Efficiency of the King Vision Video Laryngoscope

Recep Tayyip Erdogan University

Status: Completed

Conditions: Respiratory Failure; Intubation

Treatments: Device: Macintosh laryngoscope; Device: King Vision video laryngoscope

Study type: Interventional

Funder types: Other

Identifiers

NCT02482870

2014/109

Details and patient eligibility

About

The investigators studied the efficiency of Macintosh laryngoscope and the King Vision video laryngoscope in adult patients scheduled for general anesthesia. Best Cormack-Lehane score obtained, glottic view time, intubation time, time to ventilation, correlation between the Mallampati classification and the Cormack-Lehane grades, and complications related to laryngoscopy and intubation has been investigated.

Full description

Securing the airway is essential in general anesthesia. Anesthetic problems related to airway management constitute 17% of closed claims, difficult intubation being the most common one with an occurrence rate of 5%. Problems like delayed intubation, misplaced tracheal tube, or airway trauma are frequently seen in outpatient settings and end up with either death or hypoxic brain damage. Therefore, preoperative visit should include detailed assessment of the airways according to clues of difficult intubation.Several studies compared the King Vision video laryngoscope with other laryngoscopes in manikins simulating difficult airway scenarios, and reported better glottic views. The investigators aimed to study the correlation between the Mallampati classification and the glottic views (Cormack-Lehane grade) obtained with Macintosh laryngoscopy, and the King Vision video laryngoscopy in adult patients scheduled for general anesthesia. Secondary outcomes will be successful intubation rate, time to obtain the best view, time to successful intubation, and complications related to laryngoscopy will be compared.

Enrollment: 388 patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• scheduled for general anesthesia
• age higher than 18 years
• age lower than 60 years

Exclusion criteria

• emergency surgery
• mouth opening less than 2 cm
• American Society of Anesthesiologists (ASA) score higher than 2
• oropharyngeal anomaly
• glottic or supraglottic mass
• history of surgery due to oropharyngeal anomaly, glottic or supraglottic mass

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Sequential Assignment

Masking: Double Blind

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388 participants in 2 patient groups

Macintosh

Active Comparator group

Description:

Patients scheduled for general anesthesia during the study period, who had been intubated with Macintosh laryngoscope first and then with KingVision videolaryngoscope.

Treatment:

Device: King Vision video laryngoscope

Device: Macintosh laryngoscope

KingVision

Active Comparator group

Description:

Patients scheduled for general anesthesia during the study period, who had been intubated with King Vision videolaryngoscope first and then with Macintosh laryngoscope.

Treatment:

Device: King Vision video laryngoscope

Device: Macintosh laryngoscope