Comparison of intermittent and continuous renal replacement therapy for sepsis-associated AKI: a retrospective analysis of the Japanese ICU database

Abstract Introduction While both intermittent renal replacement therapy (IRRT) and continuous renal replacement therapy (CRRT) are used to treat sepsis-associated acute kidney injury (S-AKI), their comparative effectiveness remains unclear. We compared the outcomes between these modalities in patien...

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Bibliographic Details
Main Authors: Hiromu Okano, Hiroshi Okamoto, Haruna Tanaka, Ryota Sakurai, Tsutomu Yamazaki
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:JA Clinical Reports
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Online Access:https://doi.org/10.1186/s40981-025-00787-8
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Summary:Abstract Introduction While both intermittent renal replacement therapy (IRRT) and continuous renal replacement therapy (CRRT) are used to treat sepsis-associated acute kidney injury (S-AKI), their comparative effectiveness remains unclear. We compared the outcomes between these modalities in patients with S-AKI. Methods Data from the Japanese Intensive Care Patient Database (JIPAD) was used for this multi-center retrospective cohort study. Adult patients with S-AKI who received either IRRT or CRRT between 2015 and 2021 were included. The primary outcome was in-hospital mortality. We compared IRRT and CRRT using one-to-three propensity score matching analysis. A subgroup analysis was performed in patients with septic shock. Results Of the 756 patients analyzed, 79 received IRRT, and 677 received CRRT. After propensity score matching, baseline characteristics were well-balanced between groups. In-hospital mortality showed no significant difference between IRRT and CRRT (48.6% vs. 38.0%; risk difference − 10.6%; 95% CI − 23.0 to 2.9; P = 0.11). In patients with septic shock, in-hospital mortality was also not different between groups (52.6% vs. 40.4%; risk difference − 12.2%; 95% CI − 28.8 to 3.7; P = 0.10). Conclusion IRRT and CRRT may be similar in-hospital mortality in patients with S-AKI. Further studies are warranted to determine the most effective renal replacement modality for this patient population.
ISSN:2363-9024