In this retrospective study of 417 children with IgAV, 12.0% developed recurrence, and preceding infection, microscopic hematuria, widespread/bullous skin involvement, joint involvement, and lower monocyte counts were independent predictors of recurrence.
Recurrence occurred in 12.0% of children with IgA vasculitis in this cohort.
Recurrent IgAV was characterized by more severe cutaneous involvement at presentation.
Arthritis and microscopic hematuria at presentation were more frequent in patients who later had recurrence.
Preceding infection was more common in recurrent patients and independently increased relapse risk.
Microscopic hematuria at presentation was an independent predictor of recurrence.
Widespread/bullous cutaneous involvement was an independent predictor of recurrence.
Joint involvement was an independent predictor of recurrence.
Lower monocyte counts were independently associated with relapse risk.
Colchicine use was more frequent among recurrent patients, which the authors interpret as reflecting treatment preferences for recurrent skin disease rather than greater systemic severity.
This study looked back at the medical records of 417 children diagnosed with IgA vasculitis, a common childhood condition that causes inflammation of small blood vessels, typically with a skin rash, joint pain, and sometimes stomach or kidney problems. Although it is usually thought to resolve on its own, about 12% of the children (50 of 417) had the disease come back during follow-up. Children whose disease recurred were more likely to have had a more severe skin rash (widespread or blistering), joint inflammation, blood in the urine seen only under the microscope, and an infection before the illness began. Lower levels of a type of white blood cell called monocytes were also linked to recurrence. After statistical adjustment, each of these remained an independent predictor. Children who had recurrences more often received colchicine, a drug used for recurrent skin disease, but the authors believe this reflects how doctors chose to treat repeated skin flares rather than more serious illness overall. This research suggests that features present at the first episode, along with a simple blood count, might help doctors identify which children are more likely to relapse and may need closer follow-up. Because the study was retrospective and based on records, it shows associations rather than proving cause, and the findings would need confirmation in other groups of children.
Çelikel E, Erdem Torun &, Uğur Es Y, Şener E, Sezer S, Öztürk D, et al.. (2026). Clinical phenotype and predictors of recurrence in childhood IgA vasculitis.. European journal of pediatrics. https://doi.org/10.1007/s00431-026-07576-0