title: Technical problems produced by the Bravo pH test in nonerosive reflux disease patients.
abstract: OBJECTIVE
  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%).
  
  
  CONCLUSIONS
  The Bravo capsule pH test involves a low but non-negligible rate of technical problems, a fact that must always be considered by physicians.
authors.affiliation: Department of Gastroenterology, Angeles Del Pedregal Hospital, Camino a Santa Teresa 1055, Consultorio 119, Col. Héroes de Padierna, México City, 10700, México. andehoyos@yahoo.com
authors.forename: Andrés
authors.initials: A
authors.lastname: de Hoyos
authors.forename: Edgar Alain
authors.initials: EA
authors.lastname: Esparza
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004868:Equipment Failure; D019544:Equipment Failure Analysis; D050782:Esophageal pH Monitoring / Q000295:instrumentation*; D004945:Esophagoscopy; D005260:Female; D005764:Gastroesophageal Reflux / Q000503:physiopathology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D055815:Young Adult