digest
Short Summary
Main recommendation: Prepare for the Bravo pH study by stopping acid-suppressing medications on the schedule given (proton pump inhibitor 7 days before, H2 blocker 2 days before, other antacids 1 day before) and fasting from midnight except small sips of water with necessary medications until 4 hours before the procedure. The Bravo pH study is a catheter-free test that measures how much acid reaches the esophagus over 48 or 96 hours, helping determine whether acid reflux is present and whether current therapy is working.
Key Points
- The Bravo system attaches a small pH capsule (about the size of a gel cap) to the lower esophagus during a standard endoscopic exam performed under sedation, and it transmits acid-exposure data wirelessly to a recorder worn for the test.
- The test is indicated when gastroesophageal reflux disease is suspected, or when reflux symptoms persist or fail to resolve despite acid-suppressing therapy.
- Reflux symptoms that may prompt testing include heartburn, regurgitation, difficulty swallowing, a sensation of a lump in the throat, chronic cough, laryngitis, and new or worsening asthma.
- The capsule usually detaches on its own after about five days, passes in the stool, and does not need to be retrieved.
Details Worth Noting
- Concrete instructions: Tell your doctor if you take a blood thinner, have a pacemaker or defibrillator, or have a nickel allergy. Stop proton pump inhibitors 7 days before the procedure, H2 blockers 2 days before, and all other antacids 1 day before. If you need no acid suppression off-medication for any part of the study, continue your reflux medications unless your physician says otherwise. Do not eat or drink after midnight the night before, except small sips of water with necessary medications, until 4 hours before the procedure; then take nothing by mouth. On the day of the procedure, follow the individualized instructions you receive for your reflux medications during the study.
- The study can last 48 or 96 hours, and the stop-medication schedule applies to the entire study or to its first 48 hours, depending on the protocol.
- The capsule is placed through the endoscope after the standard exam of the esophagus, stomach, and first part of the small intestine.
- The video frames the study as a way to guide symptom management, not as a standalone diagnosis.
Bottom Line
Following the medication-stopping schedule and fasting rules closely is what makes the Bravo pH study's results reliable, and you should confirm your personal instructions with your care team.
