Electrogastrogram basics
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An electrogastrogram (EGG) is a graphic representation of electrical signals in the stomach that control muscle contractions, similar to an electrocardiogram. It helps diagnose motility disorders by measuring the frequency of contractions in different parts of the gastrointestinal tract, aiding in the evaluation of conditions like gastroparesis and functional dyspepsia. Key metrics include bradygastria and tachygastria, which indicate abnormal rates of stomach electrical activity.
Electrogastrogram basics
- 1. ELECTROGASTROGRAM Prepared by Atheena Pandian
- 2. It is a graphic produced by an electrogastrograph, which records the electrical signals that travel through the stomach muscles and control the muscles' contractions. ELECTROGASTROGRAM (EGG)
- 4. An electrogastrogram and a gastroenterogram are similar in principle to an electrocardiogram (ECG) in that sensors on the skin detect electrical signals indicative of muscular activity within. Where the electrocardiogram detects muscular activity in various regions of the heart, the electrogastrogram detects the wave-like contractions of the stomach (peristalsis). DESCRIPTION OF EGG
- 5. Motility of gastrointestinal tract (GI tract) results from coordinated contractions of smooth muscle, which in turn derive from two basic patterns of electrical activity across the membranes of smooth muscle cells—slow waves and action potentials. PROCESS OF EGG
- 10. A bradygastria is defined, how decreased rate of electrical activity in the stomach, as less than 2 cycles per minute for at least 1 minute A tachygastria is defined, how increased rate of electrical activity in the stomach, as more than 4 cycles per minute for at least 1 minute. CONDITIONS OF EGG
- 11. stomach – about 3 waves in a minute duodenum – about 12 waves in a minute jejunum – about 11 waves in a minute. ileum – about 8 waves in a minute rectum – about 17 waves in a minute They set the maximum frequency at which the muscle can contract WAVES OF EGG
- 12. Electrical control activity (ECA) and Electrical response activity (ERA) The electrical activity of the GI tract can be subdivided into two categories: 1. 2. CATAGORIES
- 13. RANGE OF EGG
- 14. Electrogastrography or gastroenterography used when a patient is suspected of having a motility disorder, which can be shown, as recurrent nausea and vomiting, signs that the stomach is not emptying food normally The clinical use of electrogastrography has been most widely evaluated in patients with gastroparesis and functional dyspepsia. CLINICAL APPLICATIONS
- 15. Good Luck