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Breath test may replace invasive heart monitoring during surgery

NCT ID NCT06962748

Knowledge-focused Sponsor: Ain Shams University Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 can help doctors estimate how well the heart is pumping during non-cardiac surgery. The goal is to find a non-invasive way to monitor heart function, avoiding the need for risky catheters. 105 adults having general or lower limb surgery participated. The results may lead to safer, simpler monitoring.

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

105 people

The number who actually took part.

Started

Jun 2025

Finished

Dec 2025

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 55 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * The patients age will be ranged from 18-55 years, * ASA physical status I-II, * General surgeries not involving the head and neck * Orthopedic surgeries involving the lower limb * Patients in supine posture Exclusion Criteria: * Those with Respiratory disease including but not limited to Pneumonia, COPD, Restrictive lung disease and ARDS * Those with anemia. * Patients' refusal to participate in the study. * Thoracic surgeries. * Morbidly obese patients. * Significant carotid artery disease. * Surgeries of less than 2-hour duration.

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As listed by the trial registrant

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

Non-cardiac surgery

Contacts and locations

Locations

  • Ain Shams University

    Cairo, Abbasiya, 12245, Egypt

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