Post Prandial High Resolution Impedance- Manometry

Esophageal high resolution impedance manometry (HRIM) consists of introducing a transnasal probe to record esophageal contractility (manometry), bolus transit (impedance) but also the occurrence of reflux episodes. Ambulatory 24-h pH-impedance monitoring consists of recording the occurrence of reflux episodes by introducing a transnasal catheter into the esophagus. After inserting the transnasal HRIM probe and the pH-impedance catheter, both HRIM and 24-h pH-impedance recordings are started. The patient is instructed to eat a meal that induces reflux symptoms (the patient brings his own meal). One hour the end of the meal, the HRIM probe is removed. The patient is discharged at home and the 24-h pH-impedance monitoring is continued. The patient is coming back 24-h after catheter insertion to stop the pH-impedance recording and remove the catheter.