CLINICAL KIDNEY JOURNAL, cilt.19, sa.1, 2026 (SCI-Expanded, Scopus)
Despite advances and therapeutic progress, nephrotic syndrome (NS) in childhood remains challenging due to its heterogeneous presentation, variable response to treatment and the potential of adverse long-term kidney outcomes. The recently published KDIGO 2025 clinical practice guideline for the management of NS in children refines the definitions of relapse, infrequently- and frequently-relapsing NS and steroid-resistant NS. Herein we describe the revised definitions, summarize the key updates of the KDIGO 2025 guidelines and comment on the new treatment algorithm from a European viewpoint, highlighting the need for individualized approaches to minimize toxicity and optimize long-term kidney outcomes in NS in children.