Review Note

Last Update: 03/02/2025 09:52 AM

Current Deck: ACG Part 2::Thoracic SSU

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SS_TS 1.24 Discuss the management of chest drains and pleural drainage systems for thoracic trauma

Indications
  • Drainage of air or fluid from intrapleural space. 
  • Can be use for pleural lavage rewarming in hypothermia. 

METHOD OF INSERTION AND/OR USE
Anatomy
  • landmarks = “triangle of safety”: anterior to mid axillary line, posterior to pectoral groove, above 5th intercostal space (ideally above 4th in pregnant patients)
  • layers that must be breached (superficial to deep) = skin, subcutaneous tissue, intercostal muscles, parietal pleura
  • awareness of the intercostal bundle sitting on the inferior aspect of the ribs
Equipment
  • sterile clothing (gloves, gown, hat, mask, facial shield)
  • chlorhexidine in 80% alcohol
  • sterile drapes
  • lignocaine 1%
  • 22G long needle
  • scalpel
  • curved forceps
  • chest drain (>24 French for blood)
  • suture material
  • underwater seal drain
  • dressing
Technique
  • explain procedure, obtain consent, sterile environment with equipment ready, skilled assistant, adequate analgesia, adequate resuscitation equipment and recovery facilities
  • check coagulation profile, Hb, platelet number -> transfuse accordingly
  • position patient (supine or 30 degrees head up) with arm abducted & elbow flexed
  • sterile preparation of area
  • identify rib spaces (4th to 7th) on left and anterior mid axillary line
  • skin infiltration with lignocaine 1%
    • infiltrate down to parietal pleura (ensuring needle travels over the top of the chosen rib to protect neurovascular bundle)
  • continuous aspiration of needle should reveal blood or air once in the pleural space
  • make an incision following line of ribs with scalpel (1 to 2cm long)
  • blunt dissection with finger or blunt forceps (this will ensure adherent lung is moved from insertion site)
  • once parietal pleura breeched there should be a rush of blood
  • dilate with finger
  • load chest drain onto curved forceps (orientated towards the apex)
  • use forceps to allow the clamped drain to follow the true lumen that has been created
  • insert drain until an adequate length is within the pleural cavity (will depend of patient habitus)
  • suture in place and dress with a sterile dressing
  • connect to underwater seal drain (connections should be stable and easy to attach in a sterile manner)

POST INSERTION MANAGEMENT
  • CXR to confirm position - all holes should be inside the thoracic cavity, not kinked, ideally not abbuting lung apex or mediastinum. 
  • If drainage exceeds 1.5L, at risk of re-expansion oedema, after 1.5L drained. Recommended to clamp for 15mins before 
  • In haemothoraces >100ml/hr ongoing loss indicates possible arterial bleed and further investigation warranted. 
  • Normal pleural cavity has 4-20ml pleural fluid and turnover 0.2ml/kg/hr therefore if drain output under this it can be safely removed
    • Usually removed if output <200ml/day
  • If drain stops bubbling
    • Pneumothorax reexpanded 
    • Drain is kinked
    • Suction disconnected 
  • If stops swinging
    • Lung re-expanded
    • kinked/blocked 
    • Dislodged

Complication management
  • Subcut emphysema
    • 100% FiO2 
    • Resite drain 
    • Can do infraclavicular blowhole incisions or subcutaneous catheters. 

https://derangedphysiology.com/main/required-reading/intensive-care-procedures/Chapter-261/thoracocentesis-chest-drain