Guidelines for Intercostal Drainage Tube Insertion
Small bore chest tubes (10-14F) should be the initial choice for most pneumothoraces and pleural effusions, as they are as effective as large-bore tubes while causing less patient discomfort. 1, 2
Indications for Chest Tube Insertion
Pneumothorax
- Large pneumothorax (≥3 cm apex-to-cupola distance or >30% of hemithorax)
- Symptomatic pneumothorax (respiratory distress, significant pain, hypoxemia)
- Secondary pneumothorax (except in patients who are not breathless with very small <1 cm or apical pneumothorax)
- Tension pneumothorax (after needle decompression)
- Failed simple aspiration or catheter aspiration
- Patients requiring positive pressure ventilation
Pleural Effusion/Fluid Collections
- Malignant pleural effusions
- Hemothorax
- Empyema/pleural infection
Tube Size Selection
Small bore tubes (10-14F):
Large bore tubes (20-32F):
- Consider only when small tubes fail
- May be needed for:
- Persistent large air leaks exceeding capacity of smaller tubes
- Significant hemothorax
- Thick purulent collections (empyema)
Insertion Technique
Patient Preparation and Positioning
- Position patient appropriately:
- For axillary approach: arm elevated above head
- For lateral decubitus: affected side up with arm over head
- For posterior approach: sitting upright leaning forward 1
Site Selection
- Small bore percutaneous drains: Insert at site suggested by ultrasound guidance 1
- Large bore surgical drains: Preferably place in mid-axillary line through the "safe triangle" 1, 2
- Safe triangle: bordered by anterior border of latissimus dorsi, lateral border of pectoralis major, and horizontal line at level of nipple
Sterile Technique
- Full aseptic technique is essential to avoid wound site infection or secondary empyema (reported rate ~1%) 1, 2
- Use sterile gloves, gown, equipment, and sterile towels
- Perform thorough skin cleansing with betadine or chlorhexidine over a large area 1
Anesthesia
- Local anesthetic infiltration:
- Raise dermal bleb with small gauge needle
- Infiltrate deeper tissues including subcutaneous tissue, intercostal muscles, periosteum of rib, and parietal pleura
- For adults: 0.25% bupivacaine (max 2 mg/kg) or 1% lidocaine (20-25 ml, max 3 mg/kg) 1
- Consider intrapleural local anesthetic bolus for post-insertion pain control 1
Insertion Procedure
- Never use substantial force or a trocar for insertion (associated with major organ injuries) 1
- For Seldinger technique (preferred for small bore tubes):
- Locate pleural space with needle and syringe
- Insert guidewire
- Dilate tract
- Pass catheter over guidewire
- Remove guidewire and connect to drainage system
Post-Insertion Management
Drainage System
- Connect to underwater seal drainage or commercial chest drainage system
- Consider adding a Heimlich flutter valve for ambulatory management of pneumothorax 1
Suction
- Suction is usually unnecessary initially
- If applied, use high volume, low pressure system (10-20 cm H₂O) 2
- Consider adding suction after 48 hours for persistent air leak 2
Important Precautions
- A bubbling chest tube should NEVER be clamped (risk of tension pneumothorax) 1
- Non-bubbling tubes should generally not be clamped 1
- If clamping is necessary, it should only be done under supervision of respiratory physician or thoracic surgeon, with patient in a specialized ward 1
- Immediately unclamp if patient becomes breathless or develops subcutaneous emphysema 1
Drainage Management
- For large pleural effusions, drain in a controlled fashion to reduce risk of re-expansion pulmonary edema 1
- Once radiographic confirmation of lung re-expansion is obtained, proceed with pleurodesis if indicated, without waiting for cessation of fluid drainage 1
Complications and Their Management
- Organ injury: lung, heart, major vessels, abdominal organs (more common with trocar use) 1, 3
- Infection: empyema (1-6% of cases) - use strict aseptic technique 1
- Subcutaneous emphysema: may indicate malpositioned/kinked tube 1
- Re-expansion pulmonary edema: avoid rapid drainage of large effusions 1
- Tube blockage: more common with blood or thick fluid collections
- Pain: use adequate local anesthesia and consider intrapleural analgesia 1
Removal Criteria
- Complete resolution of pneumothorax on chest radiograph
- No air leak (no bubbling in water seal chamber)
- Drainage <100-150 mL/24 hours (if hemothorax component) 2
Referral Criteria
- Pneumothoraces failing to respond within 48 hours should be referred to a respiratory physician 1
- Consider thoracic surgical consultation if air leak persists beyond 48 hours 2
- Earlier referral (day 2-3) for patients with underlying lung disease or large air leak 2
By following these guidelines, chest tube insertion can be performed safely and effectively while minimizing patient discomfort and complications.