double-lumen tube
A specialized endotracheal tube with two lumens allowing independent ventilation of each lung during thoracic surgery.
Full Definition
A double-lumen tube (DLT) is an endotracheal tube featuring two separate lumens and cuffs, designed to provide one-lung ventilation during thoracic procedures. The tube allows the anesthesiologist to ventilate each lung independently, enabling collapse of the operative lung while maintaining ventilation of the contralateral lung. DLTs are available in left and right configurations, with left-sided tubes being more commonly used due to anatomical considerations. Proper positioning requires fiberoptic bronchoscopy confirmation to ensure optimal lung isolation.
Usage
Usage note: Always hyphenated; abbreviated as DLT in clinical notes.
In Context
- "A 37-French left-sided double-lumen tube was inserted for the planned thoracotomy." — Anesthesia record
- "The double-lumen tube position was verified bronchoscopically before patient positioning." — Procedure documentation