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Research Project: Microbiota and Nutritional Health

Location: Children's Nutrition Research Center

Title: Gastric accommodation: Physiology, diagnostic modalities, clinical relevance, and therapies

item FEBO-RODRIQUEZ, LIZ - University Of Miami
item CHUMPITAZI, BRUNO - Children'S Nutrition Research Center (CNRC)
item SHER, ANDREW - Texas Children'S Hospital
item SHULMAN, ROBERT - Children'S Nutrition Research Center (CNRC)

Submitted to: Neurogastroenterology & Motility
Publication Type: Review Article
Publication Acceptance Date: 5/31/2021
Publication Date: 8/1/2021
Citation: Febo-Rodriquez, L., Chumpitazi, B.P., Sher, A.C., Shulman, R.J. 2021. Gastric accommodation: Physiology, diagnostic modalities, clinical relevance, and therapies. Neurogastroenterology & Motility. 33(12). Article e14213.

Interpretive Summary:

Technical Abstract: Gastric accommodation is an essential gastric motor function which occurs following ingestion of a meal. Impaired gastric fundic accommodation (IFA) is associated with dyspeptic symptoms. Gastric accommodation is mediated by the vagal pathway with several important physiologic factors such as duodenal nutrient feedback playing a significant role. IFA has been described as a pathophysiologic factor in several gastrointestinal disorders including functional dyspepsia, diabetic gastropathy, post-Nissen fundoplication, postsurgical gastrectomy, and rumination syndrome. Modalities for gastric accommodation assessment include gastric barostat, intragastric meal distribution via scintigraphy, drinking tests (eg, water load), SPECT, MRI, 2D and 3D ultrasound, and intragastric high-resolution manometry. Several treatment options including sumatriptan, buspirone, tandospirone, ondansetron, and acotiamide may improve symptoms by increasing post-meal gastric volume. Our aim is to provide an overview of the physiology, diagnostic modalities, and therapies for IFA. A literature search was conducted on PubMed, Google Scholar, and other sources to identify relevant studies available until December 2020. Gastric accommodation is an important gastric motor function which if impaired, is associated with several upper gastrointestinal disorders. There are an increasing number of gastric accommodation testing modalities; however, each has facets which warrant consideration. Evidence regarding potentially effective therapies for IFA is growing.