Effectiveness of C-MAC Video-stylet Versus C-MAC D- Blade Video-laryngoscope for Tracheal Intubation

Effectiveness of C-MAC Video-stylet Versus C-MAC D- Blade Video-laryngoscope for Tracheal Intubation in Patients With Predicted Difficult Airway: Randomized Comparative Study

Videolaryngoscopy provides a better laryngeal view and do not need airway alignment for tracheal intubation.

The C-MAC-VS can be connected easily to the same C- MAC monitor and Pocket Monitor without requiring any additional light source and camera. This device is great for cases with limited mouth opening, airway obstruction and difficult intubation. C-MAC-VS has no lumens so it's very easy to clean and it can accommodates a size ETT 6.0 and greater.

Inclusion Criteria:

• patients with BMI ≥ 30 kg/m2,
• presence of any predictors of difficult intubation;
• Mallampati score > =3;
• inter-incisor distance < 3 cm;
• thyromental distance < 6 cm;
• neck extension < 80°from neck flexion;
• cervical spine instability; history of difficult endotracheal intubation or difficult mask ventilation

Exclusion Criteria:

• patients have increased risk of pulmonary aspiration;
• have significant medical diseases in term of cardiac, respiratory, hepatic, renal