Design and implementation of an ambulatory pH monitoring protocol in patients with suspected laryngopharyngeal reflux.

Objective/hypothesis: Adding a hypopharyngeal sensor to esophageal pH monitoring has been advocated for laryngopharyngeal reflux (LPR). However, selecting the proper pH catheter is problematic because esophageal lengths are variable among individuals.

Objective: To design and implement a new pH monitoring protocol for LPR.

Proximal sensor data from routine dual-sensor esophageal pH monitoring is often inaccurate.

Dual-sensor esophageal pH monitoring is routinely used to diagnose GERD. However, the proximal sensor may not be in proximal esophagus in patients with shortened esophagi. Our objective was to determine how often the proximal sensor was misplaced and to determine the effect on pH monitoring.

Clinical impact of upper endoscopy in the management of patients with gastroesophageal reflux disease.

Objective: Esophago-gastro-duodenoscopy (EGD) is frequently performed in patients with heartburn. However, the benefit of an EGD is unclear. The objective is to determine the clinical impact of performing an EGD in the management of GERD.