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Background In small children, acute dialysis (pediatric acute kidney support therapy (paKST)) is increasingly used; however, it is challenging for many reasons. We compared clinical characteristics and predictors of long-term outcomes of patients < 15 kg on peritoneal dialysis (PD), hemodialysis (HD), and continuous kidney replacement therapy (CKRT). Methods Patients with history of paKST (CKRT, HD, PD) weighing < 15 kg and [greater than or equal to] 6 months of follow-up at Hacettepe University were included. Surviving patients were evaluated at last visit. Results 109 patients (57 females) were included. Median age at paKST was 10.1 months (IQR: 2-27 months). In total, 43 (39.4%) patients received HD, 37 (34%) PD, and 29 (26.6%) CKRT. 64 (58.7%) patients died a median 3 days (IQR: 2-9.5 days) after paKST. Percentages of patients using vasopressor agents, with sepsis, and undergoing mechanical ventilation were lower in those who survived. After mean follow-up of 2.9 ± 2.1 years, 34 patients were evaluated at mean age 4.7 ± 2.4 years. Median spot urine protein/creatinine was 0.19 (IQR: 0.13-0.37) and 12 patients (35.3%) had non-nephrotic proteinuria. Three patients had estimated glomerular filtration rate (eGFR) < 90 mL/min/1.73m.sup.2 and 2 (6%) had hyperfiltration. In total 22 patients (64.7%) had [greater than or equal to] 1 kidney risk factor (elevated blood pressure/hypertension, hyperfiltration, eGFR < 90 ml/min/1.73m.sup.2, and/or proteinuria) at last visit. Among 28 patients on paKST < 32 months, 21 had [greater than or equal to] 1 risk factor (75%), whereas among 6 patients who had paKST [greater than or equal to] 32 months, one patient had [greater than or equal to] 1 risk factor (16.7%), (p = 0.014). Conclusions Patients on paKST who undergo mechanical ventilation and vasopressor treatment should be followed-up more closely. After surviving the acute period, patients on paKST need to be followed-up closely during the chronic stage. Graphical abstract, Author(s): Ömer Nazim Gülçek [sup.1] , Bora Gülhan [sup.2] , Selman Kesici [sup.3] , Eda Didem Kurt Sükür [sup.2] , Mutlu Hayran [sup.4] , Fatih Ozaltin [sup.2] [sup.5] [sup.6] , [...]

Author(s): Eda Didem Kurt-Sükür [sup.1] , Kjell Tullus [sup.2] Author Affiliations: (1) grid.14442.37, 0000 0001 2342 7339, Department of Pediatrics, Division of Nephrology, Hacettepe University School of Medicine, , Ankara, [...]