Bravo pH Monitoring

Bravo records the acidity inside the lower esophagus continuously. Each time acid moves up from the stomach, the capsule registers it, and the recorder stores when it happened and how long it lasted.

The value is in the pairing. You press a button and note the time when you feel a symptom, and the analysis can then show whether your symptoms line up with actual acid events. Symptoms that correlate and symptoms that do not lead to very different plans.

It also produces a total acid exposure figure across the whole recording, which is the closest thing there is to an objective answer to the question of whether you have acid reflux.

The older way to measure esophageal acid is a thin catheter passed through the nose and taped to the face for a day. It works, but it is uncomfortable enough that many people change how they eat, sleep, and move while wearing it, which is precisely what you do not want during a measurement.

The capsule removes the tube. Nothing is visible, nothing is taped to your face, and you go about a normal day. That matters, because a recording made during a normal day is the one that describes your actual life.

The longer recording window is the other advantage. Reflux varies day to day, and 48 to 96 hours of data is more representative than a single 24 hour snapshot.

You arrive fasting. The capsule is placed during a short sedated upper endoscopy, positioned a set distance above the junction of the esophagus and stomach, and attached to the lining with a small suction and clip mechanism.

You wake up, are given a recorder to carry, and go home. Most people feel nothing at all. Some notice an awareness in the chest for a day, and occasionally that sensation is uncomfortable enough to be worth reporting.

You will be told whether to stay on your acid medication or hold it before the study. That instruction is deliberate and it changes what the test can answer, so follow the one you are given.

Eat normally. That instruction surprises people, but avoiding your usual triggers during the test hides the very events the test exists to catch.

Keep the recorder within range, log meals, log when you lie down, and press the marker button whenever you feel a symptom. The diary is not busywork. Half the interpretive value comes from it.

Air travel, MRI, and certain scans are not appropriate while the capsule is in place, and you will be given specific instructions on that before you leave.

The capsule detaches from the lining on its own, usually within several days, and passes through the digestive tract without being noticed. Nothing needs to be retrieved.

You return the recorder and the data is analyzed. Results are reviewed together at a follow up visit, where the numbers are translated into a plain answer: whether acid exposure is abnormal, whether your symptoms track with it, and what that means for treatment.

This page is educational information, not medical advice. What is right for you is decided in consultation, after a review of your history, your symptoms, and your testing.