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A Comparison of Renal vs Limb NIRS for Predicting Cardiac Surgery Associated Acute Kidney Injury

Who can join

Ages 18 and older · All sexes

Inclusion Criteria:

* We will enroll a convenience sample of adult cardiac surgery patients undergoing procedures that require cardiopulmonary bypass (CPB) and who are at risk for AKI.

Exclusion Criteria:

* Exclusion criteria will include less than age 18 years old, preoperative end-stage kidney disease requiring dialysis, emergency surgery, or patient refusal.

About the study

Acute kidney injury (AKI) is a complication of cardiac surgery that can affect outcome. Near Infrared Spectroscopy (NIRS) is a technology that uses light to determine how well oxygenated tissues are. This technology is routinely used in cardiac surgery to measure the oxygen level in the brain by placing a sensor sticker on the forehead. The purpose of the study is to determine whether NIRS sensor stickers placed on the skin over the kidney can predict AKI better than when sensors are placed on the skin over the participant's limbs. This study is being conducted by investigators from the department of anesthesiology at the University of Utah.

What is being tested

• NIRS sensor placement (device)

Sponsor: University of Utah · Participants: 100 · Started: May 29, 2025

Contact the study team

• Natalie Silverton, MD · Phone: 801-581-6393
• Natalie Bennion, MPH · Phone: 801-585-7697

Official record on ClinicalTrials.gov — NCT06705855

Locations in the U.S.

Conditions

• Acute Kidney Injury

From ClinicalTrials.gov, data retrieved Oct 2, 2026. Each study sets its own eligibility; the study team decides who can join.