title: Electrogastrography in patients with Chagas' disease.
abstract: Electrogastrograghy (EGG) was performed in 33 patients with Chagas' disease and in 15 healthy volunteers-control group. The EGG was performed in two different periods: in fasting and postprandial. The EGG was submitted to a continuous spectral analysis. The following parameters were evaluated: % dominant frequency in spectral bands: normogastria (2-4 cpm), bradygastria (1-2 cpm), tachygastria (4-10 cpm) and duod/resp (10-15 cpm). EGG was considered normal if normogastria > 65% in both EGG periods. The chagasic group showed % normogastria significantly lower (basal, P < 0.01), % bradygastria (basal, P = 0.01) and % tachygastria (basal and postprandial, P =.001) significantly higher than the control group. EGG was normal in 14/15 (93%) in control group x 16/33 (53%) in chagasic group (P < 0.05). It was concluded that: 1) the prevalence of gastric dysrhythmias was higher in chagasic patients than in comparison to a control group 2) gastric dysrhythmias may be considered one of the abnormalities presented in the chagasic gastropathy.
authors.affiliation: Department of Clinica Medica, Hospital das Clinicas da Universidade Federal de Goiás, Goiânia, Brazil.
authors.forename: Joffre
authors.initials: J
authors.lastname: Rezende Filho
authors.forename: Joffre Marcondes
authors.initials: JM
authors.lastname: De Rezende
authors.forename: José Renan Da Cunha
authors.initials: JR
authors.lastname: Melo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D014355:Chagas Disease / Q000503:physiopathology*; D005215:Fasting / Q000502:physiology; D005260:Female; D005746:Gastric Emptying / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D016065:Myoelectric Complex, Migrating / Q000502:physiology*; D019518:Postprandial Period / Q000502:physiology; D013270:Stomach / Q000503:physiopathology*