Placement of the Bravo wireless pH monitoring capsule onto the gastric wall under endoscopic guidance

A Novel Placement Method of the Bravo Wireless pH Monitoring Capsule for Measuring Intragastric pH

“…Use of the Bravo capsule in humans intragastric pH monitoring, fixed by mucosal suction, has been reported, and the Bravo capsules remained on the gastric wall for over 48 h in 82% of cases [16]. Despite this finding, the Bravo capsules frequently dislodged before 48 h in our experience.…”

“…Monitoring intragastric pH using the Bravo capsule was recently introduced [16]. It is promising because the Bravo capsule can overcome imperfections of the conventional catheter for pH monitoring, such as nasopharyngeal discomfort, activity limitation, diet restriction, and the catheter instability in an acidic environment [9-14, 16, 20].…”

“…The delivery system of the Bravo pH capsule is available only for esophageal pH monitoring. In a previous study, the Bravo capsule placed on the gastric corpus by the suction method with the delivery system and measured intragastric pH successfully in 9 of 11 subjects over 48 h [16]. However, early dislodgement of the Bravo capsule from the stomach was more common in practice.…”

“…Several studies have attempted to measure intragastric pH using the Bravo capsule in humans and monkeys [15][16][17][18][19]. Use of the Bravo capsule in humans intragastric pH monitoring, fixed by mucosal suction, has been reported, and the Bravo capsules remained on the gastric wall for over 48 h in 82% of cases [16].…”

Large Buffering Effect of the Duodenal Bulb in Duodenal Switch: a Wireless pH-Metric Study

“…Direct placement avoids a repeated endoscopy to confirm the placement of the capsule and is associated with shorter procedure time and less discomfort for the patients [8, 12, 19]. An acute angulation of the gastric tube imposed some difficulties in advancing the capsule distally through the pylorus, and the use of an endoscopic snare was very helpful.…”