Left head rotation as an alternative to difficult intubation: a randomized clinical trial

Left head rotation as an alternative to difficult tracheal intubation: a randomized open-label clinical trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN23442026

Enrollment

Registered

2022-09-05

Start date

2020-09-23

Completion date

Unknown

Last updated

2023-07-04

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

Conditions

Alternative head position for difficult tracheal intubation Not Applicable

Interventions

Enrolled participants who met the inclusion criteria were randomized by drawing lots into the experimental (intubated with left head rotation

n=26) and control groups (intubated in the sniffing position

n=26). The consultant or senior anesthesiology resident opened the papers drawn prior to the induction of anesthesia to determine group assignment. Thus, the consultant or senior anesthesiology reside

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. 18-65 years old 2. BMI 18.5-35 kg/m² 3. ASA Classification I to III 4. Mallampati III

Exclusion criteria

Exclusion criteria: 1. Mallampati IV 2. Sternomental distance 35 kg/m² 7. Known gastroesophageal reflux 8. Presence of anterior neck mass 9. Facial fractures obstructing the airway

Design outcomes

Secondary

Measure	Time frame
Measured at a single time point: 1. Laryngeal exposure measured using Cormack Lehane Grade 2. Intubation ease measured using Intubation Difficulty Scale	—

Primary

Measure	Time frame
Success rate of intubation measured by observing a capnographic waveform in the end-tidal CO2 monitor after placement of the endotracheal tube at a single time point	—

Countries

Philippines

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 9, 2026