Pigtail catheter placement should be performed using sterile technique, proper anatomical landmarks (typically 4th–5th intercostal space, mid-axillary line), careful local anesthesia, and wire-guided insertion to ensure safe entry into the pleural space.

Patient Preparation and Sterile Technique

• Position the patient supine or slightly upright with the arm abducted to expose the lateral chest wall .
• Prepare a sterile field and wear mask, sterile gown, gloves, and eye protection .
• Administer weight-based prophylactic antibiotics if indicated and provide local and intravenous analgesia .

Anatomical Landmarks

• The preferred insertion site is the 4th–5th intercostal space along the mid-axillary line, minimizing skin-to-pleura distance and avoiding thick adipose tissue .
• For anterior pneumothorax, the 2nd intercostal space, mid-clavicular line may be used .
• Always insert the needle slightly above the rib to avoid the intercostal neurovascular bundle located beneath each rib .

Anesthesia and Initial Needle Insertion

• Create a skin wheal with lidocaine and infiltrate down to the pleura .
• Advance the introducer needle attached to a syringe slowly, aspirating to confirm entry into the pleural space by air or fluid return .

Wire-Guided Catheter Placement

• Insert a guide wire through the needle into the pleural space, ensuring it advances without resistance .
• Make a small skin incision at the wire entry point and advance a dilator over the wire to create a tract through subcutaneous tissue and pleura .
• Remove the dilator and advance the pigtail catheter over the wire until all portholes are inside the pleural cavity .
• Slowly remove the guide wire, allowing the catheter to curl naturally within the pleural space .

Securing and Connecting the Catheter

• Suture the catheter to the skin to prevent dislodgement .
• Connect to a closed drainage system or Heimlich valve, ensuring proper water seal and suction if indicated .
• Confirm placement with chest X-ray and observe for air or fluid drainage .

Additional Considerations

• Ultrasound guidance can improve safety, especially in patients with small or loculated effusions .
• Avoid insertion in empyema or loculated effusions where pigtail success is limited .
• Monitor for complications such as bleeding, infection, or malposition . By following these principles—proper landmarks, careful anesthesia, wire-guided insertion, and secure drainage connection—pigtail catheter placement can be performed safely and effectively.