Procedure Guide


Indications

New-onset or large/symptomatic pleural effusion

Can be diagnostic or therapeutic


Contraindications

  • Unsafe window for percutaneous access

  • Uncorrected coagulopathy (INR >2.0)


Pre-procedure Care

  • Review imaging if available or use US to assess volume and vasculature.

  • Can continue antiplatelet and anticoagulation.


Procedure

  • Patient seated on edge of bed leaning over a table to open up the posterior ribs, decubitus with access side down, or supine

  • Pre-scan and mark spot

  • Anesthetize the skin, subcutaneous tissues, and pleura.

  • Advance catheter into the pleural cavity under ultrasound guidance (lots of variation)

    • Classic is a Yueh needle with straight or pigtail catheter to advance over the needle.

    • Some kits come with an atraumatic “centesis” needle with catheter for access.

    • Others will use a Yueh or 19G coaxial needle, advance a working wire, and place a 5 Fr pigtail or 7-8 Fr pigtail drain.

    • Other directly trocar in a 7-8 Fr pigtail drain to reduce the number of exchanges for patient comfort

  • Attached tubing to vacuum bottle or wall suction.

    • Good to not drain too quickly or too much to avoid re-expansion pulmonary edema. Most recommend no more the 1.2 L at one time. Others say 1 or 2 L or until patient begins to cough.

    • If the effusion is very large, can leave a pigtail drain in place for more gradual drainage overnight.

  • Remove catheter and achieve hemostasis.


Complications

Pneumothorax (1-3%), re-expansion pulmonary edema, infection, bleeding, and liver/spleen puncture are very rare


Post-procedure care

  • If diagnostic, send fluid for appropriate studies, e.g., cytology, protein, LDH, triglycerides.

  • Post-procedure CXR can be helpful to assess for pneumothorax or re-expansion pulmonary edema.