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Pleural Drain

Image by Robina Weermeijer

Pleural drain procedures, also known as thoracostomy or chest tube placement, are interventional techniques employed to alleviate various pathologies affecting the pleural space. The pleural space is the thin, fluid-filled cavity between the visceral and parietal pleurae, which surround the lungs.

These procedures involve the insertion of a specially designed drainage tube, known as a chest tube or thoracostomy tube, into the pleural space. The tube is typically placed through an incision made in the chest wall, guided by imaging techniques such as fluoroscopy or ultrasound. The goal is to establish a controlled pathway for the drainage of fluid, air, or blood that may have accumulated within the pleural cavity.

Once the chest tube is positioned correctly, it is connected to a drainage system, such as a collection chamber or underwater seal, allowing the fluid or air to be evacuated. This drainage system may incorporate suction, which helps to enhance the removal of fluid or air from the pleural space, depending on the clinical indication.

Pleural drain procedures are indicated in various conditions, including pneumothorax (air accumulation in the pleural space), pleural effusion (abnormal fluid accumulation), hemothorax (blood accumulation), empyema (pus accumulation), or to facilitate surgical interventions within the pleural cavity. By removing the accumulated fluid or air, these procedures aim to relieve symptoms, improve lung function, and promote the resolution of the underlying pathology.

Potential complications associated with pleural drain procedures include bleeding, infection, injury to nearby structures, or the development of persistent air leaks. Thus, adherence to strict aseptic techniques, appropriate tube positioning, and post-procedural care are critical for achieving optimal patient outcomes.

A&I Protocol

Patient is positioned seated on the side of the bed with their arms supported on table and pillow and feet comfortably positioned on a short stool.

  • Ultrasound guidance is used by the interventional radiographer to mark the intercostal space (usually lower and lateral than medial) which demonstrates the pleural fluid.

  • Seldinger technique is used to gain access into the affected pleural cavity using a 6F Safe-T Centesis-type catheter or similar.

  • With the change in resistance on the catheter, the attached luer-lock syringe is used to aspirate some of the pleural fluid, and then the trocar is removed leaving the pigtail catheter in place.

  • A drainage bag is attached to the catheter and the site is dressed.

  • The patient is positioned comfortably back on their bed to wait for the pleural fluid to completely drain.

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Ultrasound image demonstrating a collection pleural fluid (anechoic) in the pleural cavity.

References

  1. Matin TN, Gleeson FV. Interventional radiology of pleural diseases. Respirology. 2011 Apr;16(3):419–29.

  2. Klein JS, Schultz S. Interventional chest radiology. Curr Probl Diagn Radiol. 1992;21(6):219–77.

  3. Isus G, Vollmer I. Ultrasound-guided interventional radiology procedures in the chest. Radiologia (Engl Ed). 2021;63(6):536–46. 

  4. Klein JS, Schultz S, Heffner JE. Interventional radiology of the chest: image-guided percutaneous drainage of pleural effusions, lung abscess, and pneumothorax. AJR Am J Roentgenol. 1995 Mar;164(3):581–8. 

  5. McDermott S, Levis DA, Arellano RS. Chest drainage. Semin Intervent Radiol. 2012 Dec;29(4):247–55.
     

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