Esophageal motor function in primary Sjögren's syndrome

Area of Science:

• Gastroenterology
• Rheumatology
• Clinical Medicine

Background:

• Primary Sjögren's syndrome (PSS) is a chronic autoimmune disease primarily affecting exocrine glands.
• Dysphagia, or difficulty swallowing, is a frequently reported symptom in PSS patients.
• The underlying mechanisms of dysphagia in PSS are not fully understood.

Purpose of the Study:

• To investigate esophageal motor function in patients with PSS.
• To determine the relationship between esophageal motility and the presence or severity of dysphagia.
• To explore correlations between dysphagia and specific clinical or laboratory markers in PSS.

Main Methods:

• Esophageal manometry was performed on 20 outpatients meeting diagnostic criteria for PSS.
• Patients underwent manometry during dry and wet swallows.
• Data on dysphagia, labial gland inflammation, parotid flow rate, and autoantibodies were collected.

Main Results:

• Dysphagia was reported by 75% (15 out of 20) of the PSS patients studied.
• No specific esophageal motility pattern was consistently associated with the presence or severity of dysphagia.
• No significant correlation was found between dysphagia and labial gland inflammation, parotid flow rate, or autoantibody status.

Conclusions:

• Dysphagia is a common symptom in patients with primary Sjögren's syndrome.
• Esophageal manometry has not identified a consistent motor dysfunction pattern explaining dysphagia in PSS.
• The etiology of dysphagia in PSS remains unclear and warrants further investigation beyond standard esophageal motility assessments.