What is Bravo pH Monitoring?

Bravo™ pH Monitoring is a wire-free test used to measure acid levels in the esophagus. It uses a small pH capsule, about the size of a gel pill, that is temporarily attached to the lining of the esophagus.

The capsule measures acid levels and sends the information wirelessly to a small receiver worn on a belt or waistband. Patients also record symptoms by pressing buttons on the receiver and keeping a simple diary.

The capsule collects data for up to 48 hours. After the test is complete, the information from the receiver and diary is uploaded to a computer so your doctor can review the results and plan treatment. Normal activities like eating, drinking, and swallowing will not cause the capsule to fall off. The capsule naturally detaches and passes through the digestive system, usually within 5 to 7 days.

Why Is Bravo pH Monitoring Done?

Bravo pH Monitoring is often used when a doctor suspects gastroesophageal reflux disease (GERD). GERD can cause symptoms such as heartburn, coughing, or a sore throat. This test helps determine if stomach acid is moving back into the esophagus.

Most people with acid reflux do not need this test. It is usually recommended for patients who continue to have symptoms despite treatment or who have unusual symptoms that may be related to acid reflux. Because frequent reflux can damage the esophagus, your doctor may suggest this test to help guide diagnosis and treatment.

How Do I Prepare for Bravo pH Monitoring?

Your doctor will give you detailed instructions before your appointment. Preparation often includes stopping certain medications for several days before the test and avoiding food and drinks for a few hours beforehand. Be sure to follow all instructions closely.

What Should I Expect During Bravo pH Monitoring?

Bravo pH Monitoring is placed during a routine upper endoscopy (EGD). While you are under anesthesia, the doctor attaches the small capsule to your esophagus. You will not feel pain during this part of the procedure.

Once the capsule is in place, it begins sending acid level readings to the receiver you wear on your waist. After leaving the office, it is important to follow your normal daily routine so the test results are accurate.

You should:

• Eat at least two meals per day at your usual times

• Follow your doctor’s instructions about medications

• Stay upright during the day and lie down only when sleeping or napping

You will need to record symptoms by pressing buttons on the receiver and note when you eat, drink, or lie down. When the monitoring period ends, you will return the receiver to the office. The capsule will detach on its own and pass naturally through your digestive system within 7 to 10 days.

What Are the Possible Risks of Bravo pH Monitoring?

Bravo pH Monitoring is a safe procedure with a low risk of complications. Rarely, patients may feel chest discomfort from the capsule. A sore throat for a day or two may occur after the endoscopy.

Other risks are the same as those of a standard upper endoscopy. You should not have an MRI for 30 days after the procedure. If you experience any concerns during or after the test, contact your doctor’s office.