Flexible Intubation Scope With or Without Video Laryngoscope in Supporting Endotracheal Tube Placement in Patients With Head and Neck Cancer Before Surgery

Inclusion Criteria: * Ages ≥ 18 years of age * All surgical patients with known or suspected difficult airways that meet at least three (3) of the Difficult Airway criteria \[Mallampati III-IV, Neck circumference \> 40 cm, Sternomental distance \< 12 cm, Thyromental distance \< 6 cm, Mouth opening \< 4 cm, BMI ≥ 35 kg/m2, Upper Lip Bite Test - ULBT (class III)\] or history of radiation to the head and neck area or oral pathology obstructing the glottic view * American Society of Anesthesiology (ASA) I-IV * Has provided written informed consent Exclusion Criteria: * Active bleeding from nasopharynx or oropharynx * Trismus * Oral pathology obstructing the glottic view * Planned awake or nasal intubation * Neuromuscular Blockade (NMB) contraindicated post-induction * Emergency endotracheal intubation and patients intubated pre and post-surgery * Surgical procedures such as Tracheostomy, Laryngectomy, Esophagectomy * Patient refusal or inability to consent for study participation * American Society of Anesthesiology (ASA) V * Pregnant females