Overview

The investigators intend to compare the group using triple-cuffed endobronchial tube (VentiBroncTM Anchor) with the group using the conventional double-lumen endotracheal tube (Shiley®) in patients at high risk of malposition of the double-lumen endotracheal tube. The aim of this study is to determine if the use of VentiBroncTM Anchor increases the success rate of optimal double-lumen intubation to left main bronchus.

Eligibility

Inclusion Criteria:

Patients requiring left double-lumen endotracheal tube intubation for thoracic surgery.

        ASA physical status classification 2-4. Female patients aged 20-85 with a height of 160cm
        or less and a body mass index (BMI) of 25.0 kg/m2 or higher.
        Patients requiring VentiBroncTM Anchor 33Fr or Shiley® 32Fr intubation due to a left
        mainstem bronchus diameter of 11mm or less on chest CT.
        Exclusion Criteria:
        Intraluminal lesions in the left or right mainstem bronchi. History of airway surgery.
        Emergency surgery.