• Masao Iwagami, Hideo Yasunaga, Eisei Noiri, Hiromasa Horiguchi, Kiyohide Fushimi, Takehiro Matsubara, Naoki Yahagi, Masaomi Nangaku, and Kent Doi.
• Department of Hemodialysis and Apheresis, The University of Tokyo Hospital, Tokyo, Japan.
• J Crit Care. 2015 Apr 1; 30 (2): 381-5.

PurposeThis study was undertaken to assess recent trends of the choice of renal replacement therapy (RRT) modalities in Japanese intensive care units (ICUs).Materials And MethodsData were extracted from the Japanese Diagnosis Procedure Combination database for 2011. We identified adult patients without end-stage renal disease who had been admitted to ICUs for 3 days or longer and started continuous RRT (CRRT) or intermittent RRT (IRRT). Logistic regression was used to analyze which factors affected the modality choice. We further evaluated in-hospital mortality according to the choice of RRT.ResultsOf 7353 eligible patients, 5854 (79.6%) initially received CRRT. The choice of CRRT was independently associated with sex (female), diagnosis of sepsis, hospital type (academic) and volume, vasoactive agents, mechanical ventilation, colloid administration, blood transfusion, intra-aortic balloon pumping, and venoarterial extracorporeal membrane oxygenation. Particularly, the number of vasoactive drugs was strongly associated with the CRRT choice. Overall in-hospital mortality in the CRRT group was higher than that in the IRRT group (50.0% vs 31.1%) and was increased when IRRT was switched to CRRT (59.1%).ConclusionsContinuous RRT is apparently preferred in actual ICU practice, especially for hemodynamically unstable patients, and subsequent RRT modality switch is associated with mortality.Copyright © 2014 Elsevier Inc. All rights reserved.

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