A simple sensor on the back could warn of kidney danger during heart surgery

NCT ID NCT07760129

Not yet recruiting Knowledge-focused Sponsor: Yonsei University Source: ClinicalTrials.gov ↗

First seen Aug 12, 2026 · Last updated Aug 13, 2026 · Updated 1 time

Summary

This study tests whether a non-invasive sensor placed on the back can detect early signs of kidney injury in adults undergoing off-pump coronary artery bypass surgery. Kidney injury is common after such surgery, but current detection relies on blood tests that rise days later. The sensor measures oxygen levels in the erector spinae muscle, which lies close to the kidney's blood supply, potentially offering a real-time warning. Researchers will monitor 138 patients during surgery and compare sensor readings with kidney function after the operation.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Near-infrared spectroscopy monitoring of erector spinae muscle and renal regional oxygen saturation
What this could lead to: If it works, this could enable real-time, non-invasive detection of patients at high risk for kidney injury during heart surgery, allowing earlier intervention and potentially reducing complications.
What could go wrong: This is an observational study, not a treatment trial, so it cannot change outcomes directly. The sensor's accuracy may be limited, and results may not apply to all patients or surgery types.

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Conditions

The condition(s) this trial relates to.

acute kidney injury coronary artery disorder Postoperative Complications

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ACUTE KIDNEY INJURY CARDIAC SURGICAL PROCEDURES CORONARY ARTERY BYPASS, OFF-PUMP CORONARY ARTERY DISEASE POSTOPERATIVE COMPLICATIONS SPECTROSCOPY, NEAR-INFRARED

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