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[Myoelectric gastric activity using cutaneous electrogastrography--electrogastrogram]

J Rezende-Filho1

  • 1Serviço de Gastroenterologia do Hospital, Universidade Federal de Goiás, Goiânia, GO.

Arquivos De Gastroenterologia
|April 1, 1995
PubMed
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Digestive diseases and sciences·1989
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Electrogastrography (EGG) is a reliable, non-invasive tool for assessing gastric myoelectric activity. This study found EGG effectively identifies gastric dysrhythmias in patients with motor disorders, including functional dyspepsia and diabetes mellitus.

Area of Science:

  • Gastroenterology
  • Medical Devices
  • Physiology

Background:

  • Gastric motor disorders are frequently associated with abnormal gastric myoelectric activity.
  • Accurate assessment of gastric motility is crucial for diagnosing and managing related conditions.

Purpose of the Study:

  • To evaluate the efficacy of cutaneous electrogastrography (EGG) in identifying gastric dysrhythmias.
  • To assess EGG's reliability in patients with various gastric motor disorders and healthy volunteers.

Main Methods:

  • Cutaneous electrogastrography was performed on 52 participants (9 healthy, 43 patients) including those with functional dyspepsia, diabetes mellitus, and nausea/vomiting.
  • EGG signals were recorded pre- and post-prandially, analyzed for dominant frequency and power, and categorized into four bands: bradygastria, normal, tachygastria, and duodeno-respiratory.

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  • Gastric dysrhythmias were defined as abnormal EGG activity exceeding 35% of the recording time.

    • Main Results:

    • EGG was normal in all healthy volunteers and patients with pyloric stenosis.
    • Gastric dysrhythmias were prevalent in patients with functional dyspepsia (11/24), diabetes mellitus (6/9), and nausea/vomiting (1/5).
    • Persistent tachygastria was observed in several patients, notably those with gastric distension/atony and post-vagotomy gastroparesis.

    Conclusions:

    • Cutaneous electrogastrography is a non-invasive, well-tolerated, and reliable method for recording gastric myoelectric activity.
    • EGG can effectively detect both transient and persistent gastric dysrhythmias in patients with symptomatic gastric motility issues.
    • Findings support EGG's utility in the clinical evaluation of patients presenting with chronic dyspeptic symptoms or acute nausea.