11. Central Lines

Last updated on 06/07/2022

To reduce the risk of air embolism, all central lines should be removed in Trendelenberg position or flat and either in a Valsalva Maneuver (blow into a 20mL Syringe) or on expiration (Intrathoracic pressure needs to be greater than atmospheric pressure).

Withdrawal of blood and removing central lines is identical to that of PICC lines.

 


Complications

  • Air embolus
  • Catheter fracture and embolism
  • Dislodgement of thrombus/fibrin sheath
  • Haemorrhage/bleeding
  • Arterial complications
    • bleeding
    • compression
    • brachial plexus 

 


If a patient colapses suddenly Potential air embolus
Call arrest team 2222. CPR if pulseless.

 


Air Embolism

  • Emergency situation
  • Symptoms
    • chest pain
    • dyspnoea
    • coughing
    • agitation
  • Signs
    • acute Sp02 desaturation
    •  hypoxaemia
    • tachycardia
    • hypotension
    • sucking air sounds
    • murmur
    • arrhythmia
  • Management
    • left Trendelenburg position
    • high flow O2 

 


Resistance

  • Never pull a central line against resistance
  • Stop if continuing resistance felt and get senior help

 


Non-intact PICCline

  • Occurs if the catheter breaks and the remnant is completely retained
  • Immobilise the limb and explain clearly to the patient the need to keep the limb immobilised
  • Carefully apply TegaDerm over the insertion site
  • Call senior help ASAP