McGRATH MAC Video Laryngoscope

McGRATH MAC Video Laryngoscope - To View or Not To View?

This study was designed to determine the first attempt success rate of tracheal intubation with the McGRATH™ MAC laryngoscope using direct visualization in patients with known difficult airways, as well as exploring the possibility of identifying a particular direct Cormack-Lehane (C-L) grade view where indirect (video) visualization can be most beneficial during laryngoscopy and intubation.

Inclusion Criteria:

• BMI < 50 kg/m2
• Two or more of the following inclusion criteria: Mallampati class: III-IV; Reduced mouth opening < 4 cm; Neck circumference > 40 cm for females and > 43 cm for males; Thyromental distance < 6 cm; Ratio of the patient's height to thyromental distance ≥ 23.5; Sternomental distance < 12 cm

Exclusion Criteria:

• BMI ≥ 50 kg/m2
• emergency status
• cervical injury or pathology
• neck irradiation
• known difficult airway
• risk of gastric aspiration
• hemodynamic instability
• requiring rapid sequence intubation