Central Line Removal: Step-by-Step Clinical Procedure (CVC and Tunneled)
Step-by-step clinical procedure for removing a central venous catheter and tunneled catheters: Trendelenburg positioning, air-embolism prevention, Valsalva, hemostasis, tip culture, and site-specific considerations.
Guide
For clinicians
Central Line Removal: Step-by-Step Clinical Procedure
Removing a central venous catheter is a high-frequency procedure with a low but real risk of air embolism and bleeding. The discipline of correct positioning, breath-hold timing, and immediate site occlusion is what makes it safe. This guide covers non-tunneled CVC removal in detail and the key differences for tunneled catheters.
Parent guide: Central Venous Catheters: Complete Clinical Reference
Before Removal
- Order and indication confirmed; line no longer needed.
- Coagulation: review platelets, INR, and anticoagulants. Correct coagulopathy or hold anticoagulation per policy where feasible — central sites are not directly compressible like a PICC exit, so bleeding risk matters.
- Supplies: sterile gauze, air-occlusive dressing materials (petroleum gauze + transparent dressing), suture-removal kit if sutured, sterile container if a tip culture is anticipated.
The Procedure (Non-Tunneled CVC)
- Confirm order; assess coagulation.
- Position: Trendelenburg for IJ/subclavian; supine flat for femoral.
- Hand hygiene, mask, gloves; remove dressing and sutures.
- Valsalva / expiratory hold timed to withdrawal.
- Withdraw steadily, parallel to the vessel; never force.
- Pressure ≥5 min (longer if anticoagulated); air-occlusive dressing.
- Keep flat ~30 min; inspect/measure catheter; tip culture only if infection suspected.
- Document.
Site-Specific Considerations
| Site | Position | Notes |
|---|---|---|
| Internal jugular | Trendelenburg | High air-embolism risk; strict breath-hold and occlusion |
| Subclavian | Trendelenburg | Non-compressible — prolonged pressure; watch for bleeding |
| Femoral | Supine flat | Low air-embolism risk; firm pressure for hemostasis; bed rest per policy |
| Tunneled (Hickman/Broviac/Groshong) | Supine | Cuff must be freed (traction or cut-down); minor procedure |
Complications and Response
- Air embolism: place in left lateral Trendelenburg (Durant maneuver), high-flow oxygen, call rapid response, do not leave the patient.
- Bleeding/hematoma: sustained pressure; escalate for subclavian sites that won’t tamponade.
- Retained fragment / catheter fracture: apply a proximal tourniquet if an arm device, keep the patient still, stat imaging, escalate.
Related Guides
- Central Venous Catheters: Complete Clinical Reference
- Tunneled Central Venous Catheters (Hickman, Broviac, Groshong)
- PICC Line Removal Procedure
- Air Embolism Prevention
References
- Gorski LA, et al. (2021). Infusion Therapy Standards of Practice (8th ed.). Journal of Infusion Nursing, 44(Suppl 1), S1–S224.
- O’Grady NP, et al. (2011). Guidelines for the prevention of intravascular catheter-related infections. Clinical Infectious Diseases, 52(9), e162–e193.
- Mermel LA, et al. (2009). Clinical practice guidelines for the diagnosis and management of intravascular catheter-related infection: 2009 update by the IDSA. Clinical Infectious Diseases, 49(1), 1–45.
- Cook LS. (2013). Infusion-related air embolism. Journal of Infusion Nursing, 36(1), 26–36.
Frequently asked questions
Why is a patient placed in Trendelenburg to remove a central line?
Trendelenburg (head-down) positioning places an internal jugular or subclavian insertion site below the level of the heart, which raises central venous pressure at the site and prevents air from being pulled into the vein through the open catheter tract during removal. Combined with the Valsalva maneuver and an immediate air-occlusive dressing, it is the key step to prevent air embolism.
How do you prevent air embolism when removing a central line?
Position the patient supine in Trendelenburg for IJ/subclavian lines, have the patient perform Valsalva (or time removal to expiration in a ventilated patient), withdraw during that breath hold, apply immediate firm pressure, and seal the site with an air-occlusive dressing. Keep the patient flat for about 30 minutes afterward.
When should a central line tip be sent for culture?
Send the catheter tip for semiquantitative culture only when catheter-related bloodstream infection is clinically suspected, ideally paired with blood cultures. Cut the distal 5 cm of the tip aseptically into a sterile container. Routine culturing of all removed tips is not recommended.
How is tunneled catheter removal different from a regular central line?
A non-tunneled CVC is removed at the bedside by simple traction. A tunneled catheter (Hickman, Broviac, Groshong) has a Dacron cuff fibrosed into the subcutaneous tunnel, so removal requires freeing the cuff — by firm traction or a small cut-down under local anesthetic — and is often performed as a minor procedure. Both follow the same air-embolism precautions.