NCT01839058

Is Non-Cardiac Chest Pain Caused by Sustained Longitudinal Smooth Muscle Contraction?

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 40 (actual)
• Sponsor: Queen's University · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Accepted

Summary

Non-cardiac chest pain (NCCP) is a common disorder whose pathophysiology is poorly understood. Some evidence suggests it may be related to sustained esophageal contractions (SECs) of longitudinal smooth muscle. The investigators have previously shown that acid is a trigger for SECs and results in shortening of the esophagus. In this study, the investigators plan to prospectively evaluate esophageal shortening responses to acid in a group of patients with NCCP compared to controls. The investigators will use high resolution esophageal manometry coupled with acid infusion to evaluate shortening. The investigators hypothesize that at least a subset of patients with NCCP will have an exaggerated esophageal shortening response to acid which correlates with symptom production. If our hypothesis proves true, this may lead to a future therapeutic target in the treatment of these patients.

Conditions

• Chest Pain Atypical Syndrome

Interventions

Type	Name	Description
OTHER	Esophageal Manometry	Both cohorts will undergo standard high resolution esophageal manometry testing. This entails a catheter passed through the nose into the esophagus and measures pressure changes with a series of wet swallows. As part of the study, we will also be instilling both weak acid and saline into the esophagus.

Timeline

• Start date: 2013-10-01
• Primary completion: 2014-10-01
• Completion: 2014-10-01
• First posted: 2013-04-24
• Last updated: 2018-11-26
• Results posted: 2017-08-03

Locations

1 site across 1 country: Canada