Outcomes of steroid-resistant nephrotic syndrome in children not treated with intensified immunosuppression

Background The aim of the current PodoNet registry analysis was to evaluate the outcome of steroid-resistant nephrotic syndrome (SRNS) in children who were not treated with intensified immunosuppression (IIS), focusing on the potential for spontaneous remission and the role of angiotensin blockade on proteinuria reduction. Methods Ninety-five pediatric patients who did not receive any IIS were identified in the PodoNet Registry. Competing risk analyses were performed on 67 patients with nephrotic-range proteinuria at disease onset to explore the cumulative rates of complete or partial remission or progression to kidney failure, stratified by underlying etiology (genetic vs. non-genetic SRNS). In addition, Cox proportional hazard analysis was performed to identify factors predicting proteinuria remission. Results Eighteen of 31 (58.1%) patients with non-genetic SRNS achieved complete remission without IIS, with a cumulative likelihood of 46.2% at 1 year and 57.7% at 2 years. Remission was sustained in 11 children, and only two progressed to kidney failure. In the genetic subgroup (n = 27), complete resolution of proteinuria occurred very rarely and was never sustained; 6 (21.7%) children progressed to kidney failure at 3 years. Almost all children (96.8%) received proteinuria-lowering renin–angiotensin–aldosterone system (RAAS) antagonist treatment. On antiproteinuric treatment, partial remission was achieved in 7 of 31 (22.6%) children with non-genetic SRNS and 9 of 27 children (33.3%) with genetic SRNS. Conclusion Our results demonstrate that spontaneous complete remission can occur in a substantial fraction of children with non-genetic SRNS and milder clinical phenotype. RAAS blockade increases the likelihood of partial remission of proteinuria in all forms of SRNS. Graphical abstract A higher resolution version of the Graphical abstract is available as Supplementary information.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:38

Enthalten in:

Pediatric nephrology - 38(2022), 5 vom: 31. Okt., Seite 1499-1511

Sprache:

Englisch

Beteiligte Personen:

Trautmann, Agnes [VerfasserIn]
Seide, Svenja [VerfasserIn]
Lipska-Ziętkiewicz, Beata S. [VerfasserIn]
Ozaltin, Fatih [VerfasserIn]
Szczepanska, Maria [VerfasserIn]
Azocar, Marta [VerfasserIn]
Jankauskiene, Augustina [VerfasserIn]
Zurowska, Alexandra [VerfasserIn]
Caliskan, Salim [VerfasserIn]
Saeed, Bassam [VerfasserIn]
Morello, William [VerfasserIn]
Emma, Francesco [VerfasserIn]
Litwin, Mieczyslaw [VerfasserIn]
Tsygin, Alexey [VerfasserIn]
Fomina, Svitlana [VerfasserIn]
Wasilewska, Anna [VerfasserIn]
Melk, Anette [VerfasserIn]
Benetti, Elisa [VerfasserIn]
Gellermann, Jutta [VerfasserIn]
Stajic, Natasa [VerfasserIn]
Tkaczyk, Marcin [VerfasserIn]
Baiko, Sergey [VerfasserIn]
Prikhodina, Larisa [VerfasserIn]
Csaicsich, Dagmar [VerfasserIn]
Medynska, Anna [VerfasserIn]
Krisam, Regina [VerfasserIn]
Breitschwerdt, Heike [VerfasserIn]
Schaefer, Franz [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

Antiproteinuric treatment
Children
Nephrotic syndrome
SRNS
Steroid resistance

Anmerkungen:

© The Author(s) 2022

doi:

10.1007/s00467-022-05762-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR049881582