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Light sensor may spot kidney danger during heart surgery

NCT ID NCT07582393

Diagnosis Sponsor: SERAY TÜRKMEN Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether a special light-based monitor (near-infrared spectroscopy) placed on the skin can help predict kidney injury after heart surgery. Researchers measured oxygen levels in the kidneys of 113 adults during surgery and checked if low levels were linked to later kidney problems. The goal is to find a simple, non-invasive way to catch kidney damage early.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

113 people

The number who actually took part.

Started

May 2025

Finished

Feb 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adult patients undergoing elective cardiac surgery with cardiopulmonary bypass, including coronary artery bypass grafting and/or heart valve surgery, with preserved preoperative renal function and meeting all inclusion and exclusion criteria.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≥18 years * Patients undergoing elective cardiac surgery with cardiopulmonary bypass * Written informed consent obtained * Body mass index \<35 kg/m² * Estimated glomerular filtration rate \>65 mL/min/1.73 m² Exclusion Criteria: * Refusal to participate * Age \<18 years * Body mass index ≥35 kg/m² * Skin-to-kidney capsule distance \>4.5 cm * Estimated glomerular filtration rate \<65 mL/min/1.73 m² * Preoperative inotropic support * Preoperative mechanical ventilation * STEMI or NSTEMI requiring contrast administration * Planned total circulatory arrest * Acute aortic dissection

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Conditions

The condition(s) this trial relates to.

acute kidney injury

As listed by the trial registrant

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

Acute kidney injury cardiac surgery

Contacts and locations

Locations

  • SBU Prof. Dr. Cemil Tascioglu City Hospital

    Istanbul, Istanbul, 34384, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.