25 results on '"Schwarzkopf, Daniel"'
Search Results
2. Future Ship Emission Scenarios with a Focus on Ammonia Fuel.
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Schwarzkopf, Daniel A., Petrik, Ronny, Hahn, Josefine, Ntziachristos, Leonidas, Matthias, Volker, and Quante, Markus
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INTERNAL combustion engines , *SPARK ignition engines , *DIESEL motors , *GAS as fuel , *LIQUEFIED natural gas , *HYDROGEN as fuel - Abstract
Current efforts by the International Maritime Organization (IMO) to decarbonize the shipping sector have gained momentum, although the exact path to achieve this goal is currently unclear. However, it can be safely assumed that alternative cleaner and zero-carbon fuels will be key components in the strategy. In this work, three ship emission scenarios for 2025, 2040, and 2050 were developed that cover the area of the North and Baltic Seas. They aim at a fundamental transition in the usage of marine fuels towards ammonia as the mainly used fuel in 2050, via an intermediate step in 2040 with liquefied natural gas as the main fuel. Additionally, expected trends and developments for the shipping sector were implemented, i.e., a fleet growth by vessel size and number. Efficiency improvements were included that are in accordance with the Energy Efficiency Design Index of the IMO. The scenarios were created using a novel method based on modifications to a virtual shipping fleet. The vessels in this fleet were subject to decommission and renewal cycles that adapt them to the scenario's target year. Emissions for this renewed shipping fleet were calculated with the Modular Ship Emission Modeling System (MoSES). With respect to ammonia engine technology, two cases were considered. The first case deals with compression ignition engines and marine gas oil as pilot fuel, while the second case treats spark ignition engines and hydrogen as the pilot fuel. The first case is considered more feasible until 2050. Reductions with the first case in 2050 compared to 2015 were 40% for CO 2 emissions. However, CO 2 equivalents were only reduced by 22%, with the difference mainly resulting from increased N 2 O emissions. NO X emissions were reduced by 39%, and different PM components and SO 2 were between 73% and 84% for the same target year. The estimated NH 3 slip from ammonia-fueled ships in the North and Baltic Seas was calculated to be 930 Gg in 2050. For the second ammonia engine technology that is considered more advanced, emission reductions were generally stronger and ammonia emissions smaller. [ABSTRACT FROM AUTHOR]
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- 2023
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3. Comparison of the Impact of Ship Emissions in Northern Europe and Eastern China.
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Schwarzkopf, Daniel A., Petrik, Ronny, Matthias, Volker, Quante, Markus, Yu, Guangyuan, and Zhang, Yan
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EMISSION inventories , *SHIP models , *AIR pollution , *CHEMICAL amplification , *AIR quality , *SHIPS , *MARITIME shipping , *MOTOR vehicle fleets - Abstract
It is well known that ship emissions contribute significantly to atmospheric pollution. However, the impact on air quality can regionally vary, as influenced by parameters such as the composition of the regional shipping fleet, state of background atmospheric pollution, and meteorological aspects. This study compared two regions with high shipping densities in 2015. These include the North and Baltic Seas in Europe and the Yellow and East China Seas in China. Here, a key focal point is an evaluation of differences and similarities of the impacts of ship emissions under different environmental conditions, particularly between regions with medium (Europe) and high air pollution (China). To assess this, two similarly performed chemical transport model runs were carried out with highly resolved bottom-up ship emission inventories for northern Europe and China, calculated with the recently developed MoSES model, publicly available emissions data for nonshipping sources (EDGAR, MEIC). The performance of the model was evaluated against measurement data recorded at coastal stations. Annual averages at affected coastal regions for NO 2 , SO 2 , O 3 and PM 2.5 were modeled in Europe to be 3, below 0.3 , 2.5 , 1 and in China 3, 2, 2–8, 1.5 , respectively, all given in μ g / m 3 . In highly affected regions, such as large harbors, the contributions of ship-related emissions modeled in Europe were 15%, 0.3 %, − 12.5 %, 1.25 % and in China were 15%, 6%, − 7.5 %, 2%, respectively. Absolute pollutant concentrations from ships were modeled slightly higher in China than in Europe, albeit the relative impact was smaller in China due to higher emissions from other sectors. The different climate zones of China and the higher level of atmospheric pollution were found to seasonally alter the chemical transformation processes of ship emissions. Especially in northern China, high PM concentrations during winter were found to regionally inhibit the transformation of ship exhausts to secondary PM, and reduce the impact of ship-related aerosols, compared to Europe. [ABSTRACT FROM AUTHOR]
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- 2022
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4. A multifaceted educational intervention improved anti-infectious measures but had no effect on mortality in patients with severe sepsis.
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Schwarzkopf, Daniel, Matthaeus-Kraemer, Claudia Tanja, Thomas-Rüddel, Daniel O., Rüddel, Hendrik, Poidinger, Bernhard, Bach, Friedhelm, Gerlach, Herwig, Gründling, Matthias, Lindner, Matthias, Scheer, Christian, Simon, Philipp, Weiss, Manfred, Reinhart, Konrad, Bloos, Frank, MEDUSA study group, Marx, Gernot, Schindler, Achim, Schürholz, Tobias, Schlegel‑Höfner, Heike, and Lehmann, Gunther
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SEPSIS , *MORTALITY - Abstract
Sepsis is a major reason for preventable hospital deaths. A cluster-randomized controlled trial on an educational intervention did not show improvements of sepsis management or outcome. We now aimed to test an improved implementation strategy in a second intervention phase in which new intervention hospitals (former controls) received a multifaceted educational intervention, while controls (former intervention hospitals) only received feedback of quality indicators. Changes in outcomes from the first to the second intervention phase were compared between groups using hierarchical generalized linear models controlling for possible confounders. During the two phases, 19 control hospitals included 4050 patients with sepsis and 21 intervention hospitals included 2526 patients. 28-day mortality did not show significant changes between study phases in both groups. The proportion of patients receiving antimicrobial therapy within one hour increased in intervention hospitals, but not in control hospitals. Taking at least two sets of blood cultures increased significantly in both groups. During phase 2, intervention hospitals showed higher proportion of adequate initial antimicrobial therapy and de-escalation within 5 days. A survey among involved clinicians indicated lacking resources for quality improvement. Therefore, quality improvement programs should include all elements of sepsis guidelines and provide hospitals with sufficient resources for quality improvement. Trial registration: ClinicalTrials.gov, NCT01187134. Registered 23 August 2010, https://www.clinicaltrials.gov/ct2/show/study/NCT01187134. [ABSTRACT FROM AUTHOR]
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- 2022
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5. A risk-model for hospital mortality among patients with severe sepsis or septic shock based on German national administrative claims data.
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Schwarzkopf, Daniel, Fleischmann-Struzek, Carolin, Rüddel, Hendrik, Reinhart, Konrad, and Thomas-Rüddel, Daniel O.
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SEPTIC shock , *SEPSIS , *PREDICTION models , *ALGORITHMS , *PATIENTS ,MORTALITY risk factors - Abstract
Background: Sepsis is a major cause of preventable deaths in hospitals. Feasible and valid methods for comparing quality of sepsis care between hospitals are needed. The aim of this study was to develop a risk-adjustment model suitable for comparing sepsis-related mortality between German hospitals. Methods: We developed a risk-model using national German claims data. Since these data are available with a time-lag of 1.5 years only, the stability of the model across time was investigated. The model was derived from inpatient cases with severe sepsis or septic shock treated in 2013 using logistic regression with backward selection and generalized estimating equations to correct for clustering. It was validated among cases treated in 2015. Finally, the model development was repeated in 2015. To investigate secular changes, the risk-adjusted trajectory of mortality across the years 2010–2015 was analyzed. Results: The 2013 deviation sample consisted of 113,750 cases; the 2015 validation sample consisted of 134,851 cases. The model developed in 2013 showed good validity regarding discrimination (AUC = 0.74), calibration (observed mortality in 1st and 10th risk-decile: 11%-78%), and fit (R2 = 0.16). Validity remained stable when the model was applied to 2015 (AUC = 0.74, 1st and 10th risk-decile: 10%-77%, R2 = 0.17). There was no indication of overfitting of the model. The final model developed in year 2015 contained 40 risk-factors. Between 2010 and 2015 hospital mortality in sepsis decreased from 48% to 42%. Adjusted for risk-factors the trajectory of decrease was still significant. Conclusions: The risk-model shows good predictive validity and stability across time. The model is suitable to be used as an external algorithm for comparing risk-adjusted sepsis mortality among German hospitals or regions based on administrative claims data, but secular changes need to be taken into account when interpreting risk-adjusted mortality. [ABSTRACT FROM AUTHOR]
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- 2018
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6. The German Quality Network Sepsis: study protocol for the evaluation of a quality collaborative on decreasing sepsis-related mortality in a quasi-experimental difference-in-differences design.
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Schwarzkopf, Daniel, Rüddel, Hendrik, Gründling, Matthias, Putensen, Christian, and Reinhart, Konrad
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SEPSIS , *HOSPITAL mortality , *PUBLIC health , *HEALTH care teams , *HOSPITALS - Abstract
Background: While sepsis-related mortality decreased substantially in other developed countries, mortality of severe sepsis remained as high as 44% in Germany. A recent German cluster randomized trial was not able to improve guideline adherence and decrease sepsis-related mortality within the participating hospitals, partly based on lacking support by hospital management and lacking resources for documentation of prospective data. Thus, more pragmatic approaches are needed to improve quality of sepsis care in Germany. The primary objective of the study is to decrease sepsis-related hospital mortality within a quality collaborative relying on claims data.Method: The German Quality Network Sepsis (GQNS) is a quality collaborative involving 75 hospitals. This study protocol describes the conduction and evaluation of the start-up period of the GQNS running from March 2016 to August 2018. Democratic structures assure participatory action, a study coordination bureau provides central support and resources, and local interdisciplinary quality improvement teams implement changes within the participating hospitals. Quarterly quality reports focusing on risk-adjusted hospital mortality in cases with sepsis based on claims data are provided. Hospitals committed to publish their individual risk-adjusted mortality compared to the German average. A complex risk-model is used to control for differences in patient-related risk factors. Hospitals are encouraged to implement a bundle of interventions, e.g., interdisciplinary case analyses, external peer-reviews, hospital-wide staff education, and implementation of rapid response teams. The effectiveness of the GQNS is evaluated in a quasi-experimental difference-in-differences design by comparing the change of hospital mortality of cases with sepsis with organ dysfunction from a retrospective baseline period (January 2014 to December 2015) and the intervention period (April 2016 to March 2018) between the participating hospitals and all other German hospitals. Structural and process quality indicators of sepsis care as well as efforts for quality improvement are monitored regularly.Discussion: The GQNS is a large-scale quality collaborative using a pragmatic approach based on claims data. A complex risk-adjustment model allows valid quality comparisons between hospitals and with the German average. If this study finds the approach to be useful for improving quality of sepsis care, it may also be applied to other diseases.Trial Registration: ClinicalTrials.gov NCT02820675. [ABSTRACT FROM AUTHOR]- Published
- 2018
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7. Perceived Nonbeneficial Treatment of Patients, Burnout, and Intention to Leave the Job Among ICU Nurses and Junior and Senior Physicians.
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Schwarzkopf, Daniel, Rüddel, Hendrik, Thomas-Rüddel, Daniel O., Felfe, Jörg, Poidinger, Bernhard, Matthäus-Krämer, Claudia T., Hartog, Christiane S., and Bloos, Frank
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PSYCHOLOGICAL burnout , *PSYCHOLOGY of nurses , *INTENSIVE care units , *PHYSICIANS , *CROSS-sectional method , *NURSE turnover - Abstract
Objectives: Perceiving nonbeneficial treatment is stressful for ICU staff and may be associated with burnout. We aimed to investigate predictors and consequences of perceived nonbeneficial treatment and to compare nurses and junior and senior physicians.Design: Cross-sectional, multicenter paper-pencil survey on personal and work-related characteristics, perceived nonbeneficial treatment, burnout, and intention to leave the job.Setting: Convenience sample of 23 German ICUs.Subjects: ICU nurses and physicians.Interventions: None.Measurements and Main Results: A total of 847 questionnaires were returned (51% response); 778 had complete data for final multivariate analyses. Nonbeneficial treatment was in median perceived "sometimes." Adjusted for covariates, it was perceived more often by nurses and junior physicians (both p ≤ 0.001 in comparison to senior physicians), while emotional exhaustion was highest in junior physicians (p ≤ 0.015 in comparison to senior physicians and nurses), who also had a higher intention to leave than nurses (p = 0.024). Nonbeneficial treatment was predicted by high workload and low quality collaboration with other departments (both p ≤ 0.001). Poor nurse-physician collaboration predicted perception of nonbeneficial treatment among junior physicians and nurses (both p ≤ 0.001) but not among senior physicians (p = 0.753). Nonbeneficial treatment was independently associated with the core burnout dimension emotional exhaustion (p ≤ 0.001), which significantly mediated the effect between nonbeneficial treatment and intention to leave (indirect effect: 0.11 [95% CI, 0.06-0.18]).Conclusions: Perceiving nonbeneficial treatment is related to burnout and may increase intention to leave. Efforts to reduce perception of nonbeneficial treatment should improve the work environment and should be tailored to the different experiences of nurses and junior and senior physicians. [ABSTRACT FROM AUTHOR]- Published
- 2017
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8. End-of-life care in the intensive care unit: A patient-based questionnaire of intensive care unit staff perception and relatives’ psychological response.
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Hartog, Christiane S, Schwarzkopf, Daniel, Riedemann, Niels C, Pfeifer, Ruediger, Guenther, Albrecht, Egerland, Kati, Sprung, Charles L, Hoyer, Heike, Gensichen, Jochen, and Reinhart, Konrad
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- 2015
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9. End-of-life care in the intensive care unit: A patient-based questionnaire of intensive care unit staff perception and relatives’ psychological response.
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Hartog, Christiane S, Schwarzkopf, Daniel, Riedemann, Niels C, Pfeifer, Ruediger, Guenther, Albrecht, Egerland, Kati, Sprung, Charles L, Hoyer, Heike, Gensichen, Jochen, and Reinhart, Konrad
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ACADEMIC medical centers , *ATTITUDE (Psychology) , *CHI-squared test , *COMMUNICATION , *CONFIDENCE intervals , *DO-not-resuscitate orders , *FISHER exact test , *INTENSIVE care units , *INTERVIEWING , *LIFE change events , *LONGITUDINAL method , *MEDICAL personnel , *MULTIVARIATE analysis , *PSYCHOLOGICAL tests , *QUESTIONNAIRES , *REGRESSION analysis , *RESEARCH funding , *SCALE analysis (Psychology) , *SEPSIS , *STATISTICS , *TERMINALLY ill , *DATA analysis , *FAMILY attitudes , *DESCRIPTIVE statistics - Abstract
The article presents a study conducted to assess end-of-life care and communication from the perspective of intensive care unit staff. It also discusses psychological symptoms of relatives of patients receiving end-of-life care in the intensive care unit. Topics discussed include details of the study and its results, which reveal that communication need be improved within the intensive care unit caregiver team to strengthen the involvement of nurses in end-of-life care.
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- 2015
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10. Perioperative fluid therapy with tetrastarch and gelatin in cardiac surgery-a prospective sequential analysis*.
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Bayer, Ole, Schwarzkopf, Daniel, Doenst, Torsten, Cook, Deborah, Kabisch, Bjoern, Schelenz, Christoph, Bauer, Michael, Riedemann, Niels C, Sakr, Yasser, Kohl, Matthias, Reinhart, Konrad, and Hartog, Christiane S
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OBJECTIVES: To determine clinical outcomes of synthetic colloids, tetrastarch, and gelatin, used before and after cardiac surgery. DESIGN: Prospective observational cohort study. SETTING: Fifty-bed cardiac ICU. PATIENTS: Six thousand four hundred seventy-eight consecutive patients with cardiopulmonary bypass surgery. INTERVENTIONS: Fluid therapy in the operating room and on the ICU directed at preset hemodynamic goals: 1) hydroxyethyl starch (predominantly 6% hydroxyethyl starch 130/0.4) in 2004-2006, n = 2,137; 2) 4% gelatin in 2006-2008, n = 2,324; and 3) only crystalloids in 2008-2010, n = 2,017. MEASUREMENTS AND MAIN RESULTS: Renal replacement therapy was more common during periods when patients received synthetic colloids compared to only crystalloids. Risk of renal replacement therapy was greater after hydroxyethyl starch (odds ratio, 2.29; 95% CI, 1.47-3.60) and gelatin (odds ratio, 2.75; 95% CI, 1.84-4.16; both p < 0.001) compared to crystalloid. Propensity score stratification confirmed greater use of renal replacement therapy in the hydroxyethyl starch and gelatin periods compared to the crystalloid period (odds ratio, 1.46 [1.08, 1.97]; p = 0.013 and odds ratio, 1.72 [1.33, 2.24]; p < 0.001, respectively). Time to vasopressor cessation, normalization of serum lactate, and mean arterial pressure did not differ among groups. Total fluid requirement was 163 mL/kg in the hydroxyethyl starch period, 207 mL/kg in the gelatin period, and 224 mL/kg in the crystalloid period. Fluid intake was higher in the crystalloid group only during the first 20 hours. CONCLUSIONS: In cardiac surgery patients, fluid therapy with perioperative administration of synthetic colloids carries a high risk of renal replacement therapy and is not more effective than treating with only crystalloids. [ABSTRACT FROM AUTHOR]
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- 2013
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11. Perioperative Fluid Therapy With Tetrastarch and Gelatin in Cardiac Surgery-A Prospective Sequential Analysis.
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Bayer, Ole, Schwarzkopf, Daniel, Doenst, Torsten, Cook, Deborah, Kabisch, Bjoern, Schelenz, Christoph, Bauer, Michael, Riedemann, Niels C., Sakr, Yasser, Kohl, Matthias, Reinhart, Konrad, and Hartog, Christiane S.
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FLUID therapy , *GELATIN , *CARDIAC surgery , *SEQUENTIAL analysis , *HYDROXYETHYL starch , *VASOCONSTRICTORS , *THERAPEUTICS - Abstract
Objectives: To determine clinical outcomes of synthetic colloids, tetrastarch, and gelatin, used before and after cardiac surgery. Design: Prospective observational cohort study. Setting: Fifty-bed cardiac ICU. Patients: Six thousand four hundred seventy-eight consecutive patients with cardiopulmonary bypass surgery. Interventions: Fluid therapy in the operating room and on the ICU directed at preset hemodynamic goals: 1) hydroxyethyl starch (predominantly 6% hydroxyethyl starch 130/0.4) in 2004-2006, n = 2,137; 2) 4% gelatin in 2006-2008, n = 2,324; and 3) only crystalloids in 2008-2010, n = 2,017. Measurements and Main Results: Renal replacement therapy was more common during periods when patients received synthetic colloids compared to only crystalloids. Risk of renal replacement therapy was greater after hydroxyethyl starch (odds ratio, 2.29; 95% CI, 1.47-3.60) and gelatin (odds ratio, 2.75; 95% CI, 1.84-4.16; both p < 0.001) compared to crystalloid. Propensity score stratification confirmed greater use of renal replacement therapy in the hydroxyethyl starch and gelatin periods compared to the crystalloid period (odds ratio, 1.46 [1.08, 1.97]; p = 0.013 and odds ratio, 1.72 [1.33, 2.24]; p < 0.001, respectively). Time to vasopressor cessation, normalization of serum lactate, and mean arterial pressure did not differ among groups. Total fluid requirement was 163 mL/kg in the hydroxyethyl starch period, 207 mL/kg in the gelatin period, and 224 mL/kg in the crystalloid period. Fluid intake was higher in the crystalloid group only during the first 20 hours. Conclusions: In cardiac surgery patients, fluid therapy with perioperative administration of synthetic colloids carries a high risk of renal replacement therapy and is not more effective than treating with only crystalloids. [ABSTRACT FROM AUTHOR]
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- 2013
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12. Family satisfaction in the intensive care unit: a quantitative and qualitative analysis.
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Schwarzkopf, Daniel, Behrend, Susanne, Skupin, Helga, Westermann, Isabella, Riedemann, Niels, Pfeifer, Rüdiger, Günther, Albrecht, Witte, Otto, Reinhart, Konrad, and Hartog, Christiane
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PATIENT satisfaction , *INTENSIVE care units , *UNIVERSITY hospitals , *HOSPITAL wards , *ELECTRONIC health records , *WAITING rooms - Abstract
Purpose: To assess family satisfaction in the intensive care unit (ICU) and areas for improvement using quantitative and qualitative analyses. Methods: Prospective cohort study performed in four (mixed surgical, neurological, and cardiological) intensive care units of a university hospital in Germany, using a translated and validated version of the Family Satisfaction in the ICU (FS-ICU) questionnaire, with questions answerable on a rating scale and three open-ended questions about strengths and weaknesses. Quantitative analysis was performed to identify items with low performance and high importance. For qualitative analysis, comments were coded and analyzed to identify important themes. Patient-related data were obtained from an electronic patient data management system. Results: Participants were 215 family members visiting adult intensive care patients with length of stay over 48 h. Response rate was 28 %. Respondents were highly satisfied; summary scores were 78.3 ± 14.3 [mean ± standard deviation (SD)] on a scale of 0 (poor) to 100 (excellent). Regression analysis failed to identify association with patient- or family-related factors. The following themes for possible improvement emerged from both quantitative and qualitative analyses: patient agitation-consistency, clarity and completeness of information-emotional support-respect and compassion towards families. Families were also dissatisfied with the waiting room, ICU atmosphere, and amenities for visiting relatives. Conclusions: Families report high satisfaction with intensive care. Nevertheless, there is room for improvement, in particular regarding how ICU staff communicate with families and provide emotional support. [ABSTRACT FROM AUTHOR]
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- 2013
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13. Clinical phenotyping uncovers heterogeneous associations between corticosteroid treatment and survival in critically ill COVID-19 patients.
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Bruse, Niklas, Motos, Anna, van Amstel, Rombout, de Bie, Eckart, Kooistra, Emma J., Jansen, Aron, van Lier, Dirk, Kennedy, Jason, Schwarzkopf, Daniel, Thomas-Rüddel, Daniel, Bermejo-Martin, Jesus F., Barbe, Ferran, de Keizer, Nicolette F., Bauer, Michael, van der Hoeven, Johannes G., Torres, Antoni, Seymour, Christopher, van Vught, Lonneke, Pickkers, Peter, and Kox, Matthijs
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APACHE (Disease classification system) , *COVID-19 , *TREATMENT effect heterogeneity , *ACUTE kidney failure , *INTENSIVE care units - Abstract
Purpose: Disease heterogeneity in coronavirus disease 2019 (COVID-19) may render the current one-size-fits-all treatment approach suboptimal. We aimed to identify and immunologically characterize clinical phenotypes among critically ill COVID-19 patients, and to assess heterogeneity of corticosteroid treatment effect. Methods: We applied consensus k-means clustering on 21 clinical parameters obtained within 24 h after admission to the intensive care unit (ICU) from 13,279 COVID-19 patients admitted to 82 Dutch ICUs from February 2020 to February 2022. Derived phenotypes were reproduced in 6225 COVID-19 ICU patients from Spain (February 2020 to December 2021). Longitudinal immunological characterization was performed in three COVID-19 ICU cohorts from the Netherlands and Germany, and associations between corticosteroid treatment and survival were assessed across phenotypes. Results: We derived three phenotypes: COVIDICU1 (43% of patients) consisted of younger patients with the lowest Acute Physiology And Chronic Health Evaluation (APACHE) scores, highest body mass index (BMI), lowest PaO2/FiO2 ratio, and a 90-day in-hospital mortality rate of 18%. COVIDICU2 patients (37%) had the lowest BMI, were older and had higher APACHE scores and mortality rate (24%) than COVIDICU1. Patients with COVIDICU3 (20%) were the eldest with the most comorbidities, the highest APACHE scores, acute kidney injury and metabolic dysregulations, and the highest mortality rate (47%). These patients also displayed the most pronounced inflammatory response. Corticosteroid therapy started at day 5 [2–9] after ICU admission and administered for 5 [3–7] days was associated with an increased risk for 90-day mortality in patients with the COVIDICU1 and COVIDICU2 phenotypes (hazard ratio [HR] 1.59 [1.09–2.31], p = 0.015 and HR 1.79 [1.42–2.26], p < 0.001, respectively), but not in patients with the COVIDICU3 phenotype (HR 1.08 [0.76–1.54], p = 0.654). Conclusion: Our multinational study identified three distinct clinical COVID-19 phenotypes, each exhibiting marked differences in demographic, clinical, and immunological features, and in the response to late and short-term corticosteroid treatment. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Long-Term Courses of Sepsis Survivors: Effects of a Primary Care Management Intervention.
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Schmidt, Konrad FR, Schwarzkopf, Daniel, Baldwin, Laura-Mae, Brunkhorst, Frank M, Freytag, Antje, Heintze, Christoph, Reinhart, Konrad, Schneider, Nico, von Korff, Michael, Worrack, Susanne, Wensing, Michel, Gensichen, Jochen, and SMOOTH Study Group
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INTENSIVE care units , *PRIMARY care , *SEPSIS , *SEPTIC shock , *POST-traumatic stress , *PREVENTION of post-traumatic stress disorder , *RESEARCH , *RESEARCH methodology , *EVALUATION research , *MEDICAL cooperation , *PRIMARY health care , *COMPARATIVE studies ,ADMISSION & discharge - Abstract
Background: Sepsis survivors face mental and physical sequelae even years after discharge from the intensive care unit. The aim of this study was to evaluate the long-term courses of sepsis survivors and the effects of a primary care management intervention in sepsis aftercare.Methods: This study presents a 24-month follow-up of a randomized controlled trial that recruited 291 patients who survived sepsis (including septic shock) from nine German intensive care units. Participants were randomized to usual care (n=143) or to a 12-month-intervention (n=148). The intervention included training of patients and their primary care physicians (PCP) in evidence-based post-sepsis care, case management provided by trained nurses, and clinical decision support for PCPs by consulting physicians. Usual care was provided by PCPs in the control group. At the 24-month follow-up, 12 months after the 1-year-intervention, survival and measures of mental and physical health were collected by telephone interviews.Results: One hundred eighty-six (63.9%, 98 intervention, 88 control) of 291 patients completed the 24-month follow-up, showing both increased mortality and recovery from functional impairment. Unlike the intervention group, the control group showed a significant increase of posttraumatic stress symptoms according to the Posttraumatic Symptom Scale (difference between baseline and 24-months follow-up values, mean [standard deviation] 3.7 [11.8] control vs -0.7 [12.1] intervention; P = .016). There were no significant differences in all other outcomes between the intervention and control groups.Conclusions: Twelve months after completion, a primary care management intervention among survivors of sepsis did not improve mental health-related quality of life. Patients in the intervention group showed less posttraumatic stress symptoms. [ABSTRACT FROM AUTHOR]- Published
- 2020
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15. Improving prevention and early detection of sepsis among patient groups at risk: Introducing a model for a multimodal information campaign—The SepWiss study protocol.
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Abels, Wiltrud, Reinhart, Konrad, Neugebauer, Edmund, Wulkotte, Elisa, Toubekis, Evjenia, Piedmont, Silke, Born, Sebastian, Rieck, Thorsten, Wegwarth, Odette, Spies, Claudia, Schlattmann, Peter, Schwarzkopf, Daniel, and Fleischmann-Struzek, Carolin
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SEPSIS , *PUBLIC service advertising , *HEALTH attitudes , *VACCINATION coverage , *OUTDOOR advertising , *RESEARCH protocols - Abstract
Background: Sepsis is a life-threatening organ dysfunction due to a dysregulated host response to infection. Annually, sepsis leads to approx. 90.000 deaths in Germany. Risk factors include amongst others older age (>60), innate or acquired dysfunction of the immune system, and underlying chronic diseases of the lung, heart, liver, or kidneys. The manifestation of sepsis is a medical emergency, and patient outcomes depend on timely diagnosis and immediate treatment. In addition, vaccinations e.g., against pneumococci or influenza virus, are a highly effective public health tool to prevent the most common underlying infections that may lead to sepsis. However, a lack of public awareness for the relevance of vaccination and detecting sepsis as an emergency underlines the need for public health interventions that address these issues. SepWiss aims to evaluate the effects of a multimodal information campaign designed to address this lack of awareness among the risk population in Germany. Methods: SepWiss is an intervention at state level, consisting of a multimodal information campaign targeting risk groups in the German federal states of Berlin and Brandenburg (intervention region). Based on available evidence, various information formats were developed and implemented by outdoor advertising, social media, educational formats and through stakeholders' platforms, starting in August 2021. The control region comprises of the remaining 14 German federal states. We will analyze vaccination coverage (primary outcome), and sepsis knowledge, the ability to detect sepsis as an emergency, and attitude towards vaccination (secondary outcomes) amongst the risk population in a controlled before-after comparison. The implementation is accompanied by a mixed-method process evaluation. Discussion: SepWiss is the first project of its kind to evaluate a complex multi-faceted evidence-based information campaign with regards to the topics of vaccination coverage, and the importance of sepsis detection and prevention for the most vulnerable populations in Germany. Results will be valuable for informing further nationwide campaigns. Trial registration: German Registry for Clinical Trials: DRKS00024475. Registered February 24th, 2021. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Assessing the quality of patient handovers between ambulance services and emergency department - development and validation of the emergency department human factors in handover tool.
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Golling, Marina, Behringer, Wilhelm, and Schwarzkopf, Daniel
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AMBULANCE service , *HOSPITAL emergency services , *SERVICE departments , *AMBULANCES , *EXPLORATORY factor analysis , *EMERGENCY medical services - Abstract
Background: Patient handover between prehospital care and the emergency department plays a key role in patient safety. Therefore, we aimed to create a validated tool for measuring quality of communication and interprofessional relations during handover in this specific setting.Methods: Based on a theoretical framework a comprehensive item pool on information transfer and human factors in emergency department handovers was created and refined in a modified Delphi survey involving clinical experts. Based on a pre-test, items were again revised. The resulting Emergency Department Human Factors in Handover tool (ED-HFH) was validated in a field test at the emergency department of a German university hospital from July to December 2017. The ED-HFH was completed by emergency department and ambulance service staff participating in handovers and by an external observer. Description of item characteristics, exploratory factor analysis, analyses on internal consistency and interrater reliability by intraclass-correlation. Construct validity was analysed by correlation with an overall rating on quality of the handover.Results: The draft of the ED-HFH contained 24 items, 90 of 102 eligible staff members participated in the field test completing 133 questionnaires on 38 observed handovers. Four items were deleted after analysis of item characteristics. Factor analysis supported a single factor explaining 39% of variance in the items. Therefore, a sum-score was calculated with a possible range between 14 and 70. The median value of the sum-score in the sample was 61.5, Cronbach's α was 0.83, intraclass-correlation was 0.52, the correlation with the overall rating of hand-over quality was ρ = 0.83 (p ≤ 0.001).Conclusions: The ED-HFH showed its feasibility, reliability and validity as a measure of quality of information transfer and human factors in handovers between ambulance services and the emergency department. It promises to be a useful tool for quality assurance and staff training. [ABSTRACT FROM AUTHOR]- Published
- 2022
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17. Association between sepsis incidence and regional socioeconomic deprivation and health care capacity in Germany - an ecological study.
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Rose, Norman, Matthäus-Krämer, Claudia, Schwarzkopf, Daniel, Scherag, André, Born, Sebastian, Reinhart, Konrad, and Fleischmann-Struzek, Carolin
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SEPSIS , *SOCIOECONOMIC factors , *MEDICAL care , *PUBLIC health - Abstract
Background: Sepsis is a substantial health care burden. Data on regional variation in sepsis incidence in Germany and any possible associations with regional socioeconomic deprivation and health care capacity is lacking.Methods: Ecological study based on the nationwide hospital Diagnosis-related Groups (DRG) statistics data of 2016. We identified sepsis by ICD-10-codes and calculated crude and age-standardized incidence proportions in the 401 administrative German districts. Associations between socioeconomic and health care capacity indicators and crude and age-adjusted sepsis incidence were investigated by simple and multiple negative binomial (NB) regressions.Results: In 2016, sepsis incidence was 178 per 100,000 inhabitants and varied 10-fold between districts. We found that the rate of students leaving school without certificate was significantly associated with crude and age-standardized explicit sepsis incidence in the simple and multiple NB regressions. While we observed no evidence for an association to the capacity of hospital beds and general practitioners, the distance to the nearest pharmacy was associated with crude- and age-standardized sepsis incidence. In the multiple regression analyses, an increase of the mean distance + 1000 m was associated with an expected increase by 21.6 [95% CI, 10.1, 33.0] (p < 0.001), and 11.1 [95% CI, 1.0, 21.2]/100,000 population (p = .026) after adjusting for age differences between districts.Conclusions: Residence in districts with lower socioeconomic status (e.g., less education) and further distance to pharmacies are both associated with an increased sepsis incidence. This warrants further research with individual-level patient data to better model and understand such dependencies and to ultimately design public health interventions to address the burden of sepsis in Germany. [ABSTRACT FROM AUTHOR]- Published
- 2021
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18. Synthetic colloid resuscitation in severely injured patients: analysis of a nationwide trauma registry (TraumaRegister DGU).
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Hilbert-Carius, Peter, Schwarzkopf, Daniel, Reinhart, Konrad, Hartog, Christiane S., Lefering, Rolf, Bernhard, Michael, and Struck, Manuel F.
- Abstract
The purpose of this study was to investigate the efficacy and safety of synthetic colloid resuscitation among severely injured patients. Fluid resuscitation of trauma patients of a nationwide trauma registry was analysed between 2002 and 2015. Effects of synthetic colloid resuscitation in the pre-hospital setting and emergency department on renal failure, renal replacement therapy and multiple organ failure were analysed among patients with ≥2 days intensive care unit stay, and in-hospital mortality was analysed among all patients. 48,484 patients with mean age of 49 years and mean injury severity score of 23 points were included; 72.3% were male and 95.5% had blunt trauma. Risk-adjusted analyses revealed that patients receiving >1,000 ml synthetic colloids experienced an increase of renal failure and renal replacement therapy rates (OR 1.42 and 1.32, respectively, both p ≤ 0.006). Any synthetic colloid use was associated with an increased risk of multiple organ failure (p < 0.001), but there was no effect on hospital mortality (p = 0.594). Between 2002 and 2015 usage of synthetic colloids dropped, likewise did total fluid intake and usage of blood products. The data from this analysis suggests that synthetic colloid resuscitation provides no beneficial effects and might be harmful in patients with severe trauma. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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19. Teaching medical students to talk about death and dying in the ICU: feasibility of a peer-tutored workshop.
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Dorner, Lena, Schwarzkopf, Daniel, Skupin, Helga, Philipp, Swetlana, Gugel, Katrin, Meissner, Winfried, Schuler, Stefan, and Hartog, Christiane
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PEER teaching , *COMMUNICATIVE competence , *COMMUNICATION education , *ADULT education workshops , *TRAINING , *EDUCATION - Abstract
The article discusses a study which explored the possibility of peer teaching for communication skills training. Topics discussed include the details of a workshop developed by the researchers to teach communication skills, the reason that peer teaching for communication skills training seems attractive and feasible, and the self-rating of communication skills given by students before and after training.
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- 2015
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20. Text-Based vs. Graphical Information Formats in Sepsis Prevention and Early Detection: A Randomized Controlled Trial on Informed Choice.
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Debbeler, Luka Johanna, Pohrt, Anne, Fleischmann-Struzek, Carolin, Schwarzkopf, Daniel, Born, Sebastian, Reinhart, Konrad, and Wegwarth, Odette
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RANDOMIZED controlled trials , *SEPSIS , *HEALTH literacy - Abstract
Sepsis is associated with 11 million global deaths annually. Although serious consequences of sepsis can generally be avoided with prevention and early detection, research has not yet addressed the efficacy of evidence-based health information formats for different risk groups. This study examines whether two evidence-based health information formats—text based and graphical—differ in how well they foster informed choice and risk and health literacy and in how well they support different sepsis risk groups. Based on a systematic literature review, two one-page educative formats on sepsis prevention and early detection were designed—one text based and one graphical. A sample of 500 German participants was randomly shown one of the two formats; they were then assessed on whether they made informed choices and on their risk and health literacy. For both formats, >70% of participants made informed choices for sepsis prevention and >75% for early detection. Compared with the graphical format, the text-based format was associated with higher degrees of informed choice (p = 0.012, OR = 1.818) and risk and health literacy (p = 0.032, OR = 1.710). Both formats can foster informed choices and risk and health literacy on sepsis prevention and early detection, but the text-based format appears to be more effective. [ABSTRACT FROM AUTHOR]
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- 2022
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21. Epidemiology of Sepsis Among Children and Neonates in Germany: Results From an Observational Study Based on Nationwide Diagnosis-Related Groups Data Between 2010 and 2016.
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Born, Sebastian, Dame, Christof, Matthäus-Krämer, Claudia, Schlapbach, Luregn J., Reichert, Felix, Schettler, Anna, Schwarzkopf, Daniel, Thomas-Rüddel, Daniel, Proquitté, Hans, Reinhart, Konrad, and Fleischmann-Struzek, Carolin
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NEONATAL sepsis , *VERY low birth weight , *LOW birth weight , *SEPSIS , *NEWBORN infants , *NOSOLOGY , *DIAGNOSIS related groups , *MORTALITY , *AGE distribution , *PATIENTS , *RETROSPECTIVE studies , *DISEASE incidence , *HOSPITAL admission & discharge , *BIRTH weight , *COMORBIDITY - Abstract
Objectives: Worldwide, more than half of all sepsis cases occur in pediatric and adolescent patients, particularly in neonates. Previous population-based studies in these age groups often were limited to either neonatal or pediatric patients admitted to ICUs. We aimed to investigate the overall and age-specific incidence and case fatality of sepsis in children in Germany, a high-income country with a total population of 82 million.Design: Retrospective observational study based on the German Diagnosis-related Groups statistics of the years 2010-2016.Setting: All acute care hospitals in Germany except for prison and psychiatric hospitals.Patients: Pediatric patients less than or equal to 19 years with International Classification of Diseases, 10th Revision-coded sepsis, neonates with International Classification of Diseases, 10th Revision-coded neonatal sepsis.Interventions: None.Measurements and Main Results: We analyzed pediatric sepsis incidence in patients aged birth to less than or equal to 19 years old, case fatality, and underlying comorbidities, and neonatal sepsis incidence and case fatality within the neonatal period. We identified 14,635 pediatric sepsis cases among 15.4 million pediatric hospitalizations between 2010 and 2016 (= 0.1% of pediatric hospitalizations). The incidence of pediatric sepsis was 14 cases per 100,000 children between 0 and 19 years. Case fatality was 16.6% and decreased from 17.8% (2010) to 15.0% (2016). A total of 11.5% of hospital deaths in the age group 0-19 years were associated with pediatric sepsis. Sepsis incidence and case fatality were highest in children less than 1 year old and declined in older children and adolescents. Admissions with pediatric sepsis were more common in children with preexisting comorbidities compared with those without (0.52% vs 0.03% of pediatric admissions). In neonates, the incidence of neonatal sepsis was 1,006 cases per 100,000 live births. Case fatality was 3.9%. While 17.7% of very low birth weight infants had neonatal sepsis, only 2.1% of low birth weight and 0.6% of normal birth weight neonates were affected, respectively.Conclusions: Sepsis is also in Germany a common and frequently fatal condition in pediatric patients, particularly among neonates and children with comorbidities. [ABSTRACT FROM AUTHOR]- Published
- 2021
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22. Comparing the validity of different ICD coding abstraction strategies for sepsis case identification in German claims data.
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Fleischmann-Struzek, Carolin, Thomas-Rüddel, Daniel O., Schettler, Anna, Schwarzkopf, Daniel, Stacke, Angelika, Seymour, Christopher W., Haas, Christoph, Dennler, Ulf, and Reinhart, Konrad
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SEPSIS , *MORTALITY , *TERTIARY care , *CLINICAL trials , *DIAGNOSIS - Abstract
Introduction: Administrative data are used to generate estimates of sepsis epidemiology and can serve as source for quality indicators. Aim was to compare estimates on sepsis incidence and mortality based on different ICD-code abstraction strategies and to assess their validity for sepsis case identification based on a patient sample not pre-selected for presence of sepsis codes. Materials and methods: We used the national DRG-statistics for assessment of population-level sepsis incidence and mortality. Cases were identified by three previously published International Statistical Classification of Diseases (ICD) coding strategies for sepsis based on primary and secondary discharge diagnoses (clinical sepsis codes (R-codes), explicit coding (all sepsis codes) and implicit coding (combined infection and organ dysfunction codes)). For the validation study, a stratified sample of 1120 adult patients admitted to a German academic medical center between 2007–2013 was selected. Administrative diagnoses were compared to a gold standard of clinical sepsis diagnoses based on manual chart review. Results: In the validation study, 151/937 patients had sepsis. Explicit coding strategies performed better regarding sensitivity compared to R-codes, but had lower PPV. The implicit approach was the most sensitive for severe sepsis; however, it yielded a considerable number of false positives. R-codes and explicit strategies underestimate sepsis incidence by up to 3.5-fold. Between 2007–2013, national sepsis incidence ranged between 231-1006/100,000 person-years depending on the coding strategy. Conclusions: In the sample of a large tertiary care hospital, ICD-coding strategies for sepsis differ in their accuracy. Estimates using R-codes are likely to underestimate the true sepsis incidence, whereas implicit coding overestimates sepsis cases. Further multi-center evaluation is needed to gain better understanding on the validity of sepsis coding in Germany. [ABSTRACT FROM AUTHOR]
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- 2018
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23. Effect of a multifaceted educational intervention for anti-infectious measures on sepsis mortality: a cluster randomized trial.
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Bloos, Frank, Rüddel, Hendrik, Thomas-Rüddel, Daniel, Schwarzkopf, Daniel, Pausch, Christine, Harbarth, Stephan, Schreiber, Torsten, Gründling, Matthias, Marshall, John, Simon, Philipp, Levy, Mitchell, Weiss, Manfred, Weyland, Andreas, Gerlach, Herwig, Schürholz, Tobias, Engel, Christoph, Matthäus-Krämer, Claudia, Scheer, Christian, Bach, Friedhelm, and Riessen, Reimer
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SEPTICEMIA treatment , *ANTIBIOTICS , *ANTI-infective agents , *MEDICAL education , *MORTALITY , *RANDOMIZED controlled trials - Abstract
Purpose: Guidelines recommend administering antibiotics within 1 h of sepsis recognition but this recommendation remains untested by randomized trials. This trial was set up to investigate whether survival is improved by reducing the time before initiation of antimicrobial therapy by means of a multifaceted intervention in compliance with guideline recommendations.Methods: The MEDUSA study, a prospective multicenter cluster-randomized trial, was conducted from July 2011 to July 2013 in 40 German hospitals. Hospitals were randomly allocated to receive conventional continuous medical education (CME) measures (control group) or multifaceted interventions including local quality improvement teams, educational outreach, audit, feedback, and reminders. We included 4183 patients with severe sepsis or septic shock in an intention-to-treat analysis comparing the multifaceted intervention (n = 2596) with conventional CME (n = 1587). The primary outcome was 28-day mortality.Results: The 28-day mortality was 35.1% (883 of 2596 patients) in the intervention group and 26.7% (403 of 1587 patients; p = 0.01) in the control group. The intervention was not a risk factor for mortality, since this difference was present from the beginning of the study and remained unaffected by the intervention. Median time to antimicrobial therapy was 1.5 h (interquartile range 0.1-4.9 h) in the intervention group and 2.0 h (0.4-5.9 h; p = 0.41) in the control group. The risk of death increased by 2% per hour delay of antimicrobial therapy and 1% per hour delay of source control, independent of group assignment.Conclusions: Delay in antimicrobial therapy and source control was associated with increased mortality but the multifaceted approach was unable to change time to antimicrobial therapy in this setting and did not affect survival. [ABSTRACT FROM AUTHOR]- Published
- 2017
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24. Effects of fluid resuscitation with synthetic colloids or crystalloids alone on shock reversal, fluid balance, and patient outcomes in patients with severe sepsis: A prospective sequential analysis.
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Bayer, Ole, Reinhart, Konrad, Kohl, Matthias, Kabisch, Björn, Marshall, John, Sakr, Yasser, Bauer, Michael, Hartog, Christiane, Schwarzkopf, Daniel, and Riedemann, Niels
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FLUID therapy , *SEPTIC shock treatment , *COLLOIDS in medicine , *CRITICAL care medicine , *HYDROXYETHYL starch , *GELATIN , *BLOOD plasma substitutes - Abstract
The article assesses shock reversal and required fluid volumes in septic shock patients. Results reveal that shock reversal was realized fast with synthetic colloids or crystalloids. Colloids use led to just marginally lower required volumes of resuscitation fluid. Findings also suggest that both low molecular weight hydroxyethyl starch and gelatin may impair renal function.
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- 2012
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25. The authors reply.
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Bayer, Ole, Reinhart, Konrad, Cook, Deborah, Schwarzkopf, Daniel, Kabisch, Bjoern, and Hartog, Christiane S
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- 2014
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