Human stomach has a recordable mechanical activity at a rate of about three cycles/minute

The European Journal of Surgery = Acta Chirurgica
J M Collard, R Romagnoli

Abstract

To discover whether the human stomach contracts every 20 seconds or not. Manometric study. Teaching hospital, Belgium. 10 healthy volunteers, and 31 patients who had had the whole stomach denervated and pulled up to the neck for oesophageal replacement. Analysis of selected strips of manometric tracings obtained with intraluminal perfused catheters. 13 patients were given erythromycin (1 g/day) by mouth. Estimation of the rate and frequency distribution according to amplitude of intraluminal pressure waves with the vertical axis of the tracings scaled up to reflect contractions within the gastric wall. Microwaves (<9 mmHg) that came in between conventional macrowaves (>9 mmHg) were found, showing that the human stomach undergoes mechanical activity (amplitude ranging from 0.2-310 mmHg) at the pacemaker's rate which varied from 2.43 to 3.60 cycles/minute from one subject to another. Phase I of the interdigestive motor complex contained microwaves only, phase II and the fed pattern consisted of a mixture of microwaves and macrowaves, and phase III contained macrowaves only. The fasting rate of mechanical activity was lower in patients who were given erythromycin than in those not given erythromycin (p = 0.003) and in healthy volu...Continue Reading

Citations

Jul 3, 2004·Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus·J-M CollardC Gutschow
Aug 22, 2006·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·L A BradshawW O Richards
Dec 19, 2007·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·A B AhmedK Matre
Feb 6, 2007·Sleep Medicine·Peter R EastwoodDavid R Hillman
Mar 9, 2005·World Journal of Gastroenterology : WJG·Ferenc IzbékiAron Altorjay
Dec 20, 2008·American Journal of Physiology. Gastrointestinal and Liver Physiology·Michael HockeAndreas Stallmach
Jul 18, 2006·Acta Veterinaria Hungarica·J SchnoorJ Silny

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