Esophageal diverticula are associated with propagating peristalsis: a study utilizing high-resolution manometry

Area of Science:

• Gastroenterology
• Esophageal Physiology
• Diagnostic Imaging

Background:

• Esophageal diverticula are frequently linked to esophageal motility disorders.
• Achalasia is the most common motility disorder associated with esophageal diverticula.
• High-resolution manometry (HRM) is a key tool for diagnosing esophageal motility disorders.

Purpose of the Study:

• To evaluate high-resolution manometry (HRM) motility diagnoses in patients with esophageal diverticula.
• To assess esophageal pressurization patterns in patients with esophageal diverticula.
• To compare esophageal pressurization in patients with diverticula to asymptomatic controls.

Main Methods:

• Retrospective analysis of 19 patients with distal esophageal diverticula who underwent HRM.
• HRM data analyzed using the Chicago Classification for motility diagnoses.
• Measurement of compartmentalization phase pressure slopes during esophageal bolus transit, compared to 10 controls.

Main Results:

• Motility diagnoses varied, with normal motility in 42%, esophagogastric junction outflow obstruction in 26%, and jackhammer esophagus in 11%.
• 32% of patients exhibited hypercontractile swallows.
• Patients with diverticula showed greater compartmentalization phase pressure slopes in the mid-esophageal body compared to controls.

Conclusions:

• Propagating peristalsis, including hypercontractility, is common in patients with esophageal diverticula.
• Abnormal compartmentalization phase pressurization suggests a potential link between esophageal wall mechanics/compliance and diverticula.
• The causal or reactionary nature of these manometric findings in relation to diverticula requires further investigation.