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Breath test may predict surgery risks for elderly patients

NCT ID NCT05861089

Knowledge-focused Sponsor: St. Anne's University Hospital Brno, Czech Republic 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 measuring carbon dioxide in a patient's breath at rest (PETCO2) can help predict lung and heart complications after major vascular surgery. Researchers studied 91 older adults who were scheduled for aortobifemoral bypass surgery. The goal was to see if a simple, non-stressful breath test could replace the standard exercise test that many frail patients cannot complete.

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

91 people

The number who actually took part.

Started

Jun 2023

Finished

Jan 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

Consecutive patients scheduled for vascular surgery will be recruited. This subset of patients was chosen as it usually presents with a number of serious comorbidities and short claudication interval which makes them indicated to, but unable to complete the standard CPET

Ages

18 years and older

Sex

Anyone

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: * indication for major vascular surgery (aortobifemoral bypass surgery) Exclusion Criteria: * tracheostomy

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Conditions

The condition(s) this trial relates to.

peripheral arterial disease Postoperative Complications

As listed by the trial registrant

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

Post-op complication

Contacts and locations

Locations

  • St. Anne's University Hospital in Brno

    Brno, Czech Republic, 60200, Czechia

More trials for these conditions

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