Bravo™ Capsule Esophageal pH Test
Purpose: The Bravo Capsule Esophageal pH Test measures and records the level of acidity (pH) in your esophagus to determine the degree to which you have acid reflux over a 48 to 96-hour period. The Bravo device consists of a capsule about the size of a vitamin pill that attaches to your esophagus and transmits information wirelessly to a pocket-sized receiver that you carry with you.
Description: The capsule will be put in place with a catheter. The capsule attaches itself to the inside of your esophagus using suction, and the introducing catheter is then removed. The Bravo usually is placed during an endoscopy procedure while you are under sedation. The receiver is returned to our office after completion of the test. The capsule will dislodge itself in about 3 to 7 days and pass out with the stool. The capsule can be discarded in the stool, and the monitor box (wireless receiver) must be returned to the clinic after completion of the test.
Risks: Uncommonly, patients will experience chest pain or discomfort due to the presence of the Bravo capsule in the esophagus. Rarely, the capsule will not fall off spontaneously, or food may hang up on the Bravo capsule, and endoscopy may be required to remove the capsule. The manufacturer advises that an MRI not be obtained if the Bravo capsule could still be in the body. If it has been longer than a month, it is ok to proceed with an MRI. If you need an MRI before one month, it is recommended you have an X-ray to evaluate if the Bravo capsule remains. The Bravo capsule will sometimes dislodge prematurely or not function properly and need to be reinserted.
Alternatives: 24-hour Esophageal Impedance or Esophageal Manometry is an alternative catheter-based system that provides greater accuracy in general.
- The most accurate results of this test are obtained if you have been off of your reflux medication (such as Prilosec, Prevacid or Dexilant) for seven days.
- You may take Pepcid, Zantac or Tagamet up until two days before the test.
- You may take Tums, Mylanta or Gaviscon up until six hours before the procedure.
- You will receive in-clinic teaching regarding the wireless monitor and BRAVO test instructions prior to the procedure
Afterwards: If you have been sedated, you will need someone to drive you home. You must return the wireless monitor to SGS clinic upon completion of the test. You may resume all prior antacid medications after completion of the test.