Case 48
This radiograph demonstrates an in situ wireless pH monitoring device, also called a Bravo device. It is placed by an endoscopist and continuously monitors the pH level in the esophagus, wirelessly transmitting the data to an external receiver worn around the patient’s waist for up to 96 hours. This allows for quantification of gastroesophageal reflux disease (GERD) over the recording interval. The device is designed to eventually detach, pass through the digestive tract, and be flushed down the toilet.