Related Experiment Video
Updated: Jun 2, 2026

Three-Dimensional Cell Culture Models to Investigate the Epithelial Barrier in Eosinophilic Esophagitis
Published on: May 10, 2024
[Heterogeneity of chronic esophagitis in childhood]
Insights
Chronic esophagitis in children has diverse causes, often involving allergies and chronic infections like herpes simplex virus (HSV), cytomegalovirus (CMV), and Epstein-Barr virus (EBV). Gastroesophageal reflux disease (GERD) also contributes, with combined factors worsening esophageal damage.
Area of Science:
- Pediatric Gastroenterology
- Immunology
- Infectious Diseases
Context:
- Chronic esophagitis in children presents heterogeneous etiologies.
- A study involved 83 pediatric patients (ages 3-17) with histologically confirmed chronic esophagitis.
- Comorbidities included food/respiratory allergies in 58 patients and chronic infections in 92.8%.
Purpose:
- To investigate the diverse etiological factors contributing to chronic esophagitis in children.
- To differentiate the clinical and morphological characteristics of esophagitis related to allergies, GERD, and chronic viral infections.
- To assess the impact of combined etiological factors on esophageal lesion severity.
Summary:
- Endoscopic, morphological, and immunohistochemical analyses identified chronic infections (HSV, CMV, EBV) in most patients.
- Gastroesophageal reflux disease (GERD) was diagnosed in 33 children, often with gastroduodenal pathology and increased gastric secretion.
- Allergic esophagitis showed subtle manifestations with lower inflammatory activity compared to GERD and infections, which presented with more erosive changes and higher inflammation.
Impact:
- Identifies chronic infections as a major, often overlooked, cause of pediatric chronic esophagitis.
- Highlights the distinct pathological features of different esophagitis etiologies in children.
- Demonstrates that combined etiological factors lead to more severe esophageal damage, informing targeted treatment strategies.
Abstract:
Chronic esophagitis in children etiologically are heterogeneous. Was observed 83 patients aged from 3 to 17 years with histologically defined chronic esophagitis, 58 of them suffered from food and respiratory allergies. All children underwented endoscopy, morphological and immunohistochemical study of the esophagus biopsies with the definition IgE, IgA herpes simplex virus (HSV), cytomegalovirus (CMV) and Epstein - Barr virus (EBV) in the mucous membrane. The presence of chronic infection was established in 77 out of 83 (92.8%) children. All the patients underwented daily pH meters. GERD was diagnosed in 33 children. GERD was characterized by typical symptoms, combined with gastroduodenal pathology, usually Hp-associated, and increased gastric secretion. Morphologically at 15% of the patients with gastric metaplasia was found moderate inflammation. During examination of patients with allergic esophagitis was neither clinical nor explicit endoscopic manifestations, eosinophilic infiltration was observed in some patients, but inflammatory activity was lower than at GERD and infections. Esophagitis in chronic viral infections was characterized by a higher frequency of erosive changes, higher activity of inflammation. The combination of the three etiological factors were associated with more severe lesions of the esophagus.
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