Systemic inflammatory complications following jejuno-ileal bypass

Area of Science:

• Rheumatology
• Gastroenterology
• Infectious Diseases

Background:

• Jejuno-ileal bypass surgery for morbid obesity can lead to systemic inflammatory complications.
• These complications can mimic autoimmune or autoinflammatory conditions like Behçet's syndrome.

Observation:

• Three patients presented with a distinct set of symptoms including polyarthritis, tenosynovitis, skin pustules, mucous membrane ulceration, and retinal vasculitis post-surgery.
• While circulating immune complexes were not consistently detected, transient hypocomplementaemia and elevated inflammatory markers were noted before relapses.

Findings:

• Antibiotic therapy was ineffective in managing these inflammatory complications.
• Dapsone treatment resulted in sustained remission of symptoms in the affected patients.
• Bacterial overgrowth was not a universal finding, and symptom recurrence after bypass reversal suggested a complex etiology.

Implications:

• The findings suggest that bacteria might trigger, rather than continuously drive, the inflammatory process.
• Dapsone appears to be a promising therapeutic option for managing these post-surgical inflammatory syndromes.
• Further research is needed to elucidate the precise mechanisms linking jejuno-ileal bypass surgery to these systemic inflammatory conditions.