Comparison of Intubation Using Video Laryngeal Mask and Video Laryngoscope in Elective Surgical Patients

Condition(s) studied

Investigational drug(s) / intervention(s)

Video Laryngoscope Intubation with Bougie: Participants in this group will undergo tracheal intubation using a video laryngoscope under general anesthesia. After induction, a standard bougie will be advanced through the vocal cords under video guidance, and the endotracheal tube will be railroaded over the bougie into the trachea. The primary outcome will be intubation time, measured from insertion of the device until confirmation of successful tracheal intubation. Additional parameters such as intubation success rate, ease of insertion, and complications (e.g., desaturation, airway trauma, failed attempts) will also be recorded. No extra procedures will be performed beyond routine airway management.

Video Laryngeal Mask Airway (SaCoVLM) Intubation with Bougie: Participants in this group will undergo tracheal intubation using a video laryngeal mask airway (SaCoVLM) under general anesthesia. After successful placement of the device, a standard bougie will be inserted through the SaCoVLM's dedicated lumen, and an endotracheal tube will be advanced over the bougie into the trachea under video guidance. The primary outcome will be intubation time, defined as the duration from device insertion to confirmation of successful intubation. Secondary outcomes include intubation success rate, ease of insertion, and complications such as desaturation, trauma, or failed attempts. As both techniques are part of routine practice, no additional risks will be introduced.

Study summary

This study compares two airway devices that are commonly used during elective surgery: the video laryngeal mask airway (VLM) and the video laryngoscope (VLS). Both are part of routine anesthesia practice. Our main focus is to measure how long intubation takes with each device and to see how successful the intubation is. The study does not involve any extra procedures or risks; everything will be carried out as part of normal patient care.

Eligibility

Primary outcome measure(s)

• Time to Successful Intubation — Intraoperative (from tube passing the upper incisors to the third ETCO₂ waveform)
  The time from when the endotracheal tube passes the upper incisors to the appearance of three consecutive end-tidal CO₂ (ETCO₂) waveforms on the capnograph. This will be used as the objective marker of successful tracheal intubation. Timing will be recorded in seconds by an independent observer using a stopwatch.

Trial sites (1)

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