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The effect of anesthetic gases on blood values in middle ear surgeries

Investigation of the metabolomic effects of Sevoflurane and Desflurane in middle ear surgery

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12624000610538
Enrollment
96
Registered
2024-05-10
Start date
2024-04-01
Completion date
2024-11-01
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

As with many surgical procedures, ear surgery is performed under general anesthesia. Special anesthetic gases are given to the patient so that the anesthesia process can continue. In this study, we aimed to compare the effects of different anesthetic gases on the blood values of the patients and to find out which one may be superior in terms of body metabolism.

Interventions

Our study will include 100 patients scheduled for middle ear surgery (patients who will undergo tympanoplasty or masteidectomy surgery and who have no active infection, body mass index (BMI) <35, aged 18 to 65 years, ASA I-II who agree to participate in the study). Patients will receive standard anesthesia induction (Propofol, rocuronium, fentanyl) and will be endotracheally intubated and connected to the anesthesia device. Patients will be divided into 2 groups. Sevoflurane group will be starte

Our study will include 100 patients scheduled for middle ear surgery (patients who will undergo tympanoplasty or masteidectomy surgery and who have no active infection, body mass index (BMI) <35, aged 18 to 65 years, ASA I-II who agree to participate in the study). Patients will receive standard anesthesia induction (Propofol, rocuronium, fentanyl) and will be endotracheally intubated and connected to the anesthesia device. Patients will be divided into 2 groups. Sevoflurane group will be started with Sevoflurane 1 minimal alveolar concentration (min: 2% - max: 2.5%) as inhalation anesthetic by adjusting the vaporizer. In the desflurane group, The vaporizer will be set and started with desflurane 1 minimal alveolar concentration (min: 6% - max: 9%) as inhalation anesthetic. The first blood sample will be taken from the finger immediately after the inhalation anesthetics are started. Control of inhalation anesthetics used in the groups and vaporizer settings will be done by the anesthesiologist. After the surgical procedure is finished and inhalation anesthesia is stopped, the second blood sample will be taken. Samples will be taken from the fingertips of the patients and absorbed on gutrie paper. Samples will be taken by the anesthesiologist. Total Free amino acid profile will be studied and statistical analysis will be performed. The assignment of patients to groups will be allocated sequentially.

Sponsors

HARRAN UNIVERSITY
Lead SponsorUniversity

Study design

Allocation
Non-randomised trial
Intervention model
Other
Primary purpose
Diagnosis
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

Our study will include 100 patients scheduled for middle ear surgery (patients who will undergo tympanoplasty or masteidectomy surgery and who have no active infection, body mass index (BMI) <35, aged 18 to 65 years, ASA I-II who agree to participate in the study).

Exclusion criteria

1. People over 65 years of age 2. ASA 3-4 patients 3. People with a body mass index (BMI) >35

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026