4.4 Article

Fluid overload and acute kidney injury in children with tumor lysis syndrome

Journal

PEDIATRIC BLOOD & CANCER
Volume 68, Issue 12, Pages -

Publisher

WILEY
DOI: 10.1002/pbc.29255

Keywords

acute kidney injury; fluid overload; leukemia; lymphoma; tumor lysis syndrome

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This study analyzed the incidence of fluid overload (FO) and acute kidney injury (AKI) among 56 pediatric patients with Tumor lysis syndrome (TLS). Severe FO and AKI were common complications associated with increased morbidity, leading to a significant increase in PICU admission and the need for renal replacement therapy. Further prospective, multicenter studies are necessary to better understand the burden of FO and AKI in this vulnerable population.
Aim Tumor lysis syndrome (TLS) is a common oncologic emergency among patients with pediatric hematologic malignancies. The mainstay of TLS management is aggressive intravenous hydration. However, the epidemiology of fluid overload (FO) and acute kidney injury (AKI) in this population is understudied. In this study, we aimed to describe the incidence, severity, and complications of FO and AKI among pediatric patients with TLS. Methods We completed a single-center retrospective cohort study of pediatric patients with a new diagnosis of hematologic malignancy over a 10-year period. Patients with TLS were analyzed in two groups based on the severity of AKI and FO. Charts were reviewed for complications associated with AKI and FO including hypoxemia, mechanical ventilation, hyponatremia, pulmonary edema, pediatric intensive care (PICU) admission, and need for renal replacement therapy (RRT). Results We analyzed 56 patients with TLS for FO and AKI. We found severe FO (>= 10%) occurred in 35.7% (n = 20). PICU admission occurred in 35% of patients with severe FO compared to 8.3% in those with mild/moderate FO <10% (p = .013). Complications of hypoxemia (30% vs. 5.6%, p = .012) and pulmonary edema (25% vs. 2.8%, p = .010) were more common among those with severe FO. AKI occurred in 37.5% (n = 21) patients and resulted in a significant increase in PICU admission and requirement for RRT (p = .001 and <.001, respectively). Conclusion Our results show FO and AKI are common, and often unrecognized complications of TLS associated with increased morbidity. Prospective, multicenter studies are needed to further dissect the burden of FO and AKI within this vulnerable population.

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