Comparison of King Vision Video Laryngoscope to McGrath MAC Video Laryngoscope for Nasal Intubation

Nasal Intubation Using the King Vision Video Laryngoscope:a Randomized,Controlled Comparison With McGrath MAC Video Laryngoscope

This study was designed to determine the comparison between the King Vision video laryngoscope and McGrath MAC video laryngoscope for nasotracheal intubation.Patients were divided into 2 groups of 40 patients each.Patients of King Vision group [n=40]and Macintosh group [n=40]were intubated using respective devices.This study is the first to search the use of King Vision video laryngoscope for nasotracheal intubation in difficult airway.

Inclusion Criteria:

• ASA physical status 1-2
• Scheduled for general anesthesia with nasotracheal intubation
• Cormach-Lehane score 3-4

Exclusion Criteria:

• contraindications to nasal intubation
• Patients with a history of anti-hypertensive drugs