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Updated: Jul 9, 2026

Gastrointestinal Motility Monitor (GIMM)
Published on: December 1, 2010
Segmental characteristics of oesophageal peristalsis in paediatric patients
1Department of Pediatrics, University Federico II, Naples, Italy. staiano@cds.unina.it
Insights
High-resolution manometry (HRM) reveals a distinct three-segment pressure pattern in pediatric esophageal peristalsis, similar to adults. This pattern, though slightly varied in neonates, is crucial for interpreting pediatric esophageal function.
Area of Science:
- Gastroenterology
- Pediatric Physiology
- Diagnostic Imaging
Background:
- High-resolution manometry (HRM) in adults reveals normal esophageal peristalsis as a sequential chain of pressure segments.
- Previous studies have not fully characterized these pressure patterns in pediatric populations.
Purpose of the Study:
- To investigate the presence and characteristics of a segmental pressure pattern in pediatric esophageal peristalsis using HRM.
- To compare esophageal pressure patterns across different pediatric age groups (neonates, infants/toddlers, children).
Main Methods:
- High-resolution manometry (HRM) was performed on 40 pediatric subjects aged 1 day to 14 years.
- Analysis focused on identifying and locating sequential pressure segments and inter-segmental troughs along the esophagus.
Main Results:
- A consistent three-segment pressure pattern was identified in pediatric subjects, analogous to adults.
- The third pressure trough was located significantly further from the lower esophageal sphincter in neonates compared to older children.
- The presence of all three segments was less frequent in neonates, particularly the proximal and distal segments.
Conclusions:
- HRM in pediatric patients demonstrates a distinctive chain of pressure events characterizing esophageal peristalsis from neonates to children.
- The segmental nature of esophageal peristalsis should be considered in manometric investigations across all pediatric age groups.
- Understanding these patterns is vital for pharmacological testing and evaluating clearance mechanisms in children.
Abstract:
High-resolution manometry (HRM) in adults identifies a sequential chain of pressure segments that together form normal oesophageal peristalsis. HRM was performed in 40 neonates, infants/toddlers and children (age 1 day-14 years) to see if a similar segmental pattern could be identified in paediatric subjects. A chain of three pressure segments was found with inter-segmental troughs at 27.4 +/- 1.1%, 62.6 +/- 1.3% and 94.9 +/- 0.8% oesophageal length. The first and second pressure troughs were similarly distributed along the oesophagus across age groups; the third was 7.6-8.9% oesophageal length further from the lower oesophageal sphincter in neonates (P < 0.05 compared with other age groups). There were no significant differences in trough locations between subjects with or without oesophageal disease, controlling for age. Consistent presence of all three segments was less common in neonates, primarily because of fewer swallows demonstrating the first (proximal) and third (distal) segments compared with children. HRM in paediatric patients demonstrates, from neonates to children, the distinctive chain of pressure events that also characterizes oesophageal peristalsis in adults. The segmental character to oesophageal peristalsis should be taken into consideration in manometric investigation of all age groups - for example, in testing pharmacological responses and evaluating clearance mechanisms.
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