Burden of Renal Dysfunction and Neurologic Complications in Hospitalized Pediatric Heart Failure Unrelated to Congenital Heart Disease: A Multicenter Study
Transplantology(2023)
Abstract
Objectives: Limited data are available on renal dysfunction and neurologic complications in heart failure in children, when the heart failure is not related to congenital heart disease (CHD) or cardiac surgery. This study used a multi-center database to describe pediatric heart failure (pHF)-related renal dysfunction, neurological complications, and outcomes in non-CHD patients. Methods: The Pediatric Health Information System (PHIS) database between 2004 and 2020 was used to analyze the prevalence of renal dysfunction and neurologic complications associated with pHF hospitalizations and their impact on outcomes. Results: Of the 5515 hospitalizations included in the study, renal dysfunction was identified in 1239 (22.5%), and neurologic dysfunction was diagnosed in 539 (9.8%). The diagnosis of renal or neurologic complications was associated with significantly higher use of ICU therapies, including mechanical ventilation, parenteral nutrition, and mechanical circulatory support. Patients with significant renal dysfunction were likely to receive kidney transplants in 3.1% of the cases. Neurologic complications were higher in patients with pHF who underwent heart transplantation (21.3% vs. 7.8%, p < 0.001). Patients with renal dysfunction and neurologic complications had significantly higher mortality rates than those without renal dysfunction (11.7% vs. 4.3%, p < 0.001) and neurologic complications (18.4% vs. 4.6%, p < 0.001). Conclusions: Renal dysfunction and neurologic complications are common, resulting in significantly higher utilization of ICU therapies and mortality rates during non-CHD-related pHF hospitalization. Neurologic complications associated with hospitalization for pHF are associated with a significantly higher mortality, which has been underemphasized in the literature. This study assesses the burden of these morbidities and highlights the importance of monitoring and managing renal and neurologic complications in pHF to improve outcomes.
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Key words
pediatric heart failure,renal dysfunction,neurologic complications,VAD,ECMO,mortality in pediatric heart failure,heart transplantation,kidney transplantation
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