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  • Title: Plasma Neutrophil Gelatinase-Associated Lipocalin Is Associated With Acute Kidney Injury and Clinical Outcomes in Neonates Undergoing Cardiopulmonary Bypass.
    Author: Schroeder LW, Buckley JR, Stroud RE, Martin RH, Nadeau EK, Barrs R, Graham EM.
    Journal: Pediatr Crit Care Med; 2019 Oct; 20(10):957-962. PubMed ID: 31206501.
    Abstract:
    OBJECTIVES: Acute kidney injury is a frequent complication following neonatal cardiac surgery and is associated with significant morbidity and mortality. The objectives of this study were to determine if plasma neutrophil gelatinase-associated lipocalin levels were associated with acute kidney injury and clinical outcomes in neonates with congenital heart disease undergoing cardiopulmonary bypass. DESIGN: Retrospective single-center observational study. SETTING: A pediatric cardiac ICU within a tertiary-care academic hospital. PATIENTS: Patients age less than 30 days undergoing cardiac surgery requiring cardiopulmonary bypass. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Plasma neutrophil gelatinase-associated lipocalin peaked at 12 hours postcardiopulmonary bypass and more than doubled compared with preoperative levels. Higher preoperative and 24-hour postoperative neutrophil gelatinase-associated lipocalin levels were associated with acute kidney injury (r = 0.30, r = 0.49), longer duration of mechanical ventilation (r = 0.40, r = 0.51), ICU (r = 0.32, r = 0.33) and hospital lengths of stay (r = 0.28, r = 0.32), and total hospital charges (r = 0.35, r = 0.30; all p values < 0.05). CONCLUSIONS: Both preoperative and 24-hour postoperative plasma neutrophil gelatinase-associated lipocalin levels are associated with acute kidney injury and worse clinical outcomes in neonates undergoing cardiac surgery. Plasma neutrophil gelatinase-associated lipocalin levels may have a role in risk stratification for predicting postoperative renal dysfunction as well as providing a potential clinical trajectory in the postoperative period.
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