scholarly journals Carbapenem-resistant Enterobacteriaceae carriage risk for parameterization of a regional healthcare network agent-based model

2020 ◽  
Vol 41 (S1) ◽  
pp. s148-s149
Author(s):  
Sarah Rhea ◽  
Lei Li ◽  
Pooja Iyer ◽  
Lauren DiBiase ◽  
Kasey Jones ◽  
...  

Background: Carbapenem-resistant Enterobacteriaceae (CRE) are increasingly common in the United States and have the potential to spread widely across healthcare networks. Only a fraction of patients with CRE carriage (ie, infection or colonization) are identified by clinical cultures. Interventions to reduce CRE transmission can be explored with agent-based models (ABMs) comprised of unique agents (eg, patients) represented by a synthetic population or model-generated representation of the population. We used electronic health record data to determine CRE carriage risk, and we discuss how these results can inform CRE transmission parameters for hospitalized agents in a regional healthcare network ABM. Methods: We reviewed the laboratory data of patients admitted during July 1, 2016−June 30, 2017, to any of 7 short-term acute-care hospitals of a regional healthcare network in North Carolina (N = 118,022 admissions) to find clinically detected cases of CRE carriage. A case was defined as the first occurrence of Enterobacter spp, Escherichia coli, or Klebsiella spp resistant to any carbapenem isolated from a clinical specimen in an admitted patient. We used Poisson regression to estimate clinically detected CRE carriage risk according to variables common to data from both the electronic health records and the ABM synthetic population, including patient demographics, systemic antibiotic administration, intensive care unit stay, comorbidities, length of stay, and admitting hospital size. Results: We identified 58 (0.05%) cases of CRE carriage among all admissions. Among these cases, 30 (52%) were ≥65 years of age and 37 (64%) were female. During their admission, 47 cases (81%) were administered systemic antibiotics and 18 cases (31%) had an intensive care unit stay. Patients administered systemic antibiotics and those with an intensive care unit stay had CRE carriage risk 6.5 times (95% CI, 3.4–12.5) and 4.9 times (95% CI, 2.8–8.5) higher, respectively, than patients without these exposures (Fig. 1). Patients ≥50 years of age and those with a higher Elixhauser comorbidity index score and with longer length of stay also had increased CRE carriage risk. Conclusions: Among admissions in our dataset, CRE carriage risk was associated with systemic antibiotic exposure, intensive care unit stay, higher Elixhauser comorbidity index score, and longer length of stay. We will use these risk estimates in the ABM to inform agents’ CRE carriage status upon hospital admission and the CRE transmission parameters for short-term acute-care hospitals. We will explore CRE transmission interventions in the parameterized regional healthcare network ABM and assess the impact of CRE carriage underestimation.Funding: This work was supported by Centers for Disease Control and Prevention (CDC) Cooperative Agreement number U01CK000527. The conclusions, findings, and opinions expressed do not necessarily reflect the official position of CDC.Disclosures: None

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Jason M. Pogue ◽  
Yun Zhou ◽  
Hemanth Kanakamedala ◽  
Bin Cai

Abstract Background Carbapenem-resistant (CR) Acinetobacter baumannii is a concerning pathogen in the USA and worldwide. Methods To assess the comparative burden of CR vs carbapenem-susceptible (CS) A. baumannii, this retrospective cohort study analyzed data from adult patients in 250 US hospitals from the Premier HealthCare Database (2014–2019). The outcomes analyzed included hospital length of stay (LOS), intensive care unit (ICU) utilization, discharge status, in-hospital mortality, readmission rates and hospital charges. Logistic regression was used for univariate and multivariable assessment of the independent relationship between relevant covariates, with a focus on CR status, and in-hospital mortality. Results 2047 Patients with CR and 3476 patients with CS A. baumannii infections were included. CR A. baumannii was more commonly isolated in respiratory tract infections (CR 40.7% and CS 27.0%, P < 0.01), whereas CS A. baumannii was more frequently associated with bloodstream infections (CS 16.7% and CR 8.6%, P < 0.01). Patients with CR A. baumannii infections had higher in-hospital (CR 16.4% vs CS 10.0%; P < 0.01) and 30-day (CR 32.2% vs CS 21.6%; P < 0.01) mortality compared to those with CS infections. After adjusting for age, sex, admission source, infection site, comorbidities, and treatment with in vitro active antibiotics within 72 h, carbapenem resistance was independently associated with increased mortality (adjusted odds ratio 1.42 [95% confidence interval 1.15; 1.75], P < 0.01). CR infections were also associated with increases in hospital length of stay (CR 11 days vs CS 9 days; P < 0.01), rate of intensive care unit utilization (CR 62.3% vs CS 45.1%; P < 0.01), rate of readmission with A. baumannii infections (CR 17.8% vs CS 4.0%; P < 0.01) and hospital charges. Conclusions These data suggest that the burden of illness is significantly greater for patients with CR A. baumannii infections and are at higher risk of mortality compared with CS infections in US hospitals.


2020 ◽  
Vol 9 (9) ◽  
pp. 627-637
Author(s):  
Zahra Bagheri ◽  
Zohreh Labbani-Motlagh ◽  
Mahtabalsadat Mirjalili ◽  
Iman Karimzadeh ◽  
Hossein Khalili

Cytopenia is common complication in critically ill patients. Aim: Incidence and pattern of different types of cytopenia as well as its impact on mortality and length of stay in critically ill patients were evaluated. Methods: Critically ill patients with any kind of cytopenia for more than 2 days were evaluated. Results: Anemia was the most common type of cytopenia in the patients (99.14%), followed by lymphocytopenia (32.17%), thrombocytopenia (27.82%), and leukopenia (19.13%). Mortality rate was significantly higher in patients with anemia (p < 0.0001), thrombocytopenia (p < 0.0001), leukopenia (p < 0.0001), neutropenia (p = 0.004), lymphopenia (p = 0.002) and pancytopenia (p < 0.0001). Higher duration of anemia, lymphopenia and thrombocytopenia were associated with longer intensive care unit stay (p < 0.0001, p < 0.0001 and p < 0.001, respectively). Conclusion: Among all assessed variables, incidence of thrombocytopenia could independently predict the mortality.


2019 ◽  
Vol 75 (2) ◽  
pp. 326-332 ◽  
Author(s):  
Christine Nguyen ◽  
Brian Downer ◽  
Lin-Na Chou ◽  
Yong-Fang Kuo ◽  
Mukaila Raji

Abstract Background Little is known about the patterns of end-of-life health care for older Mexican Americans with or without a diagnosis of Alzheimer’s disease and related dementias (ADRD). Our objective was to investigate the frequency of acute hospital admissions, intensive care unit use, and ventilator use during the last 30 days of life for deceased older Mexican American Medicare beneficiaries with and without an ADRD diagnosis. Methods We used Medicare claims data linked with survey information from 1,090 participants (mean age of death 85.1 years) of the Hispanic Established Populations for the Epidemiologic Studies of the Elderly. Multivariable logistic regression models were used to estimate the odds for hospitalization, intensive care unit use, and ventilator use in the last 30 days of life for decedents with ADRD than those without ADRD. Generalized linear models were used to estimate the risk ratio (RR) for length of stay in hospital. Results Within the last 30 days of life, 64.5% decedents had an acute hospitalization (59.1% ADRD, 68.3% no ADRD), 33.9% had an intensive care unit stay (31.3% ADRD, 35.8% no ADRD), and 17.2% used a ventilator (14.9% ADRD, 18.8% no ADRD). ADRD was associated with significantly lower hospitalizations (odds ratio [OR] = 0.67, 95% confidence interval [CI] = 0.50–0.89) and shorter length of stay in hospital (RR = 0.77, 95% CI = 0.65–0.90). Conclusion Hospitalization, intensive care unit stay, and ventilator use are common at the end of life for older Mexican Americans. The lower hospitalization and shorter length of stay in hospital of decedents with ADRD indicate a modest reduction in acute care use. Future research should investigate the impact of end-of-life planning on acute-care use and quality of life in terminally ill Mexican American older adults.


2018 ◽  
Vol 19 (4) ◽  
pp. 305-312 ◽  
Author(s):  
Shailesh Bihari ◽  
Shivesh Prakash ◽  
Paul Hakendorf ◽  
Christopher MacBryde Horwood ◽  
Steve Tarasenko ◽  
...  

Objective Patients undergoing tracheostomy represent a unique cohort, as often they have prolonged hospital stay, require multi-disciplinary, resource-intensive care, and may have poor outcomes. Currently, there is a lack of data around overall healthcare cost for these patients and their outcomes in terms of morbidity and mortality. The objective of the study was to estimate healthcare costs and outcomes associated in tracheostomy patients at a tertiary level hospital in South Australia. Design Retrospective review of prospectively collected data in patients who underwent tracheostomy between July 2009 and May 2015. Methods Overall healthcare-associated costs, length of mechanical ventilation, length of intensive care unit stay, and mortality rates were assessed. Results A total of 454 patients with tracheostomies were examined. Majority of the tracheostomies (n = 386 (85%)) were performed in intensive care unit patients, predominantly using bedside percutaneous approach (85%). The median length of hospital stay was 44 (29–63) days and the in-hospital mortality rate was 20%. Overall total cost of managing a patient with tracheostomy was median $192,184 (inter-quartile range $122560–$295553); mean 225,200 (range $5942–$1046675) Australian dollars. There were no statistically significant differences in any of the measured outcomes, including costs, between patients who underwent percutaneous versus surgical tracheostomy and patients who underwent early versus late tracheostomy in their intensive care unit stay. Factors that predicted (adjusted R2 = 0.53) the cost per patient were intensive care unit length of stay and hospital length of stay. Conclusion Hospitalised patients undergoing tracheostomy experience high morbidity and mortality and typically experience highly resource-intensive and costly healthcare.


2013 ◽  
Vol 61 (S 01) ◽  
Author(s):  
J Schöttler ◽  
C Grothusen ◽  
T Attmann ◽  
C Friedrich ◽  
S Freitag-Wolf ◽  
...  

2013 ◽  
Vol 61 (S 01) ◽  
Author(s):  
C Schimmer ◽  
K Hamouda ◽  
M Özkur ◽  
SP Sommer ◽  
I Aleksic ◽  
...  

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