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A functional study of caustic strictures of the esophagus in children
E A L Da-Costa-Pinto1, T K Dorsa, A Altimani
1Departamento de Pediatria, Faculdade de Ciências Médicas, Universidade Estadual de CampinasCampinas, SP, Brasil. elicostapinto@uol.com.br
Insights
Children with caustic strictures exhibit abnormal esophageal motility, impacting swallowing function. These esophageal motor function abnormalities are linked to the severity of the stricture and scarring.
Area of Science:
- Pediatric Gastroenterology
- Gastrointestinal Motility Disorders
Background:
- Caustic strictures in children can lead to significant esophageal dysfunction.
- Understanding the underlying motor abnormalities is crucial for managing dysphagia.
Purpose of the Study:
- To evaluate esophageal motor function in pediatric patients with caustic strictures.
- To correlate manometric and scintigraphic findings with clinical symptoms.
Main Methods:
- Esophageal manometry using a water-infusion system.
- Radionuclide transit studies with 99mTc pertechnetate.
- Comparison with a control group of healthy children.
Main Results:
- Patients with caustic strictures showed non-peristaltic, low-amplitude, long-duration esophageal waves.
- Significantly lower mean wave amplitude and longer mean wave duration were observed compared to controls.
- Delayed esophageal transit and an association between dysphagia and manometry/scintigraphy abnormalities were noted.
Conclusions:
- Dysphagia in pediatric caustic strictures is primarily caused by esophageal motility abnormalities.
- These abnormalities are closely related to the extent of esophageal scarring.
Abstract:
The objective of the present study was to assess esophageal motor function in 21 children (7.5 +/- 2.9 years) with caustic strictures. Esophageal manometry was performed using a water-infusion system interfaced with a polygraph and displayed on a computer screen. The data were compared with those obtained from 9 healthy children. Radionuclide transit was determined by studying deglutition of a single bolus of 99mTc pertechnetate in 10 ml of water. Non-peristaltic low-amplitude and long-duration waves were the most common findings detected in patients with strictures longer than 20% of esophageal length (N = 11). Compared with the control group, these patients presented lower mean amplitude and longer mean duration of waves (24.4 +/- 11.2 vs 97.9 +/- 23.7 mmHg, P < 0.05, and 6.7 +/- 2.4 vs 1.6 +/- 0.1 s, P < 0.05, respectively). Six patients presented low-amplitude waves just below the constricted site. Ten children presented delayed esophageal transit. There was an association between dysphagia and abnormalities on manometry (P = 0.02) and between symptoms and scintigraphy data (P = 0.01). Dysphagia in caustic strictures is due to esophageal motility abnormalities, which are closely related to the scarred segment.
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