Colonic Transit Time and Fecal Impaction in Children and Adolescents With Cystic Fibrosis-associated Constipation.

Background: Constipation is prevalent in pediatric cystic fibrosis (CF) patients and colonic motility has not been studied in this population. In this study, we aimed to evaluate the total and segmental colonic transit time in children and adolescents with CF based on the presence of constipation and radiological fecal impaction.

Methods: In this case series, all patients aged 3 to 20 years of a CF reference center were invited to participate.

THE IMPACT OF SMALL INTESTINAL BACTERIAL OVERGROWTH ON THE GROWTH OF CHILDREN AND ADOLESCENTS.

Objective: To evaluate the association between small intestinal bacterial overgrowth (SIBO) and weight and height impairment in children and adolescents with gastroenterology diseases.

Methods: Observational and retrospective study. All 162 patients aged less than 19 years old who underwent breath test in search of SIBO between 2011 and 2016 were studied.

Intestinal fructose malabsorption is associated with increased lactulose fermentation in the intestinal lumen.

Objective: To study fructose malabsorption in children and adolescents with abdominal pain associated with functional gastrointestinal disorders. As an additional objective, the association between intestinal fructose malabsorption and food intake, including the estimated fructose consumption, weight, height, and lactulose fermentability were also studied.

Methods: The study included 31 patients with abdominal pain (11 with functional dyspepsia, 10 with irritable bowel syndrome, and 10 with functional abdominal pain).

Water Load Test in Childhood Functional Abdominal Pain: No Relation to Food Intake and Nutritional Status.

This cross-sectional study evaluates the relations between the water load test in childhood functional gastrointestinal disorders with food intake and nutritional status. Patients with functional dyspepsia required a lower maximum water intake to produce fullness (n = 11, median = 380 mL) than patients with irritable bowel syndrome (n = 10, median = 695 mL) or functional abdominal pain (n = 10, median = 670 mL) (P < 0.05).

[Knowledge and practice of Brazilian pediatricians concerning gastroesophageal reflux disease in infants].

Objective:: To assess the knowledge and practice of pediatricians about infants with physiological reflux and gastroesophageal reflux disease.

Methods:: 140 pediatricians were interviewed during two scientific events in 2009 and 2010. The questions referred to two clinical cases of infants.

Effects of conventional treatment of chronic functional constipation on total and segmental colonic and orocecal transit times.

Objective: To evaluate the effects of conventional treatment of chronic functional constipation on total and segmental colonic transit times and on orocecal transit time.

Methods: A total of 34 consecutive patients with functional constipation attending a specialized outpatient clinic were included in the study. Total and segmental colonic transit times were assessed using radiopaque markers.

[Esophageal motility studies in cirrhotic patients before and after endoscopic variceal ligation].

Background: To study esophageal motility before and after the endoscopic variceal ligation in cirrhotic patients.

Methods: Twenty-four patients with chronic liver disease assisted at the "Gastrocentro - UNICAMP" in the program of endoscopic variceal ligation were studied (mean age of 49.5 years, 19 males and 5 females).

[Effectiveness of anorectal manometry using the balloon method to identify the inhibitory recto-anal reflex for diagnosis of Hirschsprung's disease].

Objective: To evaluate results of anorectal manometry performed with equipment made in Brazil for the screening of Hirschsprung's disease in children with chronic constipation.

Methods: Results of 372 anorectal manometries performed consecutively in children with chronic constipation were evaluated. The equipment (Proctosystem Viotti) has two channels for pressure registration by the balloon method and is connected to a computer using specific software.

Breath hydrogen test after a bean meal demonstrates delayed oro-cecal transit time in children with chronic constipation.

Objective: To evaluate oro-cecal transit time in children with chronic constipation.

Methods: 34 patients with chronic functional constipation age 3 to 13 years and 15 controls without constipation. Oro-cecal transit time was evaluated using the hydrogen breath test after ingestion of lactulose and after a standard meal of cooked beans.

Breath methane associated with slow colonic transit time in children with chronic constipation.

Objective: This study analyzed the relationship between methane production and colonic transit time in children with chronic constipation.

Methodology: Forty children, from 3 to 13 years of age, suffering from chronic constipation were included. Methane production was defined when the breath methane concentration was greater than 3 ppm.

[Breath methane in children with chronic constipation].

Rationale: Methane is an intestinal gas which may be excreted in the expired air of about 10% of children.

Objective: The aims of this study were to investigate methane production by children with functional chronic constipation and methane concentration in the expired air before and after a bowel movement induced by a phosphate enema.

Methods: Seventy-five patients with functional chronic constipation aged from 3 to 13 years were studied.