CompletedNot Applicable

King Vision vs Macintosh Laryngoscopy for Intubation Time in Novice Users

Turkey (Türkiye)70 participantsStarted 2023-01-01

Plain-language summary

This study evaluated two different devices used for placing a breathing tube (endotracheal intubation) in adult patients undergoing elective surgery. The aim was to compare the King Vision videolaryngoscope, which has a camera and a guiding channel for the tube, with the traditional Macintosh laryngoscope, which allows doctors to look directly at the vocal cords. The study focused on how long it takes to successfully insert the tube, the need for additional maneuvers during the procedure, and the overall success rate of first attempts. The procedures were performed by novice operators under supervision.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adult patients (≥18 years old) scheduled for elective surgery under general anesthesia requiring orotracheal intubation * American Society of Anesthesiologists (ASA) physical status I-II * Mallampati airway classification I-II * Written informed consent obtained from the patient Exclusion Criteria: * Predicted or known difficult airway: Mallampati III-IV, inter-incisor distance \<2.5 cm, thyromental distance \<6 cm, limited cervical spine mobility * History of difficult intubation or need for awake/rapid-sequence intubation * Upper airway pathology (tumour, trauma, infection), limited mouth opening, or craniofacial anomalies * Emergency surgery, high aspiration risk, or full stomach * Severe cardiopulmonary instability (e.g., shock, severe hypoxaemia) * Pregnancy or breastfeeding * BMI \>35 kg/m² (if your protocol excludes obesity; remove if not applicable) * Participation refusal or inability to consent

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Time to successful endotracheal intubation (seconds)

Timeframe: During intubation (intraoperative period, approximately 1-2 minutes)

Trial details

NCT IDNCT07174050

SponsorHitit University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2023-07-31

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