Low-Flow Anesthesia and Open-Heart Surgery
The Effect of Low-Flow Anesthesia on Hemodynamics in Open-Heart Surgery
Çağrı Özdemir
80 participants
Jul 1, 2025
OBSERVATIONAL
Conditions
Summary
Low-flow anesthesia (LFA) is a technique in which at least 50% of the exhaled air, after carbon dioxide absorption, is mixed with a certain amount of fresh gas and returned to the patient during the next inspiration. In 1974, R. Virtue defined minimal flow anesthesia (MFA) as 0.5 L/min. In 1984, Baker and Simionescu classified LFA as 0.5-1 L/min and MFA as 0.25-0.5 L/min. The aim of this study is to investigate whether there are hemodynamic differences between open-heart surgery cases performed with LFA at different fresh gas flow rates.
Eligibility
Inclusion Criteria2
- ≥18 years and scheduled for open-heart surgery patients
- ASA I-II-III-IV physical class
Exclusion Criteria5
- 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
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Locations(1)
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NCT07040735