Investigating the Effect of Airway Filter on Arterial Carbon Dioxide Gas Pressure

Survey of airway filter on arterial carbon dioxide pressure in patients under general anesthesia

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20230409057862N1

Enrollment

140

Registered

2023-05-17

Start date

2023-05-22

Completion date

Unknown

Last updated

2023-05-29

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

Conditions

Patients under general anesthesia. Other complications of procedures, not elsewhere classified

Interventions

Intervention 1: Intervention group: After pre-oxygenation and induction with anesthetic drugs including midazolam (0.03 mg/kg), fentanyl (2 µg/kg), sodium thiopental (5 mg/kg) and etracurium (0.5 mg/k

Eligibility

Sex/Gender

All

Age

15 Years to 50 Years

Inclusion criteria

Inclusion criteria: Willingness to enter the study Age between 15 and 50 years ASA I,II

Exclusion criteria

Exclusion criteria: History of respiratory diseases Laparoscopic surgeries History of cyanotic diseases Surgery on the brain Patients whose arterial carbon dioxide pressure is higher than 50 mm Hg, and we have to change the minute volum History of seizures

Design outcomes

Secondary

Measure	Time frame
Operation time. Timepoint: Immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.;Extubation time. Timepoint: immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.;Recovery time. Timepoint: immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.	—

Measure

Time frame

Operation time. Timepoint: Immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.;Extubation time. Timepoint: immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.;Recovery time. Timepoint: immediately after intubation and ten minutes after filter application and twenty minutes after filter application and forty minutes after filter application and also at the end of the procedure. Method of measurement: Hour.

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Primary

Measure	Time frame
Analysis of arterial blood gases and end-expiratory arterial oxygen pressure. Timepoint: Analysis of arterial blood gases and arterial oxygen pressure at the end of exhalation for all patients immediately after intubation and ten minutes after filter operation and twenty minutes after filter operation and forty minutes after filter operation and also at the end of the procedure. Method of measurement: mmHg.	—

Measure

Time frame

Analysis of arterial blood gases and end-expiratory arterial oxygen pressure. Timepoint: Analysis of arterial blood gases and arterial oxygen pressure at the end of exhalation for all patients immediately after intubation and ten minutes after filter operation and twenty minutes after filter operation and forty minutes after filter operation and also at the end of the procedure. Method of measurement: mmHg.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMahshid Vaziri

Ahvaz University of Medical Sciences

vaziri-m@ajums.ac.iR+98 61 3311 4114

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026