An impedance probe (thin wire with sensors) could be inserted while the child is awake or under anesthesia if combined with another procedure.
The nurse can insert the wire into the child's nose and down the esophagus until the desired depth is reached. This can take place at the bedside, in the operating room or under fluoroscopy. Once proper depth is reached and after an X-ray, the wire will then be taped to the patient's face and hooked into a recorder box for approximately 18-24 hours. The child may go about their daily routine as allowed by his/her physician.
A small amount of family participation is expected during the test. A parent or other adult will need to push a button on the recording device when the patient does certain activities, such as eating a meal or lying down. This information will help the healthcare team better analyze the test results.