Pressure-controlled inverse ratio ventilation during laryngeal mask airway anesthesia

Effect of Pressure-controlled inverse ratio ventilation during laryngeal mask airway anesthesia on ventilatory parameters

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20201109049319N1

Enrollment

Registered

2020-12-10

Start date

2020-05-21

Completion date

Unknown

Last updated

2021-01-05

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

Conditions

Pressure-controlled inverse ratio ventilation during laryngeal mask airway anesthesia. Age-related cataract

Interventions

Intervention 1: Intervention group: Compression ventilation group with normal ratio ratio of inhalation to exhalation 1 to 2), maximum airway pressure will be adjusted so that the current volume of 6

Eligibility

Sex/Gender

All

Age

20 Years to 70 Years

Inclusion criteria

Inclusion criteria: ASA class one and two Candidate for cataract surgery under general anesthesia using laryngeal mask

Exclusion criteria

Exclusion criteria: Perform surgery under local anesthesia Lung disease BMI > 30 kg/m2 Patients with obstructive sleep apnea Patients with a history of gastroesophageal reflux Reluctance to participate in the study Age under 20 years Age over 70 years People with mental disabilities

Design outcomes

Primary

Measure	Time frame
Maximum airway pressure. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Airway dynamic compliance. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Expiratory volume of exhalation. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Arterial blood oxygen saturation. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.	—

Measure

Time frame

Maximum airway pressure. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Airway dynamic compliance. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Expiratory volume of exhalation. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.;Arterial blood oxygen saturation. Timepoint: 1, 5, 10 and 20 minutes after the start of anesthesia. Method of measurement: Ventilator device monitor.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactMahkam Rezvani

Tabriz University of Medical Sciences

mahkam.rezvanii@gmail.com+98 41 3668 6556

Outcome results

None listed

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