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Updated: Dec 1, 2025

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
Clinical Functional Lumen Imaging Probe Testing in Esophageal Disorders: A Need for Better Quality Evidence
1GI Manometry Laboratory, Division of Gastroenterology & Hepatology, Medical College of Wisconsin, Hub for Collaborative Medicine, Milwaukee, Wisconsin, USA.
Functional Lumen Imaging Probe (FLIP) use in esophageal disorders has conditional recommendations and very low evidence quality. More research is needed to confirm its effectiveness and cost-effectiveness compared to existing methods.
Area of Science:
- Gastroenterology
- Medical Technology Assessment
Background:
- Functional Lumen Imaging Probe (FLIP) is a technology for evaluating esophageal disorders.
- Expert consensus is needed to guide FLIP's clinical application.
Purpose of the Study:
- To assess the clinical utility of FLIP for esophageal disorders based on expert evaluation.
- To determine the strength of evidence and recommendations for FLIP use.
Main Methods:
- A Grading of Recommendations Assessment, Development, and Evaluation (GRADE) analysis was performed.
- Expert opinions on FLIP's role in clinical esophagology were gathered.
Main Results:
- Conditional recommendations for FLIP use were made for most indications.
- The quality of evidence supporting FLIP's use was consistently very low.
- FLIP's effectiveness and cost-effectiveness compared to manometry are uncertain.
Conclusions:
- FLIP is an expensive, invasive tool with limited scope.
- Further rigorous studies are required to establish FLIP's clinical value and economic viability.
- Its role alongside or replacing current diagnostic methods remains unclear.
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