Pediatric dermatology · 2020
Urticarial vasculitis in pediatric systemic lupus erythematosus.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод в очереди
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Al Kamzari Ahmed, Al Musalhi Buthaina, Al Abrawi Safiya, Al-Zakwani Ibrahim, Abdwani Reem
Аннотация
BACKGROUND/OBJECTIVES: To determine the prevalence of urticarial vasculitis (UV) in a pediatric systemic lupus erythematosus (pSLE) cohort of Arab ethnicity from Oman and to describe their demographic, clinical, and laboratory features.
METHODS: We conducted a retrospective multicenter study among pediatric rheumatology centers in Oman over a 10-year period from 2008 to 2018. Analyses were performed using univariate statistics.
RESULTS: A total of 148 pSLE under the age of 13 years were included of which 30% (n = 44) were men. The overall mean age at SLE diagnosis was 7.6 ± 3.5 years while the mean disease duration was 10.1 ± 5.4 years. UV was diagnosed in 36% (n = 53) of pSLE patients. Patients with pSLE and UV were more likely to be male (57% vs 15%; P < .001), diagnosed at a younger age (5.9 vs 8.5 years; P < .001), have a family history of SLE (53% vs 36%; P = .044), and have associated conjunctivitis, (32% vs 5.3%; P < .001) but less likely to have CNS involvement (7.6% vs 20%; P = .045) or hematological manifestations such as leukopenia (9.4% vs 24%; P = .028) and thrombocytopenia (5.7% vs 18%; P = .045). This subgroup was also more likely to be associated with low C3 complement count (94% vs 66%; P < .001) and positive cytoplasmic ANCA (11% vs 0%; P = .022).
CONCLUSION: We report a high occurrence of UV in a pSLE cohort associated with unique demographic, clinical, and laboratory features.
METHODS: We conducted a retrospective multicenter study among pediatric rheumatology centers in Oman over a 10-year period from 2008 to 2018. Analyses were performed using univariate statistics.
RESULTS: A total of 148 pSLE under the age of 13 years were included of which 30% (n = 44) were men. The overall mean age at SLE diagnosis was 7.6 ± 3.5 years while the mean disease duration was 10.1 ± 5.4 years. UV was diagnosed in 36% (n = 53) of pSLE patients. Patients with pSLE and UV were more likely to be male (57% vs 15%; P < .001), diagnosed at a younger age (5.9 vs 8.5 years; P < .001), have a family history of SLE (53% vs 36%; P = .044), and have associated conjunctivitis, (32% vs 5.3%; P < .001) but less likely to have CNS involvement (7.6% vs 20%; P = .045) or hematological manifestations such as leukopenia (9.4% vs 24%; P = .028) and thrombocytopenia (5.7% vs 18%; P = .045). This subgroup was also more likely to be associated with low C3 complement count (94% vs 66%; P < .001) and positive cytoplasmic ANCA (11% vs 0%; P = .022).
CONCLUSION: We report a high occurrence of UV in a pSLE cohort associated with unique demographic, clinical, and laboratory features.