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Updated: Aug 9, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
[Gastric acid reflux and reflux esophagitis in children]
Mi-zu Jiang1, Tian-lin Wang, Xue-lian Zhou
1Department of Gastroenterology, Children's Hospital, Zhejiang Universtiy School of Medicine, Hangzhou 310003, China.
Insights
Gastric acid reflux is significant in pediatric reflux esophagitis (RE), but not the sole cause. The severity of acid reflux doesn't always correlate with RE severity, highlighting the importance of gastroscopy for diagnosis.
Area of Science:
- Pediatric Gastroenterology
- Gastrointestinal Motility Disorders
- Esophageal Physiology
Background:
- Reflux esophagitis (RE) is a common condition in children, often associated with gastroesophageal reflux (GER).
- Understanding the role of gastric acid reflux in the pathogenesis of RE is crucial for effective management.
- Previous studies have explored the link between acid reflux and RE, but further clarification in pediatric populations is needed.
Purpose of the Study:
- To investigate the role of gastric acid reflux in the development of reflux esophagitis (RE) in children.
- To analyze the relationship between acid reflux parameters and the severity of RE.
- To determine the diagnostic importance of gastroscopy in children with reflux symptoms.
Main Methods:
- A study involving 180 children presenting with vomiting.
- Utilized 24-hour esophageal pH monitoring and gastroscopy to assess acid reflux and esophageal status.
- Compared acid reflux parameters between children with RE, non-esophagitis (NE), and non-erosive reflux disease (NERD).
Main Results:
- Reflux esophagitis was diagnosed in 65 of 180 children.
- The positive rate of acid reflux was significantly higher in the RE group (58.5%) compared to the NE group (42.6%).
- Acid reflux parameters did not consistently correlate with the severity of RE (grades I-III).
Conclusions:
- Gastric acid reflux plays a significant role in pediatric RE but is not the sole contributing factor.
- The degree of acid reflux does not directly correspond to the severity of RE.
- Gastroscopy is essential for diagnosing and evaluating reflux symptoms in children.
Objective:
To evaluate the significance of gastric acid reflux in children with reflux esophagitis (RE).
Methods:
Twenty-four-hour esophageal pH monitoring and gastroscopy were performed in 180 children suffered from vomiting. The relationship between RE, non-esophagitis (NE), non-erosive reflux disease (NERD) and gastroesophageal reflux (GER) was analyzed.
Results:
Sixty-five of the 180 patients were confirmed as having RE by endoscopy. Among them, the number of cases with grades I, II and III RE according to the diagnostic criteria by endoscopy was 37, 19 and 9 cases, respectively, while the other 115 cases were diagnosed as NE. The positive rate of acid reflux in RE group was 58.5% (38/65), while it was 42.6% (49/115) in NE group (chi(2) = 4.179, P < 0.05). All parameters of acid reflux in RE group except for the episode of reflux and the number of reflux longer than 5 min were significantly higher than those in NE group. None of the parameters of acid reflux except for Boix-Ochoa score in grade III RE patients was significantly higher than that in both grade II and grade I RE cases. However, the difference in acid reflux parameter between grade I and grade II RE patients had not reached statistical significance. The results also showed that the positive rate of pathological acid reflux was 48.3% (87/180). Among them, 38 cases were RE, while other 49 cases were NERD. The difference in acid reflux between these two groups was not significant.
Conclusions:
Gastric acid reflux may play a major role in the development of RE in children, but may not be a sole pathogenic factor. The degree of acid reflux is not closely correspondent to the severity of RE. Acid reflux may not completely contribute to RE. Gastroscopy is very important for patients with reflux symptom.
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