Inflammatory manifestations in a single-center cohort of patients with chronic granulomatous disease

Area of Science:

• Immunology
• Genetics
• Pediatrics

Background:

• Chronic Granulomatous Disease (CGD) is a rare primary immunodeficiency affecting phagocyte function.
• CGD can lead to severe infections and complex inflammatory conditions.
• Diagnosis and treatment of CGD-related inflammation pose significant challenges.

Purpose of the Study:

• To characterize the spectrum and frequency of inflammatory manifestations in a cohort of CGD patients.
• To compare inflammatory episode risk between different genetic forms of CGD.
• To identify commonly affected organs and associated conditions.

Main Methods:

• Retrospective review of medical records from 98 CGD patients treated at Necker-Enfants Malades Hospital (1968-2009).
• Data collected included inflammatory episodes, affected sites, and histological findings.
• Statistical analysis compared inflammatory risks between X-linked (XL) and autosomal-recessive (AR) CGD.

Main Results:

• 69.4% of patients experienced 221 inflammatory episodes.
• The incidence of inflammatory episodes was higher in XL-CGD (0.18/person-year) than AR-CGD (0.08/person-year).
• The gastrointestinal tract was most frequently affected (88.2%), followed by lungs (26.4%), urogenital tract (17.6%), and eyes (8.8%).
• Inflammation at other sites and autoimmune manifestations were also noted.
• Granulomas were present in 50% of histological analyses.
• XL-CGD patients had a 2-fold higher risk of inflammatory episodes compared to AR-CGD patients.

Conclusions:

• Patients with XL-CGD face a significantly higher risk of inflammatory episodes than those with AR-CGD.
• While the GI tract is the primary site, diverse organ involvement necessitates a multidisciplinary approach for CGD patient management.