GASTRIC PERISTALSIS CONTROL BY MONO SITU ELECTRICAL-STIMULATION - A PRELIMINARY-STUDY

Background: This study was initiated 3 years ago when antral gastric e lectric stimulation was first used successfully to reduce free feeding in swine. Methods: Three swine weighing 45 kg each were implanted wit h one subserosal bipolar electrode, positioned in the antrum, close to the pylorus, at the anterior side of the lesser gastric curvature. Re sults: During 4 h of kethamine anaesthesia we paced the stomach by var ious patterns of electrical stimulation and obtained both forward and backward peristalsis, as well as gastric paresis. Conclusion: Variatio ns in antral electrical stimulation produce characteristic patterns of forward and reverse peristalsis.