[Involvement of the small intestine in systemic scleroderma]

Area of Science:

• Gastroenterology
• Rheumatology
• Systemic autoimmune diseases

Context:

• Systemic sclerosis (SSc) commonly affects the gastrointestinal tract, with small intestine involvement occurring in 40-80% of patients.
• Gastrointestinal manifestations in SSc, particularly small intestine disorders, can lead to life-threatening complications.
• Current diagnostic methods for small intestine impairment in SSc lack sensitivity, leading to delayed diagnosis until severe complications arise.

Purpose:

• To highlight the significance of small intestine impairment in systemic sclerosis.
• To discuss the diagnostic challenges and unclear pathophysiology of small intestine disorders in SSc.
• To emphasize the potential of small intestine manometry in diagnosing and managing SSc-associated gastrointestinal dysfunction.

Summary:

• Small intestine impairment is a frequent and potentially severe complication of systemic sclerosis.
• The pathophysiology of small intestine involvement in SSc is not fully understood, and diagnosis is often delayed due to non-specific symptoms and insensitive radiological tests.
• Small intestine manometry is proposed as a valuable tool for assessing motor abnormalities and guiding therapy, such as the use of somatostatin analogs, in SSc patients with malabsorption or pseudo-obstruction.

Impact:

• Improved understanding of small intestine pathophysiology in SSc.
• Enhanced diagnostic capabilities for small intestine disorders in SSc.
• Potential for more targeted and effective therapeutic strategies for gastrointestinal complications in systemic sclerosis.