This test is the same as an upper endoscopy but during this procedure, your physician will place a pH capsule, about the size of a gel-cap, in your esophagus. Stomach acid can sometimes back up into the esophagus and increase the acid level. Symptoms can include heartburn, chest pain, coughing or sore throat. Before the procedure, you will need to follow prep instructions given to your physician which you need to follow carefully. During the procedure, you will receive IV sedation then the endoscope with a small camera inserted down the esophagus and into the stomach and duodenum Your doctor will then place the capsule in your esophagus throughout the test period; the capsule measures the pH in the esophagus and transmits this information to a small receiver worn on your belt or waistband (like a phone). You will keep a diary after the monitor is placed to record your GERD symptoms such as heartburn and you will also receive instructions on how to use the recorder after your procedure. You will follow prep instructions given to your physician before your procedure which you need to follow carefully. After your procedure, you generally can resume a normal diet but you are not allowed to drive after the procedure due to anesthesia. You will need someone to drive you to and from the center.
Reference: Cleveland Clinic. 2021. Esophagus: 48-hour Bravo Esophageal pH Test. https://my.clevelandclinic.org/health/diagnostics/12042-esophagus-48-hour-bravo-esophageal-ph-test
