Department of Anaesthesia, Analgesia and Intensive Care Medicine, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh.
Department of Biomedical Physics and Technology, University of Dhaka, Dhaka, Bangladesh.
J Med Eng Technol. 2022 Jul;46(5):363-369. doi: 10.1080/03091902.2022.2059116. Epub 2022 May 11.
Nasogastric feeding is commonly used to deliver enteral feed in critically ill patients and several methods are used for assessing the gastric residual volume with limitations. A new approach for gastric emptying time measurement has been developed using Electric Impedance Method (EIM). The study aims to establish whether EIM is useful for measuring gastric emptying during nasogastric feeding compared with nasogastric suction. The pilot study was performed among the patients in the Intensive Care Unit (ICU), Bangladesh, from 2018 to 2019. Enteral feed was given to patients by NG tube. Gastric emptying and Gastric Residual Volume (GRV) were measured using EIM and nasogastric suction tube. Patterns of filling and emptying were almost the same in all subjects but emptying time varied between individuals that correlated well with GRV in 16 patients. Therefore, the study showed that the measurement of gastrc volume by the non-invasive and hazard-free electrical impedance method has a high specificity (90%) and efficacy of 80%. The study also revealed significant changes in gastric emptying time due to different body statuses. EIM seemed to be capable of measuring gastric emptying over time. EIM could become a standard tool for monitoring gastric emptying in patients at risk of gastroparesis.
经鼻胃管喂养常用于为危重症患者提供肠内喂养，但有几种方法用于评估胃残留量，但都存在局限性。一种新的胃排空时间测量方法已使用电阻抗法（EIM）开发。本研究旨在确定与经鼻胃管抽吸相比，EIM 用于测量经鼻胃管喂养时胃排空是否有用。该初步研究于 2018 年至 2019 年在孟加拉国的重症监护病房（ICU）进行。通过 NG 管为患者提供肠内喂养。使用 EIM 和经鼻胃管抽吸管测量胃排空和胃残留量（GRV）。在所有受试者中，充盈和排空模式几乎相同，但排空时间在个体之间有所不同，在 16 名患者中，排空时间与 GRV 相关性较好。因此，该研究表明，非侵入性和无危险的电阻抗方法测量胃容量具有高特异性（90%）和 80%的疗效。该研究还揭示了不同身体状况对胃排空时间的显著影响。EIM 似乎能够随时间测量胃排空。EIM 可能成为监测胃轻瘫风险患者胃排空的标准工具。
