C-MAC Blade D Video Vs Macintosh Laryngoscope for Double Lumen Tube Insertion

Double Lumen Tube (DLT) is a common airway management device, used to implement lung isolation technique during thoracic surgeries. Intubation of DLT is challenging because it is much larger in diameter and rotational insertion technique is associated with significant risk of prolong intubation, intubation failure, greater hemodynamic changes and airway trauma.

Objective of this study is to compare the outcome C-MAC blade D video laryngoscope and Macintosh laryngoscope for DLT insertion, in term of time taking for DLT intubation and hemodynamic changes to laryngoscopy.

This study is conducting at Department of Anesthesiology at SMBBIT, Pakistan. Data is collecting after taking approval from Ethical Review Committee and written informed consent from participants.

Participants are enrolling by primary investigator, day before surgery. All participants are undergoing simple randomization by lottery method.

During induction of aesthesia, time for intubation is noting from introduction of the laryngoscope blade till three complete capnograph cycles.

Participants have also been assessed for hemodynamic parameters {Heart Rate (HR), Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP) and Mean Arterial Pressure (MAP)} to intubation at 0 (Baseline), 1st Minute , 3rd Minute and 5th Minute after intubation.

After Completing data collection, Data analysis will be done by using SPSS version 26.

Inclusion criteria

• Mallampati 1 and 2.
• ASA 1 and 2.
• Patients who will be prepared for elective thoracic surgeries under general anesthesia.

Exclusion criteria

• Pregnant Patients.
• Patients with anticipated difficult airway.
• Patients with limited neck extension.
• Thyromental distance less than 6.5cm.
• BMI greater than 35. (Weight in kilogram (kg) divided by height in meters squared)
• Patients at a risk of aspiration.
• Failure to intubate the patient after 3 attempts.