Background Gastric Alimetry is a new diagnostic tool using non-invasive gastric electrical mapping and symptom logging to identify patient subgroups. This study aimed to propose an initial framework for Gastric Alimetry implementation in the routine management of gastroduodenal disorders, and assess its impact on diagnosis and management.

Methods Gastric Alimetry using standard tests (30-min fasted, ~480kCal meal, followed by 4-hr postprandial recording with concurrent symptom logging) was applied to patients presenting with gastroduodenal symptoms.

Results Overall, 50 patients were evaluated with Gastric Alimetry. The test aided management decisions in 78% of patients (39/50) and aided a change in diagnosis in 40% (20/50), predominantly from a motility disorder to disorders of gut-brain interaction (DGBI). Changes in invasive nutritional support occurred in 18% (9/50).

Conclusion Gastric Alimetry impacted care in most patients in this first series. Further work to inform clinical utility is now a priority.

The authors have declared no competing interest.

The Health Research Council of New Zealand funded this work

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The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

Auckland Health Research Ethics Committee of University of AUckland gave ethical approval for this work

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Conflicts of interest: The authors have no conflicts of interest to declare.

Funding statement: This project was supported by the Health Research Council of New Zealand.

Data availability statement: Data used for analysis will be made available upon reasonable request, conditional on ethical approvals.

All data produced in the present study are available upon reasonable request to the authors