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Published on: April 13, 2010
[Gastroesophageal reflux and bronchial asthma: pH-metric patterns in non allergic children]
M Cinquetti1, L A Boer, G Cracco
1Divisione di Pediatria dell'Ospedale Maggiore, Verona, Italia.
Insights
Gastroesophageal reflux (GER) in children with asthma was studied using pH monitoring. The total number of reflux events over 24 hours may help identify asthma in children without allergies.
Area of Science:
- Pediatric Pulmonology
- Gastroenterology
- Allergy and Immunology
Background:
- Gastroesophageal reflux (GER) is a potential factor in pediatric asthma.
- Understanding GER patterns in asthmatic children without allergies is crucial for diagnosis.
Purpose of the Study:
- To investigate the characteristics of GER in asthmatic children without allergies using 24-hour intraesophageal pH monitoring.
- To identify specific pH monitoring parameters that can differentiate asthmatic children from healthy controls.
Main Methods:
- Computerized 24-hour intraesophageal pH monitoring was performed on 27 asthmatic children without allergies and 10 healthy controls.
- Asthmatic children were categorized into three groups based on Reflux Index (R.I.) and positional GER patterns.
- Data analysis focused on the total number of refluxes and their distribution in relation to posture.
Main Results:
- Group A, characterized by a higher R.I. and more GER in the standing position, was the most frequent among asthmatic children.
- No significant difference in the total number of refluxes was found between asthmatic groups (A, B, C).
- A significant prevalence of the total number of refluxes was observed in Group C compared to the control group (D).
Conclusions:
- The total number of refluxes detected by 24-hour pH monitoring appears to be a significant parameter for characterizing children with bronchial asthma and without allergies.
- Positional GER patterns may further refine the understanding of GER in pediatric asthma.
- This study suggests pH monitoring can aid in identifying GER-related asthma in non-allergic children.
Abstract:
The presence of gastroesophageal reflux (GER) was studied, by computerized 24 hours intraesophageal pH monitoring, in 27 asthmatic children (16 M - 11 F; mean age 75.04 months) without allergy and in absence of medical treatment for at least ten days. Patient were divided in 3 groups: Group A (11 cases): subjects with Reflux Index (R.I. = percentage of time pH < 4) more than 4.2% and with GER percentage of time in standing position > supine position (p < 0.001). Group B (6 cases): subjects with R.I. more than 4.2% and with GER percentage of time in standing position < supine position (p = 0.05). Group C (10 cases): subjects with R.I. less than 4.2%. A group D (10 cases): normal children considered as control. The group A ("daily refluxes") resulted as the most numerous, in contrast to the studies up to now followed. The total number of refluxes resulted with no significant difference in groups A, B and C, but a significant prevalence of this number was noted in the group C against group D. Therefore, the parameter "Total number of refluxes in 24 hours" characterizes in our opinion, on the pH monitoring, children with bronchial asthma and without allergy.
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