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Updated: Jun 11, 2026

Simultaneous Laryngopharyngeal and Conventional Esophageal pH Monitoring
Published on: December 14, 2020
Technical problems produced by the Bravo pH test in nonerosive reflux disease patients
Andrés de Hoyos1, Edgar Alain Esparza
1Department of Gastroenterology, Angeles Del Pedregal Hospital, Camino a Santa Teresa 1055, Consultorio 119, Col. Héroes de Padierna, México City, 10700, México. andehoyos@yahoo.com
Aim:
To evaluate the technical failures of the Bravo pH test in a population with nonerosive gastroesophageal reflux disease.
Methods:
Over the course of a year, we prospectively studied a population of 66 nonerosive reflux disease patients who received a Bravo pH test. The number and frequency of all technical failures were documented, quantified and analyzed.
Results:
A total of 66 patients, with a mean age of 41.7 years, were studied. Technical failures occurred in 15.15% of the sample. The most frequent failures were due to poor data reception (4.5%), early dislodgement (4.5%) and capsule removal (6.1%).
Conclusion:
The Bravo capsule pH test involves a low but non-negligible rate of technical problems, a fact that must always be considered by physicians.
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