Woo Jin Joo1, Kazuki Ide2, Yohei Kawasaki3, Chikashi Takeda4, Tomotsugu Seki1, Tomoko Usui5, Koji Kawakami6. 1. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto-city, Japan. 2. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto-city, Japan; Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan. 3. Biostatistics Section, Clinical Research Center, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba-city, Japan. 4. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto-city, Japan; Department of Anesthesia, Kyoto University Hospital, Kyoto, Japan. 5. Division of Nephrology and Endocrinology, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan. 6. Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshidakonoecho, Sakyo-ku, Kyoto-city, Japan; Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan. Electronic address: kawakami.koji.4e@kyoto-u.ac.jp.
Abstract
AIM: Early enteral nutrition (EN) is recommended for critically ill patients; however, few reports have examined early EN for patients who received targeted temperature management (TTM) after out-of-hospital cardiac arrest (OHCA). We investigated the effectiveness and safety of early EN for patients who received TTM after OHCA. METHODS: We used a nationwide Japanese administrative database to identify OHCA patients who received TTM from April 2008 to March 2017. The primary outcome was 30-day mortality; secondary outcomes were incidences of all-cause infection, pneumonia, and intestinal ischemia. RESULTS: Of the 1932 OHCA patients who received TTM, 1682 met the inclusion criteria. Of these, 294 received early EN within 2 days from the initiation of TTM and 266 propensity-score matched pairs were generated. Cox regression analyses revealed no significant difference in 30-day mortality between groups (hazard ratio (HR): 0.90; 95% confidence interval (95% CI): 0.65-1.25). There was no significant difference in the incidence of all-cause infection (odds ratio (OR): 0.98; 95% CI: 0.66-1.46) or pneumonia (OR: 1.02; 95% CI: 0.68-1.55). Subgroup analyses of patients with a low body mass index (BMI; kg/m2) (< 18.5) revealed a significant decrease of 30-day mortality in the early EN group (HR: 0.30; 95% CI: 0.092-0.97) but no significant difference among patients with a BMI ≥ 18.5 (HR: 1.01; 95% CI: 0.72-1.43). CONCLUSION: Among patients who received TTM after OHCA, there was no significant association between early EN and 30-day mortality; however, early EN could be beneficial for patients with a low BMI.
AIM: Early enteral nutrition (EN) is recommended for critically illpatients; however, few reports have examined early EN for patients who received targeted temperature management (TTM) after out-of-hospital cardiac arrest (OHCA). We investigated the effectiveness and safety of early EN for patients who received TTM after OHCA. METHODS: We used a nationwide Japanese administrative database to identify OHCA patients who received TTM from April 2008 to March 2017. The primary outcome was 30-day mortality; secondary outcomes were incidences of all-cause infection, pneumonia, and intestinal ischemia. RESULTS: Of the 1932 OHCA patients who received TTM, 1682 met the inclusion criteria. Of these, 294 received early EN within 2 days from the initiation of TTM and 266 propensity-score matched pairs were generated. Cox regression analyses revealed no significant difference in 30-day mortality between groups (hazard ratio (HR): 0.90; 95% confidence interval (95% CI): 0.65-1.25). There was no significant difference in the incidence of all-cause infection (odds ratio (OR): 0.98; 95% CI: 0.66-1.46) or pneumonia (OR: 1.02; 95% CI: 0.68-1.55). Subgroup analyses of patients with a low body mass index (BMI; kg/m2) (< 18.5) revealed a significant decrease of 30-day mortality in the early EN group (HR: 0.30; 95% CI: 0.092-0.97) but no significant difference among patients with a BMI ≥ 18.5 (HR: 1.01; 95% CI: 0.72-1.43). CONCLUSION: Among patients who received TTM after OHCA, there was no significant association between early EN and 30-day mortality; however, early EN could be beneficial for patients with a low BMI.
Keywords:
Body mass index; Early enteral nutrition; Malnutrition; Out-of-hospital cardiac arrest; Propensity score matching; Targeted temperature management; Therapeutic hypothermia