• Tasuku Matsuyama, Taku Iwami, Tomoki Yamada, Koichi Hayakawa, Kazuhisa Yoshiya, Taro Irisawa, Yoshio Abe, Tetsuro Nishimura, Toshifumi Uejima, Yasuo Ohishi, Takeyuki Kiguchi, Masashi Kishi, Masafumi Kishimoto, Shota Nakao, Yasuyuki Hayashi, Taku Sogabe, Takaya Morooka, Junichi Izawa, Tomonari Shimamoto, Toshihiro Hatakeyama, Tomoko Fujii, Junya Sado, Takashi Kawamura, Takeshi Shimazu, and Tetsuhisa Kitamura.
• 1 Department of Emergency Medicine, Kyoto Prefectural University of Medicine , Kyoto, Japan .
• Ther Hypothermia Temp Manag. 2018 Sep 1; 8 (3): 165-172.

AbstractTo assess whether serum albumin concentration measured upon hospital arrival was useful as an early prognostic biomarker for neurologically favorable outcome in out-of-hospital cardiac arrest (OHCA) patients treated with target temperature management (TTM). This prospective, multicenter observational study (The CRITICAL Study) carried out between July 1, 2012 and December 31, 2014 in Osaka Prefecture, Japan involving 13 critical care medical centers (CCMCs) and one non-CCMC with an emergency department. This study included patients ≥18 years of age who underwent an OHCA, for whom resuscitation was attempted by Emergency Medical Services personnel and were then transported to participating institutions, and who were then treated with TTM. Based on the serum albumin concentration upon hospital arrival, involved patients were divided into four quartiles (Q1-Q4) defined as Q1 (<3.0 g/dL), Q2 (≥3.0, <3.4 g/dL), Q3 (≥3.4, <3.8 g/dL), and Q4 (≥3.8 g/dL). The primary outcome of this study was 1-month survival with neurologically favorable outcome defined by cerebral performance category 1 or 2. During the study period, a total of 327 were eligible for our analysis. The overall proportion of neurologically favorable outcome was 33.0% (108/327). The Q4 group had the highest proportion of neurologically favorable outcome (52.5% [48/91]), followed by Q3 (34.5% [30/87]), Q2 (27.3% [21/77]), and Q1 (12.5% [9/72]). The multivariable logistic regression analysis demonstrated that the proportion of neurologically favorable outcome was significantly higher in the Q4 group than that in the Q1 group (adjusted odds ratio 10.39; 95% confidence interval 3.36-32.17). The adjusted proportion of neurologically favorable outcome increased in a stepwise fashion across increasing quartiles (p < 0.001). In this study, higher serum albumin concentration upon hospital arrival had a positive association with neurologically favorable outcome after OHCA in a dose-dependent manner.

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