title: Postprandial improvement of gastric dysrhythmias in patients with type II diabetes: identification of responders and nonresponders.
abstract: Using the technique known as electrogastrography, we studied the postprandial response of gastric myoelectrial activity in subjects with type II diabetes. Seventy-one subjects with type II diabetes underwent 1 hr of fasting electrogastrography recording. HbA1c and fasting serum glucose levels were obtained. Subjects then underwent an additional 2 hr of electrogastrography recording in the post prandial state. Sixty of the 71 patients (85%) had gastric rhythm abnormalities in the fasting state. Forty-six of 71 subjects (65%) responded to the test meal by improving their electrogastrography tracings (responders) while 35% did not respond (nonresponders). The time spent in bradygastria during the fasting state by responders was 26.3+/-12.8% vs 10.9+/-8.5% for nonresponders (P < 0.0001). The percent tachygastria during the fasting state in responders was 19.8+/-13.0%, which was less than nonresponders (38.3+/-29.7%) (P < 0.001). Fasting plasma glucose and HbA1c could not be used to predict the gastric myoelectrical response to meal. In conclusion, gastric rhythm disturbances are common in type II diabetes; there was no correlation between HbA1c levels, age, duration of diabetes, or fasting serum glucose and gastric dysrhythmia in response to meal; two groups of subjects emerged: those who became less dysrhythmic in the post pradial state (responders) and those who did not (non-responders); and fasting bradygastria was associated with responders and fasting tachygastria was associated with nonresponders.
authors.affiliation: Department of Medicine, Cedars-Sinai Medical Center, CSMC Burns and Allen Research Center, Los Angeles, California 90048, USA.
authors.forename: R
authors.initials: R
authors.lastname: Mathur
authors.forename: M
authors.initials: M
authors.lastname: Pimentel
authors.forename: C L
authors.initials: CL
authors.lastname: Sam
authors.forename: J D
authors.initials: JD
authors.lastname: Chen
authors.forename: G G
authors.initials: GG
authors.lastname: Bonorris
authors.forename: P S
authors.initials: PS
authors.lastname: Barnett
authors.forename: H C
authors.initials: HC
authors.lastname: Lin
mesh_terms: D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology*; D004576:Electromyography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016065:Myoelectric Complex, Migrating; D019518:Postprandial Period