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NIRS for Predicting Kidney Injury After Cardiac Surgery

This study is looking at whether a special sticker, called a NIRS sensor, can help predict acute kidney injury (AKI) after heart surgery. AKI is a common problem after heart surgery that can affect how well you recover. NIRS sensors use light to measure oxygen levels in tissues. Currently, these sensors are used on the forehead to check brain oxygen. This study wants to see if placing NIRS sensors on the skin over your kidney works better at predicting AKI than placing them on your arm or leg. You might be able to join if you are an adult having heart surgery that requires a heart-lung machine and are at risk for AKI. The study aims to see if NIRS can predict AKI within 7 days after surgery. The study is currently unclear about its recruitment status.

Study design
This is an observational study with a planned enrollment of 100 adult cardiac surgery patients. It is not specified if participants are randomly assigned to groups or if the study is blinded.
What's involved
After giving written consent, a NIRS sensor will be placed on your skin over your kidney and possibly on your limbs before general anesthesia for your surgery. Your skin tone will be assessed, and your kidney will be located using ultrasound.
Compensation
Not stated in the trial record.
Follow-up
Participants will be followed from post-operative day 0 to post-operative day 7 to check for the development of acute kidney injury.

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NCT06705855

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

Recruiting
Not specifiedAges 18+Observational
University of Utah
~100 participants
Updated 2025-08-17 on ClinicalTrials.gov
What's tested:NIRS sensor placement

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Development of post-operative acute kidney injury (AKI) in adult cardiac surgery patients
Measured over From post-operative day 0 to post-operative day 7(KDIGO stage I AKI)

Conditions

NIRS
Cardiac Surgery Associated - Acute Kidney Injury
Cardiac Surgery Requiring Cardiopulmonary Bypass
AKI - Acute Kidney Injury

Explore related trials

Acute Renal Failure

Where it's being run

1 sites across 1 states
Utah1

Study leadership

  • Natalie Silverton, MD · PRINCIPAL_INVESTIGATOR · University of Utah

Who to contact

Natalie Silverton, MD
[email protected]
801-581-6393
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Eligibility criteria

Inclusion

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.

What this trial measures

  • Development of post-operative acute kidney injury (AKI) in adult cardiac surgery patientsFrom post-operative day 0 to post-operative day 7(KDIGO stage I AKI)

    The objective of this study is to compare perioperative renal NIRS and limb NIRS and determine whether these measurements can predict acute kidney injury in adult cardiac surgery patients. The primary outcome will be the as defined by the Kidney Disease: Improving Global Outcomes (KDIGO) guidelines. Measured by an increase in serum creatinine greater than 0.3mg/dl (48 hours) or an increase in serum creatinine greater than 1.5 times baseline (7 days).