Laryngoscopy and Coronary Artery Bypass Graft Surgery

Hemodynamic Response to Various Laryngoscopes During Tracheal Intubation in CABG Patients

In this prospective, randomized, controlled trial, the purpose is to compare Macintosh laryngoscope, EzVision® video laryngoscope, McGrath® video laryngoscope and Storz® video laryngoscope in terms of hemodynamic response associated with intubation in adult patients undergoing Coronary Artery Bypass Surgery (CABG).

During endotracheal intubation, laryngoscopy can significantly affect hemodynamic responses, including tachycardia and elevated blood pressure, which may be particularly detrimental to individuals with cardiovascular conditions. Various studies have explored the hemodynamic reactions associated with laryngeal stimulation through different intubation devices. Researchers hypothesize that endotracheal intubation using video laryngoscopy will elicit a reduced hemodynamic response compared to traditional (Macintosh) laryngoscopy. In this prospective and randomized clinical study, the purpose is to compare the Macintosh laryngoscope, EzVision® video laryngoscope, McGrath® video laryngoscope and Storz® video laryngoscope concerning haemodynamic response associated with intubation in adult patients undergoing Coronary Artery Bypass Surgery (CABG).

Inclusion Criteria:

• Age range between 18 and 75 years.
• Scheduled for elective coronary artery bypass surgery.
• Classified under American Society of Anesthesiologists (ASA) physical status II-III.
• Patients with no history of difficult intubation or associated risk factors.

Exclusion Criteria:

• Emergency case
• Predicted difficult airways
• Body mass index > 35 kilograms per meter squared
• Baseline hemodynamic instability