• Journal of critical care · Feb 2025

    Quantitative visualization of gastrointestinal motility in critically ill patients using a non-invasive single-channel electro amplifier: A prospective observational cohort feasibility study.

    • Gen Aikawa, Tetsuya Hoshino, Hideaki Sakuramoto, Akira Ouchi, Mitsuki Ikeda, Misaki Kotani, Saiko Okamoto, Yuki Enomoto, Nobutake Shimojo, and Yoshiaki Inoue.
    • College of Nursing, Kanto Gakuin University, Yokohama, Kanagawa, Japan; Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan. Electronic address: gen-aikawa@umin.ac.jp.
    • J Crit Care. 2025 Feb 1; 87: 155031155031.

    BackgroundThis study aimed to evaluate the feasibility of using electrogastrography (EGG)/electroenterography (EEnG) to quantitatively visualize gastrointestinal (GI) motor function in critically ill patients.MethodsEGG/EEnG were performed at baseline and before and after nutrition in critically ill patients with mechanical ventilation. Enteral nutrition varied in content. Dominant frequency (DF), dominant power (DP), and power ratio (PR) were calculated and compared with those from healthy controls (previous study; n = 50).ResultsData from 20 % of patients were unstable and could not be analyzed. Of the 54 patients analyzed, 41 were on enteral nutrition, and their age and body mass index differed from controls. Gastric DF differed significantly between critically ill patients and controls (p < 0.001). No significant difference was noted in gastric log10 DP between pre- and post-prandial periods in critically ill patients (2.79 vs 2.86, p = 0.328), but controls showed a significant increase (3.04 vs 3.22, p = 0.009). Critically ill patients had lower gastric log10 DP than controls (pre-prandial p = 0.038; post-prandial p = 0.003). In the small intestine, log10 DP did not differ significantly between pre- and post-prandial periods in critically ill patients (1.45 vs 1.52, p = 0.181), but controls showed a significant increase (1.70 vs 1.86, p < 0.001). Critically ill patients had lower small intestinal log10 DP than controls (pre-prandial p = 0.004; post-prandial p < 0.001). PR was inferior in critically ill patients than in controls.ConclusionsEGG/EEnG could enable quantitative visualization of GI motor function in critically ill patients. Larger studies can determine the association of GI symptoms with risk factors and prognostic factors.Copyright © 2024. Published by Elsevier Inc.

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