Novel Biomarkers of Acute Kidney Injury (AKI) after Cardiac Surgery

The Translational Research Investigating Biomarker Endpoints (TRIBE) consortium aims to improve the outcomes and safety of cardiac surgery. This multicenter prospective observational study is sponsored by the NHLBI to investigate novel biomarkers in the detection of early AKI after major cardiac surgery. The main objective of the study is to determine whether the novel biomarkers can be used as diagnostic tests to improve pre-operative and post-operative risk-stratification of AKI. 

Nine North American sites are participating in this project, with Yale University serving as the primary data and sample coordinating site. Over the course of the study, it is expected that over 1,500 patients undergoing cardiac surgery will be enrolled. Blood and urine specimens will be collected during hospitalization.

Bio Profile

Chirag Parikh, MD, PhD, FACP

Principal Investigator

Professor Adjunct

Director, Program of Applied Translational Research

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Bio Profile

Steven Coca, DO, MS

Assistant Adjunct Professor, Internal Medicine, Nephrology

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Haiqun Lin, MD, PhD

Associate Professor of Biostatistics

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Prasad Devarajan, MD

Cincinnati Children's Hospital

Charles Edelstein, MD, PhD

University of Colorado

Amit Garg, MD, PhD

University of Western Ontario

Kathleen F. Kerr, PhD

University of Washington

Jay Koyner, MD

University of Chicago

Cary Passik, MD

Danbury Hospital

Uptal Dinesh Patel, MD

Duke University 

Michael Shlipak, MD

University of California, San Francisco

Michael Zappitelli, MD, M.Sc.

Montreal Children's Hospital

TRIBE-AKI Publications

Contact Information

For more information, or if you are interested in collaborating on this study, please contact

Project Funding

Funding for this project comes, in part, from the following grants:

R01 HL085757 (NIH-NHLBI)

"Novel Biomarkers in Cardiac Surgery to Detect Acute Kidney Injury"

R01 HL119664 (NIH-NHLBI)

"Novel Biomarkers to Predict Readmission in Pediatric and Adult Heart Surgery"