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Published in: European Journal of Medical Research 1/2023

Open Access 01-12-2023 | Cytokines | Research

Comparison of the cytokine adsorption ability in continuous renal replacement therapy using polyethyleneimine-coated polyacrylonitrile (AN69ST) or polymethylmethacrylate (PMMA) hemofilters: a pilot single-center open-label randomized control trial

Authors: Yoshihiko Nakamura, Hiroki Hatomoto, Shintaro Yamasaki, Kazuya Yamauchi, Fumiaki Kiyomi, Kota Hoshino, Yasumasa Kawano, Takafumi Nakano, Takehiro Hasegawa, Hiroyasu Ishikura

Published in: European Journal of Medical Research | Issue 1/2023

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Abstract

Background

Sepsis occurs as a result of dysregulated host response to infection. However, cytokine adsorption therapy may restore the balance of proinflammatory and anti-inflammatory mediator responses in patients with sepsis. This study aimed to determine the cytokine adsorption ability of two different types of continuous renal replacement therapy (CRRT) hemofilters for polyethyleneimine-coated polyacrylonitrile (AN69ST) (surface-treated) and polymethylmethacrylate (PMMA) CRRT.

Methods

We performed a randomized controlled trial among sepsis patients undergoing CRRT, who were randomly assigned (1:1) to receive either AN69ST or PMMA-CRRT. The primary outcome was cytokine clearance of hemofilter adsorption (CHA). The secondary endpoints were the intensive care unit (ICU) and 28-day mortalities.

Results

We randomly selected 52 patients. Primary outcome data were available for 26 patients each in the AN69ST-CRRT and PMMA-CRRT arms. The CHA of high-mobility group box 1, tumor necrosis factor, interleukin (IL)-8, monokine induced by interferon-γ, and macrophage inflammatory protein were significantly higher in the AN69ST-CRRT group than in the PMMA-CRRT group (P < 0.001, P < 0.01, P < 0.001, P < 0.001 and P < 0.001, respectively). In contrast, the CHA of IL-6 was significantly higher in the PMMA-CRRT group than in the AN69ST-CRRT group (P < 0.001). In addition, the 28-day mortality was not significantly different between the two groups (50% in AN69ST-CRRT vs. 30.8% in PMMA-CRRT, P = 0.26).

Conclusion

AN69ST and PMMA membranes have different cytokine CHA in patients with sepsis. Therefore, these two hemofilters may have to be used depending on the target cytokine.
Trial registration number: This study was registered in the University Hospital Medical Information Network on November 1, 2017 (Trial No: UMIN000029450, https://​center6.​umin.​ac.​jp).
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Metadata
Title
Comparison of the cytokine adsorption ability in continuous renal replacement therapy using polyethyleneimine-coated polyacrylonitrile (AN69ST) or polymethylmethacrylate (PMMA) hemofilters: a pilot single-center open-label randomized control trial
Authors
Yoshihiko Nakamura
Hiroki Hatomoto
Shintaro Yamasaki
Kazuya Yamauchi
Fumiaki Kiyomi
Kota Hoshino
Yasumasa Kawano
Takafumi Nakano
Takehiro Hasegawa
Hiroyasu Ishikura
Publication date
01-12-2023
Publisher
BioMed Central
Published in
European Journal of Medical Research / Issue 1/2023
Electronic ISSN: 2047-783X
DOI
https://doi.org/10.1186/s40001-023-01184-6

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