Abstract
Objectives
To describe the clinical characteristics and in-hospital mortality of chronic dialysis-dependent end-stage kidney disease patients with septic shock in comparison to septic shock patients not receiving chronic dialysis.
Methods
Using an international, multicenter database, we conducted a retrospective analysis of data collected from 10,414 patients admitted to the intensive care unit (ICU) with septic shock from 1989 to 2013, of which 800 (7.7 %) were chronic dialysis patients. Data on demographic characteristics, sites of infection, microbial pathogens, antimicrobial usage patterns, and in-hospital mortality were aggregated and compared for chronic dialysis and non-dialysis patients. Multivariate time-varying Cox models with and without propensity score matching were constructed to determine the association between dialysis and in-hospital death.
Results
Septic shock secondary to central venous catheter infection, peritonitis, ischemic bowel, and cellulitis was more frequent in chronic dialysis patients. The isolation of resistant organisms (10.7 vs. 7.1 %; p = 0.005) and delays in receiving antimicrobials (6.0 vs. 5.0 h) were more common in chronic dialysis patients than in non-dialysis patients. Delayed appropriate antimicrobial therapy was associated with an increased risk of death in chronic dialysis patients (p < 0.0001). In-hospital death occurred in 54.8 and 49.0 % of chronic dialysis and non-dialysis patients, respectively. After propensity score matching, there was no difference in overall survival between chronic dialysis and non-dialysis patients, but survival in chronic dialysis patients decreased over time compared to non-dialysis patients.
Conclusions
The demographic and clinical characteristics of chronic dialysis patients with septic shock differ from those of similar non-dialysis patients. However, there was no significant difference in mortality between the chronic dialysis and non-dialysis patients with septic shock enrolled in this analysis.
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Acknowledgments
Dr. Manish M. Sood is supported by the Jindal Research Chair for the Prevention of Kidney Disease. Partial funding for this study was provided by the Manitoba Research Foundation, The Deacon Foundation, Astellas, Pfizer, and Astra-Zeneca. Dr. Sean M. Bagshaw is supported by Canada Research Chair in Critical Care Nephrology and an Independent Investigator Award from Alberta Innovates—Health Solutions.
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Take-home message: Chronic dialysis patients admitted to the ICU with septic shock undergo time-varying survival, with early improved survival followed by similar or worse survival compared to non-dialysis patients. The former also differ from non-dialysis patients in terms of causative organisms, site of infection and delayed empiric antimicrobials. Improvements in timely antimicrobial therapy could optimize outcomes.
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Clark, E., Kumar, A., Langote, A. et al. Septic shock in chronic dialysis patients: clinical characteristics, antimicrobial therapy and mortality. Intensive Care Med 42, 222–232 (2016). https://doi.org/10.1007/s00134-015-4147-9
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DOI: https://doi.org/10.1007/s00134-015-4147-9