A study comparing different methods to determine correct depth of breathing tube placement in adults during anaesthesia

Comparison of Accurate Endotracheal Tube depth in Adults: Video Laryngoscope-Guided Intubation Versus Topographic landmark measurement versus Fixed-Length Method assessed by carina to tube distal tip distance using video bronchoscope - A Randomized Controlled Trial - NIL

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2026/04/108916

Enrollment

180

Registered

2026-04-21

Start date

Unknown

Completion date

Unknown

Last updated

2026-04-27

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

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Video laryngoscope: Endotracheal intubation will be performed using a video laryngoscope. The endotracheal tube (ETT) will be advanced under direct visualisation, and the black vocal co

Eligibility

Inclusion criteria

Inclusion criteria: Patients belonging to American Society of Anesthesiologists (ASA) Physical Status I III, scheduled for elective surgical procedures under general anaesthesia requiring endotracheal intubation, ability to provide written informed consent

Exclusion criteria

Exclusion criteria: Presence of head and neck anomalies or thoracic deformities, presence of neck tumour, history of airway surgery or tracheostomy, pregnant patients, refusal to participate

Design outcomes

Primary

Measure	Time frame
Distance between the carina and the distal tip of the endotracheal tube (in centimetres), measured using video bronchoscopyTimepoint: baseline, 0 minutes after intubation, 5 minutes after intubation	—

Secondary

Measure	Time frame
Incidence of endotracheal tube malposition, including endobronchial intubation, carinal impingement, and cuff malposition, as assessed by video bronchoscopyTimepoint: Immediately after endotracheal intubation and confirmation of ventilation (within 5 minutes of intubation);Number of adjustments required to achieve optimal tube position (carina-to-tip distance 4 5 cm)Timepoint: During the intraoperative period immediately following initial placement (within 10 minutes of intubation)	—

Measure

Time frame

Incidence of endotracheal tube malposition, including endobronchial intubation, carinal impingement, and cuff malposition, as assessed by video bronchoscopyTimepoint: Immediately after endotracheal intubation and confirmation of ventilation (within 5 minutes of intubation);Number of adjustments required to achieve optimal tube position (carina-to-tip distance 4 5 cm)Timepoint: During the intraoperative period immediately following initial placement (within 10 minutes of intubation)

—

Countries

India

Contacts

Public ContactChitra R

Sri Manakula Vinayagar Medical College and Hospital

chithu051191@gmail.com8667553707

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: May 1, 2026