Efficacy of preoxygenation using bag-valve mask, mechanical filter and PEEP valve in healthy volunteers

Status

Recruiting

Phases

Phase 2

Study type

Interventional

Source

TCTR

Registry ID

TCTR20210720001

Enrollment

Registered

2021-07-20

Start date

2021-07-20

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

a preliminary safety study preoxygenation technique , mechanical filter , airborne disease, bag valve mask

Interventions

Preoxygenation via BVM and mechanical filter ,Preoxygenation via BVM, mechanical filter and add oxygen feeding flow 15 LPM at the patient end of the circuit ,Preoxygenation via BVM, mechanical filt

Experimental Device,Experimental Device,Experimental Device,Experimental Device

Technique 1,Technique 2,Technique 3,Technique 4

Eligibility

Sex/Gender

All

Age

20 Years to 65 Years

Inclusion criteria

Inclusion criteria: age 20-65 yr healthy inform consent accepted

Exclusion criteria

Exclusion criteria: respiratory tract symptoms during trial COPD or asthma pregnancy BMI more than 30 kg/m2 inform consent withdrawal

Design outcomes

Primary

Measure	Time frame
end tidal oxygen after 5 minutes of preoxygenation 5 minutes after preoxygenation via oxygen analyzer in Drager CS2 anesthetic machine	—

Secondary

Measure	Time frame
comfortable after preoxygenation of each device 5 minutes after preoxygenation numeric rating scale ,end tidal oxygen every 1 minute till 5 minute after preoxygenation by each device every 1 minute till 5 minutes after pre oxygenation by each device via oxygen analyzer in Drager CS2 anesthetic machine,Continuous positive airway pressure every 1 minute till 5 minute after preoxygenation by each device every 1 minute till 5 minute after preoxygenation by each device pressure transducer connected to the face mask ,time reaching end tidal oxygen 90% after preoxygenation with each device 5 minute if reach end tidal oxygen 90% , extend to maximum 10 minutes via oxygen analyzer in Drager CS2 anesthetic machine	—

Measure

Time frame

comfortable after preoxygenation of each device 5 minutes after preoxygenation numeric rating scale ,end tidal oxygen every 1 minute till 5 minute after preoxygenation by each device every 1 minute till 5 minutes after pre oxygenation by each device via oxygen analyzer in Drager CS2 anesthetic machine,Continuous positive airway pressure every 1 minute till 5 minute after preoxygenation by each device every 1 minute till 5 minute after preoxygenation by each device pressure transducer connected to the face mask ,time reaching end tidal oxygen 90% after preoxygenation with each device 5 minute if reach end tidal oxygen 90% , extend to maximum 10 minutes via oxygen analyzer in Drager CS2 anesthetic machine

—

Countries

Thailand

Contacts

Public ContactJittiya Watcharotayangul

Faculty of Medicine Ramathibodi Hospital, Mahidol University.

Now_cool@hotmail.com0818400486

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026