Comparison of the results of placing patients' heads in different positions during laryngoscopy in adult patients who are candidates for elective surgery: A randomized 3-arm clinical trial

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20101114005175N20

Enrollment

155

Registered

2022-04-26

Start date

2022-05-10

Completion date

Unknown

Last updated

2022-05-02

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

Conditions

Airway management in the operating room. Failed or difficult intubation

Interventions

Intervention 1: Intervention group A: Patients are divided into three intervention groups. The anesthesiologist extends the patient's head by applying pressure to the patient's forehead. The anesthesi

Eligibility

Sex/Gender

All

Age

18 Years to 70 Years

Inclusion criteria

Inclusion criteria: The patient is a candidate for elective surgery The patient has an indication for endotracheal intubation. Patients should be 18 to 70 years old ASA class 1 and 2, the patient has no airway involvement, the patient has no cervical spine disorder. Not pregnant or breastfeeding.

Exclusion criteria

Exclusion criteria: Jumping vomiting after induction of anesthesia Requires blade laryngoscope number four for intubation Existence of 4 criteria (out of 5 criteria) difficult intubation.

Design outcomes

Primary

Measure	Time frame
Head position of Successful intubation in the first attempt. Timepoint: After induction and proceed to intubation. Method of measurement: Direct laryngoscopy.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAhang Karimi

Tehran University of Medical Sciences

ahang.karimi@yahoo.com+98 21 8670 5503

Outcome results

None listed

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