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Factors associated with mortality in acute renal failure (ARF) in children
Reyner Loza1, Luis Estremadoyro, César Loza
1Nephrology Unit, Universidad Peruana Cayetano Heredia, Hospital Cayetano Heredia, Av. Honorio Delgado s/n, San Martín de Porras, Lima, Peru. reyfe@hotmail.com
Insights
Mortality in pediatric acute renal failure (ARF) is significantly influenced by oliguria and age. Sepsis also emerged as a critical factor impacting survival rates in children with ARF.
Area of Science:
- Pediatric Nephrology
- Critical Care Medicine
- Epidemiology
Background:
- Acute renal failure (ARF) in children presents a significant challenge in pediatric critical care.
- Identifying factors associated with mortality is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the key factors influencing mortality rates in pediatric patients diagnosed with acute renal failure.
- To analyze the impact of various clinical parameters on survival in this vulnerable population.
Main Methods:
- A cohort of 149 pediatric patients with ARF was studied.
- Data on age, gender, renal damage mechanism, and clinical type (oligoanuric/septic) were collected.
- Statistical analyses included multiple logistic regression, Cox survival analysis, and Kaplan-Meier curves.
Main Results:
- The most affected age groups were newborns and infants.
- Ischemic mechanisms and non-oliguric types were most frequent.
- Multiple logistic regression identified oliguria and age group as mortality predictors. Cox analysis linked oliguria and sepsis to mortality.
- Survival probability decreased significantly with time, particularly in the presence of oliguria or sepsis.
Conclusions:
- Oliguria, advanced age (newborns and infants), and sepsis are independently associated with increased mortality in children with ARF.
- These findings highlight critical targets for intervention and management strategies in pediatric ARF.
Objective:
To assess the factors that affect the mortality in acute renal failure (ARF) in children.
Patients And Methods:
We studied 149 patients with ARF and described the findings by age, gender, pathophysiological mechanism of renal damage, and type of renal damage, which can be oligoanuric and/or septic. We used multiple logistic analysis, Cox analysis for survival, and Kaplan-Meier curves.
Results:
The male/female ratio was 91/58. The most affected age groups were newborns (44.3%) and infants (37.6%). The ARF mechanism was ischemic in 87 cases (58%) and the most frequent clinical type was nonoliguric in 118 cases (79.2%). In the multiple logistic regression analysis, only oliguria (P=0.07) and age group (P=0.049) were associated with mortality. In the survival analysis using the Cox method, oliguria (P=0.003) and sepsis (P=0.03) were associated with mortality. The survival curves showed that the cumulative probability of dying in the first 10, 20, or 40 days after the event was 75, 70, and 45% respectively. When oliguria was present, the survival at day 10 was 47% and when sepsis was present it was 68%.
Conclusion:
Oliguria, age, and sepsis are factors associated with mortality in children with ARF.
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