Abstract
Background
While administration of fluid can be lifesaving, it has been suggested that the fluid accumulation after initial resuscitation and hemodynamic stabilization can contribute to potentially avoidable adverse effects and less favorable outcomes.
Objective
The aim of this study is to assess whether positive fluid balance in comparison with negative or even fluid balance is associated with increased morbidity and mortality rates in critically ill patients.
Patients and Methods
This prospective observational study was performed on 145 Patients older than 18 years admitted to intensive care units at Helwan university hospitals and Ain shams university hospitals during the period from November 2017 till May 2018.
Results
A total of 145 patients with an ICU mortality rate of 14.5% were enrolled. The median cumulative fluid balance of the 124 patients who survive was -110 ml (IQR -2.1-2.2 L) after the fourth day following randomization while the median cumulative fluid balance of the 21 patients who not survive was 3800 ml (IQR 1.7-5.2 L) after the fourth day in ICU. In our study critically ill patients with fluid balance more than 1.2 litres per day had higher ICU complications: increased risk of AKI, longer ICU and hospital stays, and mechanical ventilation, and fluid balance was independently associated with mortality.
Conclusion
In the view of this study, we concluded that:Zero fluid balance and negative fluid balance independently associated with decrease mortality and morbidity rates in critically ill patients after 4 days from admission in ICU.There was higher cumulative fluid balance in non survivors compared to survivors. Cumulative fluid balance after 4 days from admission was independently predictive of mortality in a heterogeneous group of critically ill patients.96 hour negative fluid balance in critically ill patients was associated with less length of stay at ICU and less mechanical ventilation duration.Positive fluid balance, mechanical ventilation, vasopressors, and high admission SAPS II, SOFA, APACHE II and KIDGO were significantly associated with high mortality.
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