Comparing two laryngoscopes for double lumen tube insertion during thoracic surgery

Comparison Between C-MAC Blade D Video Laryngoscope and Macintosh Laryngoscope for Double Lumen Tube Insertion in Patients Undergoing Elective Thoracic Surgeries

Not applicable Interventional Shaheed Mohtarma Benazir Bhutto Institue of Trauma · NCT06759038

This study is testing which laryngoscope works better for inserting a special breathing tube in patients having chest surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 60 Years
SexAll
SponsorShaheed Mohtarma Benazir Bhutto Institue of Trauma Academic / other
Locations1 site (Karachi, Sindh)
Trial IDNCT06759038 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to determine which laryngoscope, the C-MAC blade D video laryngoscope or the Macintosh laryngoscope, is more effective for double lumen tube (DLT) insertion in patients undergoing elective thoracic surgeries. Participants will be randomly assigned to one of two groups, with intubation times and hemodynamic changes monitored during the procedure. The study will assess the time taken for intubation and changes in heart rate and blood pressure at various intervals post-intubation. Data will be analyzed using SPSS to evaluate the outcomes of each laryngoscope type.

Who should consider this trial

Good fit: Ideal candidates are patients classified as Mallampati 1 or 2 and ASA 1 or 2, scheduled for elective thoracic surgeries under general anesthesia.

Not a fit: Patients with anticipated difficult airways, significant obesity, or other complications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve intubation efficiency and patient safety during thoracic surgeries.

How similar studies have performed: While there have been studies comparing different laryngoscopes, this specific comparison of the C-MAC blade D video laryngoscope and the Macintosh laryngoscope for DLT insertion is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
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.

Where this trial is running

Karachi, Sindh

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Video LaryngoscopeDouble Lumen Tube IntubationElective Thoracic Surgery
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.