Usefulness of Oxygen Reserve Index (ORi), a new parameter of oxygenation reserve potential, for rapid sequence induction of general anesthesia

Usefulness of Oxygen Reserve Index (ORi), a new parameter of oxygenation reserve potential, for rapid sequence induction of general anesthesia - Usefulness of Oxygen Reserve Index (ORi), a new parameter of oxygenation reserve potential, for rapid sequence induction of general anesthesia

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000020983

Enrollment

Registered

2016-02-12

Start date

2016-01-01

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

Adult patients with ASA (American Society of Anesthesiologists) classification 1 or 2 who are scheduled for surgical procedures under general anesthesia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Adult patients who are scheduled for surgical procedures under general anesthesia, and who meet all of the following conditions: 1. ASA (American Society of Anesthesiologists) classification 1 or 2 2. No expected difficulty in tracheal intubation. 3. Submission of written informed consent for this study.

Exclusion criteria

Exclusion criteria: Patients are excluded if they meet any of the following conditions: 1. Under 21 years of age. 2. Impossibility of wearing the sensor due to deformity or hypoperfusion of fingers. 3.cardiac or pulmonary disease (e.g. chronic obstructive pulmonary disease, asthma) 4. Preoperative anemia due to hemoglobinopathies (e.g. sickle cell disease, thalassemia) 5. Ineligibility for participation in the study

Design outcomes

Primary

Measure	Time frame
Trends in ORI and SpO2 before and after rapid sequence induction of general anesthesia.	—

Secondary

Measure	Time frame
1. Basic patient information: Gender, age, height, weight, date of surgery, diagnosis, operative procedure, and sensor attachment site. 2. Presence or absence of adverse events, symptoms, extent, and treatment. 3. Presence or absence of measurement equipment failure. 4. Presence or absence of measurement cessation. 5. Recording of data monitoring: Blood pressure, heart rate, SpO2, SpHb of RootTM, ORI, perfusion index (PI), pleth variability index (PVI), and time from propofol administration to tracheal intubation.	—

Measure

Time frame

1. Basic patient information: Gender, age, height, weight, date of surgery, diagnosis, operative procedure, and sensor attachment site. 2. Presence or absence of adverse events, symptoms, extent, and treatment. 3. Presence or absence of measurement equipment failure. 4. Presence or absence of measurement cessation. 5. Recording of data monitoring: Blood pressure, heart rate, SpO2, SpHb of RootTM, ORI, perfusion index (PI), pleth variability index (PVI), and time from propofol administration to tracheal intubation.

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Countries

Japan

Contacts

Public ContactTsuyoshi Isosu

Fukushima Medical University Department of Anesthesiology

masui@fmu.ac.jp024-547-1111

Outcome results