Comparison of one-handde and two-handed mask ventilation after induction of general anesthesia by the Oxygen Reserve Index (ORI).

Comparison of one-handde and two-handed mask ventilation after induction of general anesthesia by the Oxygen Reserve Index (ORI). - Comparison of one-handde and two-handed mask ventilation after induction of general anesthesia by the Oxygen Reserve Index (ORI).

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000044524

Enrollment

Registered

2021-06-14

Start date

2020-12-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Patient undergoing elective surgery under general anesthesia

Interventions

two minute of one-handed mask ventilation two minute of two-handed mask ventilation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: ASA-PS 1,2 Patients undergoing elective surgery under general anesthesia

Exclusion criteria

Exclusion criteria: Unexpected difficult airway

Design outcomes

Primary

Measure	Time frame
Oxygen Reserve Index 2 minutes after the start of each mask ventilation method	—

Countries

Japan

Contacts

Public ContactYu Miyake

Japan Self Defense Force Hospital Yokosuka Department of Anesthesiology

y.miyake0520@gmail.com046-823-0270

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026