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Updated: Jun 11, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
Diagnostic modalities for gastro-esophageal reflux in infantile wheezers
Soumya Patra1, Varinder Singh, Jagdish Chandra
1Department of Pediatrics, Lady Hardinge Medical College & Kalawati Saran Children's Hospital, New Delhi, India. dr_soumyapatra@rediffmail.com
Insights
Gastro-intestinal (GI) scintiscan demonstrates higher sensitivity and specificity than 24-h pH study for diagnosing gastro-esophageal reflux (GER) in infantile wheezers. GI scintiscan is recommended as a primary diagnostic tool for GER in young children with wheezing symptoms.
Area of Science:
- Pediatric Gastroenterology
- Diagnostic Imaging
- Respiratory Medicine
Background:
- Gastro-esophageal reflux (GER) is a common concern in infantile wheezers.
- Accurate diagnosis of GER is crucial for effective management of wheezing in infants.
- Comparing diagnostic modalities for GER is essential for clinical practice.
Purpose of the Study:
- To compare the diagnostic accuracy of Gastro-intestinal (GI) scintiscan and 24-h pH study in detecting GER among infantile wheezers.
- To evaluate the utility of these diagnostic tools in children under two years of age.
- To determine the preferred diagnostic method for GER in this population.
Main Methods:
- A study involving 52 children under two years of age with wheezing symptoms.
- Both GI scintiscan and 24-h pH study were performed on all participants to assess for GER.
- Diagnostic performance was evaluated against clinical history and response to anti-reflux treatment.
Main Results:
- Gastro-esophageal reflux (GER) was detected in approximately 45% of the studied infantile wheezers.
- The highest agreement between GI scintiscan and 24-h pH study was observed in infants aged 7-12 months (κ = 0.591).
- GI scintiscan exhibited superior sensitivity and specificity compared to the 24-h pH study (p ≤ .001).
Conclusions:
- Both GER scan and 24-h pH study provide complementary information for diagnosing GER in infantile wheezers.
- GI scintiscan is a more effective single diagnostic test for GER in early wheezers when both methods are available.
- The findings support the use of GI scintiscan as a primary diagnostic tool for GER in this pediatric population.
Objective:
To compare the diagnostic value of Gastro-intestinal (GI) scintiscan with 24-h pH study in detecting gastro-esophageal reflux (GER) among infantile wheezers.
Subjects:
Fifty-two children < 2 years of age.
Methods:
All patients, irrespective of symptom underwent study to evaluate for GER.
Results:
GER studies were positive in almost 45% of cases. The agreement between positivity of these two tests is best among children between 7 and 12 months of age (κ = 0.591, p = 0.002). Overall GI scintiscan was a better test with higher sensitivity and specificity as compared to 24-h pH study when compared with the history suggestive of reflux and clinical response with anti-reflux treatment as standard (p ≤ .001).
Conclusion:
Both GER scan and 24-h pH study are complimentary to each other, however, if both the tests are available then GI scintiscan is better as a single test for GER in these early wheezers.
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