Heart surgery fluid showdown: which one spares kidneys?

NCT ID NCT07410988

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This large trial tests two types of intravenous fluids given during heart surgery: hydroxyethyl starch (HES) and balanced crystalloids. The goal is to see which fluid leads to fewer serious kidney problems, such as kidney failure or death. About 1,292 adults having heart surgery will take part, and their kidney health will be tracked afterward.

What this could mean

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

Active substance

hydroxyethyl starch (HES) and balanced crystalloid solutions

What this could lead to

If it works, this could show that one fluid is safer for the kidneys during heart surgery, helping doctors choose better options.

What could go wrong

This is a phase 4 trial, but results may not apply to all patients or surgeries. HES has known kidney risks in some settings, and the benefit may be small.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

coronary artery disorder heart valve disorder thoracic aortic aneurysm

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Chungnam National University Hospital

    RECRUITING

    Daejeon, 35015, South Korea

  • Korea University Guro Hospital

    RECRUITING

    Seoul, 03080, South Korea

  • Seoul National University Hospital

    RECRUITING

    Seoul, 03080, South Korea

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Severance Hospital

    RECRUITING

    Seoul, 03080, South Korea