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Published on: April 7, 2021
Early fluid overload was associated with prolonged mechanical ventilation and more aggressive parameters in
Clarice Laroque Sinott Lopes1, Guilherme Unchalo Eckert2, Taís Sica da Rocha2
1Pediatric Intensive Care Unit, Hospital da Criança Santo Antônio in Porto Alegre, Porto Alegre, Brazil.
Insights
Early fluid overload in critically ill children receiving mechanical ventilation (MV) is linked to increased ventilator settings and longer MV duration. However, it did not significantly impact mortality rates in this study.
Area of Science:
- Pediatric Intensive Care
- Critical Care Medicine
- Nephrology
Background:
- Fluid overload is a common complication in critically ill children.
- Early recognition and management of fluid overload are crucial for patient outcomes.
Purpose of the Study:
- To evaluate the impact of early fluid overload on outcomes in critically ill children receiving mechanical ventilation.
- To examine the association between fluid overload and mechanical ventilation (MV), mortality, length of stay, and renal replacement therapy.
Main Methods:
- Retrospective cohort study of pediatric intensive care unit patients requiring MV for over 24 hours.
- Fluid overload percentage (FO%) calculated daily for the first 72 hours.
- Statistical analysis to determine the effect of FO% on outcomes.
Main Results:
- 186 MV episodes in 154 patients were analyzed; mortality rate was 12.4%.
- A fluid overload of ≥10% was associated with higher peak inspiratory pressure, positive end-expiratory pressure, and increased need for renal replacement therapy.
- Fluid overload ≥10% was independently associated with longer MV support duration.
Conclusions:
- Early cumulative fluid overload of ≥10% in pediatric patients on MV is linked to more aggressive ventilatory parameters and prolonged MV duration.
- Fluid overload did not demonstrate an independent association with mortality in this cohort.
Aim:
We evaluated the influence of early fluid overload on critically ill children admitted to a paediatric intensive care unit by examining mechanical ventilation (MV), mortality, length of stay and renal replacement therapy.
Methods:
This retrospective cohort study covered January 2015 to December 2016 and focused on all episodes of MV support that exceeded 24 hours. The fluid overload percentage (FO%) was calculated daily for the first 72 hours and we estimated its effect on outcomes.
Results:
We included 186 MV episodes in 154 patients. The median age was 13.8 months, with an interquartile range (IQR) of 3.8-34.0 months, and the mortality rate was 12.4%. The median FO% in the first 72 hours was 8.0% (IQR 3.6%-11.2%). An FO% of ≥10% was associated with higher ventilatory parameters, namely peak inspiratory pressure (P = .023) and positive end expiratory pressure (P = .003), and renal replacement therapy (P = .02) and higher mortality (8.8% vs 19.7%). In a multivariate Cox regression model, FO ≥ 10% at 72 hours was independently associated with longer MV support, but not mortality (P = .001).
Conclusion:
In a heterogeneous paediatric population given MV, an early cumulative FO of ≥10% was associated with more aggressive ventilatory parameters and prolonged length of MV, but not mortality.
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