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Design of a closed-loop gastric pacemaker for modulating dysrhythmic conduction patterns via extracellular

L Wang, A Malik, P S Roop

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 6, 2020
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    Summary
    This summary is machine-generated.

    This study introduces a closed-loop Gastric Electrical Stimulator (GES) model that senses and modulates bio-electric slow waves, improving treatment for motility disorders like gastroparesis.

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    Area of Science:

    • Biomedical Engineering
    • Computational Physiology
    • Gastroenterology

    Background:

    • Gastric Electrical Stimulators (GES) offer a potential treatment for severe motility disorders like gastroparesis.
    • Current GES devices lack closed-loop functionality, limiting their effectiveness in managing dysrhythmic bio-electric patterns.

    Purpose of the Study:

    • To design and model a closed-loop Gastric Electrical Stimulator (GES) integrated with the Interstitial Cells of Cajal (ICC) network.
    • To enhance an existing ICC network model with an extracellular potential generation model for precise slow wave propagation analysis.

    Main Methods:

    • Developed a novel extracellular potential generation model to simulate ICC network activity.
    • Integrated the model with a GES system capable of sensing extracellular potentials.
    • Implemented algorithms for detecting bradygastric patterns and modulating electrical stimulation.

    Main Results:

    • The enhanced ICC network model accurately captures slow wave propagation timing.
    • The closed-loop GES system successfully detects dysrhythmic patterns (bradygastria).
    • The system demonstrates the ability to modulate ICC network activity for normal conduction.

    Conclusions:

    • The proposed closed-loop GES model offers a more effective approach to treating gastroparesis and other motility disorders.
    • The design prioritizes practicality for future validation and clinical implementation.
    • This system represents a significant advancement over traditional open-loop GES devices.