scholarly journals Clinical Reasoning of Infectious Diseases Physicians Behind the Use or Nonuse of Transesophageal Echocardiography in Staphylococcus aureus Bacteremia

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
Heather Young ◽  
Bryan C. Knepper ◽  
Connie S. Price ◽  
Susan Heard ◽  
Timothy C. Jenkins

Abstract In this prospective cohort with Staphylococcus aureus bacteremia, transesophageal echocardiography (TEE) was performed in 24% of cases. Consulting Infectious Diseases physicians most frequently cited low suspicion for endocarditis due to rapid clearance of blood cultures and the presence of a secondary focus requiring an extended treatment duration as reasons for foregoing TEE.

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S145-S145
Author(s):  
Khushali Jhaveri ◽  
Sheena Ramdeen

Abstract Background Staphylococcus aureus bacteremia (SAB) remains the leading cause of bloodstream infections and is associated with 20–40% mortality. Past studies demonstrated that Infectious Diseases (ID) consultation is associated with better adherence to quality of care indicators (QCIs), including follow-up blood cultures, echocardiography, early source control, and appropriate choice and duration of antibiotics. A 2014 quality improvement project at Medstar Washington Hospital Center (MWHC) by Narsana et al. showed significantly better adherence to SAB QCIs among patients with ID consults and a non-significant trend towards lower mortality. In 2015, MWHC instituted a policy advocating ID consultation for all SAB patients, and active surveillance was performed by the ID Section to offer prompt consults prospectively. Our study aimed to assess the impact of this policy and the proactively offered ID consults on adherence to SAB QCIs and mortality rates amongst patients with SAB with and without ID consults. Methods We retrospectively reviewed 557 patients diagnosed with SAB between July 1st, 2015 - June 30th, 2018. Data included follow-up blood cultures, echocardiography, presence of a focal source of infection, use of appropriate antibiotics, measurement of vancomycin levels, duration of therapy, death during hospitalization, and presence of an ID consultation. Chi-Square and Fisher exact tests, and t-test and Wilcoxon rank sum test were used to analyze categorical and continuous variables, respectively. Results A total of 513 patients were included in the analysis, 88% (n=453) of whom had ID consultations. Patients with ID consultations were more likely to have a focal source of infection (84% vs. 50%, p < 0.0001), echocardiography (97% vs. 56%, p < 0.0001), use of a beta-lactam antibiotic for methicillin-susceptible S. aureus (90% vs 65%, p < 0.0001), and a longer duration of therapy (33 vs 9 days, p< 0.0001). Mortality was lower among patients with ID consults (16% vs. 23%, p=0.1495), but the difference was not statistically significant. Table 1 Conclusion Our study demonstrates that ID consultation is associated with better adherence to SAB QCIs, with a trend towards lower mortality. Hospital systems should support mandatory ID consultation for patients with Staphylococcus aureus bacteremia. Disclosures All Authors: No reported disclosures


2018 ◽  
Vol 5 (5) ◽  
Author(s):  
Jesse D Sutton ◽  
Sena Sayood ◽  
Emily S Spivak

Abstract The Infectious Diseases Society of America infection-specific guidelines provide limited guidance on the management of focal infections complicated by secondary bacteremias. We address the following 3 commonly encountered questions and management considerations regarding uncomplicated bacteremia not due to Staphylococcus aureus: the role and choice of oral antibiotics focusing on oral beta-lactams, the shortest effective duration of therapy, and the role of repeat blood cultures.


Author(s):  
Louise Thorlacius-Ussing ◽  
Håkon Sandholdt ◽  
Jette Nissen ◽  
Jon Rasmussen ◽  
Robert Skov ◽  
...  

Abstract Background The recommended duration of antimicrobial treatment for Staphylococcus aureus bacteremia (SAB) is a minimum of 14 days. We compared the clinical outcomes of patients receiving short-course (SC; 6–10 days), or prolonged-course (PC; 11–16 days) antibiotic therapy for low-risk methicillin-susceptible SAB (MS-SAB). Methods Adults with MS-SAB in 1995–2018 were included from 3 independent retrospective cohorts. Logistic regression models fitted with inverse probability of treatment weighting were used to assess the association between the primary outcome of 90-day mortality and treatment duration for the individual cohorts as well as a pooled cohort analysis. Results A total of 645, 219, and 141 patients with low-risk MS-SAB were included from cohorts I, II, and III. Median treatment duration in the 3 SC groups was 8 days (interquartile range [IQR], 7–10), 9 days (IQR, 8–10), and 8 days (IQR, 7–10). In the PC groups, patients received a median therapy of 14 days (IQR, 13–15), 14 days (IQR, 13–15), and 13 days (IQR, 12–15). No significant differences in 90-day mortality were observed between the SC and PC group in cohort I (odds ratio [OR], 0.85 [95% confidence interval {CI}, .49–1.41]), cohort II (OR, 1.24 [95% CI, .60–2.62]), or cohort III (OR, 1.15 [95% CI, .24–4.01]). This result was consistent in the pooled cohort analysis (OR, 1.05 [95% CI, .71–1.51]). Furthermore, duration of therapy was not associated with the risk of relapse. Conclusions In patients with low-risk MS-SAB, shorter courses of antimicrobial therapy yielded similar clinical outcomes as longer courses of therapy.


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.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S109-S110
Author(s):  
Charles Hoffmann ◽  
Gordon Watkins ◽  
Patrick DeSimone ◽  
Peter Hallisey ◽  
David Hutchinson ◽  
...  

Abstract Background Staphylococcus aureus bacteremia (SAB) is associated with 30-day all-cause mortality rates approaching 20–30%. The purpose of this case–control study was to evaluate risk factors for 30-day mortality in patients with SAB at a community hospital. Methods As part of an antimicrobial stewardship program (ASP) initiative mandating Infectious Diseases consultation for episodes of SAB, our ASP prospectively monitored all cases of SAB at a 341-bed community hospital in Jefferson Hills, PA from April 2017–February 2019. Cases included patients with 30-day mortality from the initial positive blood culture. Only the first episode of SAB was included; patients were excluded if a treatment plan was not established (e.g., left against medical advice). Patient demographics, comorbidities, laboratory results, and clinical management of SAB were evaluated. Inferential statistics were used to analyze risk factors associated with 30-day mortality. Results 100 patients with SAB were included; 18 (18%) experienced 30-day mortality. Cases were older (median age 76.5 vs. 64 years, P < 0.001), more likely to be located in the intensive care unit (ICU) at time of ASP review (55.6% vs. 30.5%, P = 0.043), and less likely to have initial blood cultures obtained in the emergency department (ED) (38.9% vs. 80.5%, P < 0.001). Variables associated with significantly higher odds for 30-day mortality in univariate analysis: older age, location in ICU at time of ASP review, initial blood cultures obtained at a location other than the ED, and total Charlson Comorbidity Index (CCI). Variables with P < 0.2 on univariate analysis were analyzed via multivariate logistic regression (Table 1). Conclusion Results show that bacteremia due to MRSA and total CCI were not significantly associated with 30-day mortality in SAB, whereas older age was identified as a risk factor. Patients with initial blood cultures obtained at a location other than the ED were at increased odds for 30-day mortality on univariate analysis, which may raise concern for delayed diagnosis. Disclosures All authors: No reported disclosures.


2010 ◽  
Vol 123 (7) ◽  
pp. 631-637 ◽  
Author(s):  
Hitoshi Honda ◽  
Melissa J. Krauss ◽  
Jeffrey C. Jones ◽  
Margaret A. Olsen ◽  
David K. Warren

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