Jason H Greenberg1, Michael Parsons2, Michael Zappitelli3, Yaqi Jia4, Heather R Thiessen-Philbrook4, Prasad Devarajan5, Allen D Everett2, Chirag R Parikh6. 1. Section of Nephrology, Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut; Program of Applied Translational Research, Yale School of Medicine, New Haven, Connecticut. 2. Division of Cardiology, Department of Pediatrics, Johns Hopkins University, Baltimore, Maryland. 3. Division of Nephrology, Department of Pediatrics, Toronto Hospital for Sick Children, Toronto, Ontario, Canada. 4. Division of Nephrology, School of Medicine, Johns Hopkins University, Baltimore, Maryland. 5. Nephrology and Hypertension, Cincinnati Children's Hospital, Cincinnati, Ohio. 6. Division of Nephrology, School of Medicine, Johns Hopkins University, Baltimore, Maryland. Electronic address: chirag.parikh@jhmi.edu.
Abstract
BACKGROUND: Children undergoing a cardiac surgical procedure are at increased risk for acute kidney injury (AKI). Novel biomarkers are needed to improve risk stratification of AKI after cardiac surgery. METHODS: We enrolled children aged 1 month to 18 years old from July 2007 to December 2010 undergoing cardiopulmonary bypass. Three United States Food and Drug Administration-approved plasma biomarkers of cardiac stretch, N-terminal pro B-type natriuretic peptide (NTproBNP), inflammation (ST2), or fibrosis (galectin-3), were measured preoperatively and postoperatively within 6 hours of cardiac surgery. All analyses were stratified by age (<2 or ≥2 years old) to account for changing biomarker distributions during childhood and due to a significant interaction between biomarker and age for galectin-3 and NTproBNP (P < .05). RESULTS: Postoperatively, AKI, defined by a doubling of baseline serum creatinine, was diagnosed in 51 of 194 children <2 years and in 28 of 201 children ≥2 years. After multivariable adjustment, for children <2 years, none of the biomarkers were independently associated with AKI, whereas for children ≥2 years, the highest tertile of preoperative galectin-3 and NTproBNP as well as the postoperative galectin-3 and ST2 were associated with AKI. CONCLUSIONS: Preoperative plasma galectin-3 and NTproBNP and the first postoperative galectin-3 and ST2 levels were independently associated with AKI in children ≥2 years old. The performance of cardiac biomarkers after cardiac surgical procedure is affected by age, and research is required to develop biomarkers for children <2 years old.
BACKGROUND:Children undergoing a cardiac surgical procedure are at increased risk for acute kidney injury (AKI). Novel biomarkers are needed to improve risk stratification of AKI after cardiac surgery. METHODS: We enrolled children aged 1 month to 18 years old from July 2007 to December 2010 undergoing cardiopulmonary bypass. Three United States Food and Drug Administration-approved plasma biomarkers of cardiac stretch, N-terminal pro B-type natriuretic peptide (NTproBNP), inflammation (ST2), or fibrosis (galectin-3), were measured preoperatively and postoperatively within 6 hours of cardiac surgery. All analyses were stratified by age (<2 or ≥2 years old) to account for changing biomarker distributions during childhood and due to a significant interaction between biomarker and age for galectin-3 and NTproBNP (P < .05). RESULTS: Postoperatively, AKI, defined by a doubling of baseline serum creatinine, was diagnosed in 51 of 194 children <2 years and in 28 of 201 children ≥2 years. After multivariable adjustment, for children <2 years, none of the biomarkers were independently associated with AKI, whereas for children ≥2 years, the highest tertile of preoperative galectin-3 and NTproBNP as well as the postoperative galectin-3 and ST2 were associated with AKI. CONCLUSIONS: Preoperative plasma galectin-3 and NTproBNP and the first postoperative galectin-3 and ST2 levels were independently associated with AKI in children ≥2 years old. The performance of cardiac biomarkers after cardiac surgical procedure is affected by age, and research is required to develop biomarkers for children <2 years old.
Authors: Michael D Green; Devin M Parker; Allen D Everett; Luca Vricella; Marshall L Jacobs; Jeffrey P Jacobs; Jeremiah R Brown Journal: Ann Thorac Surg Date: 2020-08-25 Impact factor: 5.102