Which Works Better to Keep Oxygen Levels Safe in Obese Patients Before Surgery: Oxygen Tubes (HFNO) or Face Mask?

To compare the efficacy of HFNO with bag mask ventilation for preoxygenating the obese patients posted for surgeries under general anaesthesia using ORI ? A randomized controlled trial - Nil

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2025/09/094130

Enrollment

Registered

2025-09-02

Start date

Unknown

Completion date

Unknown

Last updated

2025-09-15

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

Conditions

Health Condition 1: -

Interventions

Intervention1: (Group I) Interventional group: patients will be preoxygenated with 100% oxygen High-Flow Nasal oxygen cannula till the patient achieves an optimal ORI of 0.3 Control Intervention1: (Gr

Eligibility

Inclusion criteria

Inclusion criteria: Obese patients posted for surgeries under general anaesthesia , BMI more than 30 kg per m?

Exclusion criteria

Exclusion criteria: History of respiratory failure or significant pulmonary disease , Severe cardiovascular comorbidities , Any pathology involving nasal passage (polyp, inferior turbinate hypertrophy etc.),Pregnant women

Design outcomes

Primary

Measure	Time frame
Time to achieve optimal ORI level of 0.3Timepoint: 0,30 sec ,60 sec,90 sec,120 sec , 180 sec	—

Secondary

Measure	Time frame
Comfort & tolerability during preoxygenationTimepoint: Post operatively 15 min after emergence from anesthesia;To monitor any adverse events or complications.Timepoint: Post-operatively 0,15 min after emergence from anesthesia	—

Countries

India

Contacts

Public ContactAnanthakrishnan P M

AIIMS Mangalagiri

ananthakrishnan6472@gmail.com6282719364

Outcome results

None listed

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