• Journal of intensive care · Jan 2019

    Timing of administration of epinephrine predicts the responsiveness to epinephrine in norepinephrine-refractory septic shock: a retrospective study.

    • Daisuke Kasugai, Mitsuaki Nishikimi, Kazuki Nishida, Michiko Higashi, Takanori Yamamoto, Atsushi Numaguchi, Kunihiko Takahashi, Shigeyuki Matsui, and Naoyuki Matsuda.
    • Department of Emergency and Critical Care, Nagoya, University Graduate School of Medicine, Tsurumai-cho 64, Syowa-ku, Nagoya, Aichi 4668560 Japan.
    • J Intensive Care. 2019 Jan 1; 7: 20.

    BackgroundCurrently, the appropriate method of management of patients with refractory septic shock remains unclear. This study aimed to evaluate the factors associated with response to epinephrine in norepinephrine-refractory septic shock.MethodsA retrospective single-center observational study was performed using data from adult patients (≥ 18 years old) admitted to our emergency and medical intensive care unit (ICU) from January 2014 to December 2017 who had received epinephrine to treat norepinephrine-refractory septic shock. The response was considered positive if there was increase in mean arterial pressure of 10 mmHg or decrease in arterial lactate level 3 h after epinephrine administration.ResultsForty-one patients were included: 24 responders (59%) and 17 non-responders (41%). Responders showed higher rate of survival from shock (92% vs. 18%; P < 0.001), and 28-day survival (83% vs. 18%; P < 0.001). In multivariable analysis, time of epinephrine administration after ICU admission (odds ratio [OR] 0.48; 95% confidence interval [CI] 0.27-0.87; P = 0.011) and SOFA score (OR 0.19; 95% CI 0.04-0.88; P = 0.034) were associated with epinephrine response. Time of epinephrine administration was also significantly associated with survival from shock (OR 0.42; P = 0.005) and 28-day survival (OR 0.14; P = 0.006), while SOFA score did not. Using inverse probability of treatment weighing (IPTW) adjustment of propensity score, epinephrine administration later than 24 h after ICU admission was associated with poor response (OR 0.07; 95% CI 0.02-0.21; P < 0.001).ConclusionsEarly administration of epinephrine after ICU admission (i.e., within 24 h) is associated with better hemodynamic status in patients with refractory septic shock.

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