Role of electrogastrography in detecting motility disorders in children affected by chronic intestinal pseudo-obstruction and Crohn's disease.

Gastrointestinal motility disorders are frequently found in several pathologies. The aim of this study was to assess, by means of electrogastrography, the presence of gastrointestinal motility abnormalities in children affected by Crohn's disease (CD) or Chronic Intestinal Pseudo-Obstruction (CIPO). Patients and Methods. We studied 34 subjects; 20 control subjects (M = 15, mean age = 10 +/- 3.5 yrs), 8 patients (M = 4, mean age = 18 +/- 7 yrs) with Crohn's disease in a quiescent phase and 6 patients (M = 6, mean age = 10 +/- 3.5 yrs) with Chronic Intestinal Pseudo-Obstruction. Results. Analysis of gastric electrical activity (GEA) parameters demonstrated that in the control group physiological post-prandial changes are represented by an increase of 3 Cycles Per Minute (3 CPM) activity, Period Dominant Power (PDP) and Period Dominant Frequency (PDF) and by the reduction of bradygastria. Crohn patients showed an insignificant increase of 3 CPM and PDP; CIPO patients showed an abnormal variation of 3 CPM, PDP and post-prandial bradygastria. Moreover, CD patients showed a significant difference in post-prandial values of PDP compared to normal subjects. CIPO patients revealed a significant difference in the values of either preprandial PDF with tachygastria or the post-prandial value of 3 CPM, compared to normal subjects. Conclusions. EEG is a non-invasive method to study gut motility related to GEA alterations present in CIPO as well as in CD patients.

Preliminary report of electrogastrography in pediatric gastroresection: can it be predictive of alteration of gastric motility?

BACKGROUND/PURPOSE: Gastric resection is an infrequent surgical procedure in childhood. However, the use of the stomach for bladder augmentation and substitution is well documented. Partial gastrectomy performed in gastrocystoplasty (GCP) involves the greater curvature of the stomach, the same area in which gastric pace-maker cells are known to be placed. The aim of this study was to assess, by electrogastrography (EGG), if subtotal gastric resection can alter gastric motility in children submitted to partial gastrectomy for GCP. METHODS: Gastric electrical activity (GEA) was evaluated in 25 children using EGG: 10 patients (4 boys, 6 girls; mean age, 11.6 years) previously submitted to GCP, and 15 normal subjects (12 boys, 3 girls; mean age, 8.62 +/- 2.77 years) as controls. All patients were submitted to cutaneous EGG; recording GEA for 30 minutes before and after a standard test meal. The percentage of 3 cycles per minute (3CPM), bradygastria, tachygastria, DFIC (dominant frequency instability coefficient), DPIC (dominant power instability coefficient), PDP (period dominant power), PDF (period dominant frequency) were recorded and analyzed using Wilcoxon matched-pair test. Data were considered statistically significant if P <.05. RESULTS: Normal subjects as well as operated patients showed a statistically significant difference in bradygastria (P =.05), PDP and PDF (P =.05) percentage, comparing pre versus postprandial period. In the normal group, 3CPM (P =.0012) and DFIC (P =.0008) were statistically different between the pre- and postprandial period. Patients who underwent GCP did not show any statistically significant difference in 3CPM and DFIC pre- and postprandial. CONCLUSIONS: In normal subjects, GEA showed a complete variation after the meal, whereas in operated patients GEA was impaired and only partially modified after the meal. This observation suggests that in patients with gastric resection, adaptation of the stomach to food ingestion is present but incomplete with respect to normal subjects; it can be caused by surgical removal of the pace-maker cells of the greater curvature. For this reason a follow-up analysis of gastric function is recommended for all patients undergoing GCP.

PEGS in children: nursing considerations.

The nursing care of children with a percutaneous endoscopic gastrostomy (PEG) means caring for the whole of the child with a PEG. Even in the highly technical and specialized field of PEG, the main themes that characterize pediatric nursing are used as a reference guide (Dall'Oglio, 1996).