community acquired: positive culture collected less than 4 days after hospitalization from a person without previous healthcare exposures. Healthcare-associated community onset: positive culture collected less than 4 days after hospitalization from a person with previous healthcare exposures. Hospital onset: positive culture collected 4 or more days after hospitalization. Conclusion BSI incidence decreased during 2010-2020 across classifications. CO-BSI and HCO-BSI occurred more frequently and were less resistant than HO-BSI. S. pneumoniae and E. coli BSIs became more resistant over time. Increasing incidence of BSI caused by E. coli resistant to extended-spectrum cephalosporins warrants urgent investigation. Disclosures All Authors: No reported disclosures

Healthcare-associated bloodstream infection trends under a provincial surveillance program

2019 ◽  
Vol 40 (3) ◽  
pp. 307-313
Author(s):  
Iman Fakih ◽  
Élise Fortin ◽  
Marc-André Smith ◽  
Alex Carignan ◽  
Claude Tremblay ◽  
...  
Keyword(s):  
Bloodstream Infection ◽  
Bloodstream Infections ◽  
Surveillance Program ◽  
First Year ◽  
Period Effect ◽  
Surveillance Period ◽  
Year Effect ◽  
Rate Ratios ◽  
Tract Infections ◽  
Healthcare Associated

AbstractObjective:BACTOT, Quebec’s healthcare-associated bloodstream infection (HABSI) surveillance program has been operating since 2007. In this study, we evaluated the changes in HABSI rates across 10 years of BACTOT surveillance under a Bayesian framework.Design:A retrospective, cohort study of eligible hospitals having participated in BACTOT for at least 3 years, regardless of their entry date. Multilevel Poisson regressions were fitted independently for cases of HABSI, catheter-associated bloodstream infections (CA-BSIs), non–catheter-associated primary BSIs (NCA-BSIs), and BSIs secondary to urinary tract infections (BSI-UTIs) as the outcome and log of patient days as the offset. The log of the mean Poisson rate was decomposed as the sum of a surveillance year effect, period effect, and hospital effect. The main estimate of interest was the cohort-level rate in years 2–10 of surveillance relative to year 1.Results:Overall, 17,479 cases and 33,029,870 patient days were recorded for the cohort of 77 hospitals. The pooled 10-year HABSI rate was 5.20 per 10,000 patient days (95% CI, 5.12–5.28). For HABSI, CA-BSI, and BSI-UTI, there was no difference between the estimated posterior rates of years 2–10 compared to year 1. The posterior means of the NCA-BSI rate ratios increased from the seventh year until the tenth year, when the rate was 29% (95% confidence interval, 1%–89%) higher than the first year rate.Conclusions:HABSI rates and those of the most frequent subtypes remained stable over the surveillance period. To achieve reductions in incidence, we recommend that more effort be expended in active interventions against HABSI alongside surveillance.

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