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Related Experiment Video

Updated: Jun 15, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Published on: November 10, 2023

Improved drainage with active chest tube clearance.

Akira Shiose¹, Tohru Takaseya, Hideyuki Fumoto

¹Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA.

Interactive Cardiovascular and Thoracic Surgery

|February 25, 2010

Summary

A new chest drainage system with active tube clearance significantly enhances fluid drainage and maintains tube patency. This innovative approach reduces retained blood and clots compared to standard chest tubes.

Related Experiment Videos

Last Updated: Jun 15, 2026

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Local Anesthetic Thoracoscopy for Undiagnosed Pleural Effusion

Published on: November 10, 2023

Area of Science:

Thoracic Surgery
Medical Device Innovation
Surgical Drainage

Background:

Chest drainage systems are crucial for managing pleural effusions and hemothorax.
Maintaining tube patency is essential for effective drainage and preventing complications.
Current systems can be prone to blockage by blood clots, necessitating manual interventions.

Purpose of the Study:

To evaluate the efficacy of a novel chest drainage system.
To assess the system's ability to improve drainage and maintain tube patency.
To compare the new system against a standard chest tube in a preclinical model.

Main Methods:

A novel guide wire-based active chest tube clearance system was tested.
The system was compared to a standard 32 Fr chest tube in five pigs.
Acute bleeding was simulated, and drainage volume and retained blood/clots were measured over 2 hours.

Main Results:

The novel system demonstrated significantly higher drainage volume (670+/-105 ml) compared to the standard tube (239+/-131 ml; P=0.01).
Significantly less residual blood and clots were found with the new system (150+/-107 ml) versus the standard tube (571+/-248 ml; P=0.04).
The novel system maintained patency without requiring manual tube manipulations.

Conclusions:

The novel chest drainage system with active clearance significantly improves drainage efficacy.
The system effectively reduces retained blood and clots in the pleural space.
This technology offers a promising alternative to standard chest drainage, minimizing the need for interventions.