thoracostomy tube
Pronunciation: thor-ah-KOS-toh-mee
Large-bore drainage tube inserted into pleural space to evacuate air, blood, or fluid from the chest cavity.
Full Definition
A large-caliber drainage tube (typically 28-40 French) inserted through the chest wall into the pleural space to treat pneumothorax, hemothorax, or pleural effusion. Also known as a chest tube, thoracostomy tubes are inserted using the Seldinger technique or open surgical technique, typically through the fourth or fifth intercostal space in the mid-axillary line. The tube connects to a water seal drainage system that allows one-way evacuation of air and fluid while preventing atmospheric air from entering the pleural space. Proper positioning and function are confirmed by chest X-ray.
Usage
Usage note: Thoracostomy tube is the formal term; chest tube is commonly used synonym.
In Context
- "A 32-French thoracostomy tube was inserted for drainage of the massive hemothorax." — Procedural documentation
- "The thoracostomy tube output decreased to less than 50 mL per day, indicating readiness for removal." — Daily ICU note