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Updated: Aug 19, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
Clinical profile and outcome of acute renal failure in South Indian children
Indira Agarwal1, Chellam Kirubakaran, V Markandeyulu
1Department of Child Health, Christian Medical College, Vellore 632004.
Insights
Acute renal failure in children is often caused by gastroenteritis and sepsis, leading to high mortality. Factors like hyperkalemia, hyponatremia, and high creatinine levels are associated with poor outcomes in pediatric acute kidney injury.
Area of Science:
- Pediatric Nephrology
- Critical Care Medicine
- Infectious Diseases
Background:
- Acute renal failure (ARF) in children presents a significant health challenge.
- Identifying risk factors for poor outcomes is crucial for improving pediatric ARF management.
Purpose of the Study:
- To evaluate the clinical characteristics of children hospitalized with acute renal failure.
- To determine factors associated with adverse outcomes in pediatric ARF.
Main Methods:
- Retrospective analysis of 54 children (1 month to 12 years) diagnosed with ARF.
- Assessment of precipitating causes, presenting symptoms, treatment interventions, and biochemical parameters.
- Correlation of clinical and biochemical findings with patient outcomes, including mortality.
Main Results:
- Gastroenteritis (85%) was the leading cause, followed by underlying renal pathology (43%) and sepsis (22%).
- High mortality (52%) was observed, with sepsis (83% mortality) and need for ventilation (100% mortality) being significant contributors.
- Electrolyte imbalances (hyperkalemia, hyponatremia, hypernatremia) and elevated creatinine levels were strongly associated with increased mortality.
Conclusions:
- Pediatric ARF, often precipitated by gastroenteritis and sepsis, carries a high mortality rate.
- Underlying renal pathology and sepsis significantly worsen morbidity and mortality.
- Close monitoring of biochemical parameters like potassium and creatinine is essential for predicting outcomes in pediatric ARF.
Abstract:
This was a retrospective study to assess the clinical profile of children admitted with acute renal failure and to identify factors associated with poor outcome. Fifty-four children (age one month to 12 years) with acute renal failure were studied. Males outnumbered females (38/54; 70%). The leading precipitating causes for renal failure were acute gastro-enteritis (85%), underlying renal pathology (43%), proven sepsis (22%) and suspected sepsis (22%). The main presenting complaints were diarrhoea (86%),oliguria (72%), rapid respiration (37%), oedema (37%), vomiting (19%) and seizures (13%). All patients underwent standard investigations and treatment. Forty-eight per cent of patients required peritoneal dialysis and 15% required ventilation. The overall mortality was 52%. Underlying renal pathology and sepsis both contributed to the high morbidity and mortality. Mortality due to sepsis was 83%; it was 65% in dialysed patients and 100% in those requiring ventilatory support. Biochemical profile of the above patients showed that hyperkalaemia was significantly associated with high mortality (83%) as against 75% in those with hypokalaemia and 33% with normal levels (p<0.001). Patients with hyponatraemia and hypernatraemia similarly had an adverse outcome. Acidosis, seen in 20 patients, had a mortality of 45%. The outcome was poorer in those with high creatinine levels (63%).
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Dialysis
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...