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Heart surgery showdown: which bypass method spares tiny vessels?

NCT ID NCT05479188

Knowledge-focused Sponsor: Aristotle University Of Thessaloniki 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at 60 heart surgery patients to see how two different bypass machines affect blood flow in tiny vessels under the tongue. One method was minimally invasive, the other was the standard approach. The goal was to find out which technique keeps small blood vessels working better during surgery.

What this could mean

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

What this could lead to
If successful, this could help surgeons choose better methods to protect small blood vessels during heart surgery.
What could go wrong
This is a small, completed observational study. It does not test a new treatment, so direct patient benefits are uncertain.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

60 people

The number who actually took part.

Started

Dec 2021

Finished

Dec 2023

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.

Ages

18 to 85 years

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: * patients undergoing undergoing open heart surgery with accepted indications under extracorporeal circulation Exclusion Criteria: * patients undergoing emergency surgery * patients in preoperative cardiogenic shock with evidence of tissue malperfusion * patients with severe peripheral vascular disease * patients unable to give informed consent

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Conditions

The condition(s) this trial relates to.

aortic valve stenosis coronary artery disorder disease mitral valve disorder

As listed by the trial registrant

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

Aortic valve stenosis Coronary artery disease Mitral disease

Contacts and locations

Locations

  • Cardiothoracic Department, AHEPA University Hospital

    Thessaloniki, 54636, Greece

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