Clinical trial Recruiting at 1 site Observational Ages 18 and up

Low-Flow Anesthesia in Open-Heart Surgery

Official title: The Effect of Low-Flow Anesthesia on Hemodynamics in Open-Heart Surgery

Run by Gazi University · NCT07040735 · Data updated 2026-11-12

This study tests whether different fresh gas flow rates during open-heart surgery with low-flow anesthesia affect patient hemodynamics.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment80 (estimated)
SponsorGazi University
Academic / other
Locations1 site (Ankara)
StatusRecruiting
StartedJuly 1, 2025
Main results expectedSeptember 2, 2026
Study endsSeptember 23, 2026
Registry record updatedMay 27, 2026
Trial IDNCT07040735 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years or older scheduled for open-heart surgery, with ASA physical status I–IV.

Probably not a fit

Patients undergoing emergency cases or with contraindications to inhaled anesthetics may not benefit from findings.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study examines open-heart surgery patients to see if varying fresh gas flow rates in low-flow anesthesia lead to differences in hemodynamic outcomes. Adults undergoing open-heart procedures are eligible, with a broad ASA class range. No interventions are assigned by the researchers; data are collected from standard clinical care to compare outcomes across different gas flow levels. The study is conducted at Gazi University Faculty of Medicine in Ankara, led by Çağrı Özdemir, with no listed collaborators. Results may inform how gas flow choices impact cardiovascular stability during surgery.

Why it matters

Potential benefit: If successful, findings could help optimize anesthesia practice to maintain stable hemodynamics during open-heart procedures.

How similar studies have gone: Previous definitions and classifications of low-flow and minimal-flow anesthesia exist, but specific hemodynamic comparisons at varying fresh gas flows in open-heart surgery are less well-established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

-≥18 years and scheduled for open-heart surgery patients

-ASA I-II-III-IV physical class

Exclusion Criteria:

* Emergency cases
* Patients under 18 years of age
* Patients who have had open heart surgery before
* Patients for whom the use of inhaled anesthetic agents is contraindicated
* Patients who do not sign a voluntary consent form

Where it's running

  • Gazi University Faculty of Medicine
    Ankara, Turkey (Türkiye)
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.