• Hiroshi Fukushima, Masaki Kobayashi, Keizo Kawano, and Shinji Morimoto.
• Department of Urology, Tsuchiura Kyodo General Hospital, Tsuchiura, Japan. Electronic address: fukuuro@tmd.ac.jp.
• J. Urol. 2018 Jun 1; 199 (6): 1526-1533.

PurposeThe Third International Consensus Definitions for Sepsis and Septic Shock Task Force proposed a new definition of sepsis based on the SOFA (Sequential [Sepsis-related] Organ Failure Assessment) score and introduced a novel scoring system, quickSOFA, to screen patients at high risk for sepsis. However, the clinical usefulness of these systems is unclear. Therefore, we investigated predictive performance for mortality in patients with acute pyelonephritis associated with upper urinary tract calculi.Materials And MethodsThis retrospective study included 141 consecutive patients who were clinically diagnosed with acute pyelonephritis associated with upper urinary tract calculi outside the intensive care unit. We evaluated the performance of the quickSOFA, SOFA and SIRS (systemic inflammatory response syndrome) scores to predict in-hospital mortality and intensive care unit admission using the AUC of the ROC curve, net reclassification, integrated discrimination improvements and decision curve analysis.ResultsA total of 11 patients (8%) died in the hospital and 26 (18%) were admitted to the intensive care unit. The AUC of quickSOFA to predict in-hospital mortality and intensive care unit admission was significantly greater than that of SIRS (each p <0.001) and comparable to that of SOFA (p = 0.47 and 0.57, respectively). When incorporated into the baseline model consisting of patient age, gender and the Charlson Comorbidity Index, quickSOFA and SOFA provided a greater change in AUC, and in net classification and integrated discrimination improvements than SIRS for each outcome. Decision curve analyses revealed that the quickSOFA and SOFA incorporated models showed a superior net benefit compared to the SIRS incorporated model for most examined probabilities of the 2 outcomes. The in-hospital mortality rate of patients with a quickSOFA score of 2 or greater and a SOFA score of 7 or greater, which were the optimal cutoffs determined by the Youden index, was 18% and 28%, respectively.ConclusionsSOFA and quickSOFA are more clinically useful scoring systems than SIRS to predict mortality in patients with acute pyelonephritis associated with upper urinary tract calculi.Copyright © 2018 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

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