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Updated: Jul 8, 2026

Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
Published on: August 9, 2014
Aetiology and outcome of acute and chronic renal failure in infants
Mirja Wedekin1, Jochen H H Ehrich, Gisela Offner
1Department of Pediatric Nephrology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany.
Insights
Infants with acute or chronic renal failure (ARF/CRF) have high mortality, but renal replacement therapy offers good survival chances for those without severe comorbidities. Kidney transplants in infants show promising long-term outcomes.
Area of Science:
- Pediatric Nephrology
- Renal Medicine
- Infant Health
Background:
- Analyzed aetiology and outcomes of acute renal failure (ARF) and chronic renal failure (CRF) in infants.
- Retrospective study of children under 1 year with serum creatinine >100 mumol/l.
Purpose of the Study:
- To evaluate the causes and survival rates of infants with ARF and CKD.
- To assess the effectiveness of renal replacement therapy (RRT) in this population.
Main Methods:
- Followed 119 infants (<1 year) with elevated creatinine (1997-2004).
- Classified 70 infants with ARF and 49 with chronic kidney disease (CKD) stages 3-5.
- Documented causes of renal failure, treatments (dialysis, kidney transplant), and outcomes.
Main Results:
- Congenital diseases caused 41% of renal failure; acquired diseases caused 59%.
- ARF causes included cardiac, prematurity, and septic conditions; 37% mortality unrelated to kidney function.
- For CKD, 21/49 infants received dialysis; 23/49 underwent kidney transplant (RTx) with 95.5% 5-year survival. Non-RTx CKD survival was 63%.
Conclusions:
- Renal replacement therapy provides good survival for infants without life-threatening comorbidities.
- Infant survival with CKD treated in the first year rivals that of older children.
Background:
The aetiology and outcome of acute (ARF) and chronic renal failure (CRF) in infants were analysed in a retrospective study.
Methods:
Between January 1997 and April 2004 all children <1 year of age with a serum creatinine >100 mumol/l at Hannover Medical School were followed up for up to 6 years. One hundred and nineteen children with a serum creatinine >100 mumol/l were identified, 70 infants suffering from ARF and 49 from chronic kidney disease (CKD), stages 3-5.
Results:
Renal failure was caused in 49/119 (41%) by congenital and in 70/119 (59%) by acquired diseases. The aetiology of ARF (n = 70) included cardiac (27%), prematurity (27%), septic (10%), hepatic (9%), renal (9%) and other (18%) causes. Twelve infants needed transient dialysis treatment. Renal function recovered in all surviving children. The mortality rate was 37%. Causes of death were unrelated to kidney function. Twenty-one of 49 infants with CKD were dialyzed with a median age of 65 days at the start of dialysis, and 23/49 children received a kidney transplant (RTx). The 5-year patient and graft survival for RTx-children of 95.5% was not different from older children. The 5-year patient survival rate of 26 children with CKD without RTx was 63%. The causes of death were parental refusal of therapy in neonates (n = 4) and life-threatening extra-renal comorbidity (n = 3).
Conclusion:
Renal replacement therapy offers good chances of survival in infants without life-threatening comorbidity. Patient survival of infants treated for CKD in the first year of life was comparable to that of older children.
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