retrograde cerebral perfusion
Also written as: RCP — Retrograde Cerebral Perfusion
Technique providing blood flow to the brain through venous circulation during aortic arch surgery when antegrade flow is interrupted.
Full Definition
Retrograde cerebral perfusion (RCP) is a neuroprotective technique used during aortic arch surgery where blood is delivered to the brain through the superior vena cava in a retrograde fashion through the venous system. This method provides some degree of cerebral protection and cooling during periods when normal antegrade arterial perfusion cannot be maintained. RCP is typically used in conjunction with moderate hypothermia and can extend safe operative times beyond what would be possible with circulatory arrest alone, though its neuroprotective efficacy remains debated compared to selective antegrade cerebral perfusion.
Usage
Usage note: Commonly abbreviated as RCP; contrast with antegrade perfusion methods.
In Context
- "Retrograde cerebral perfusion was initiated through the superior vena cava at a flow rate of 500 mL/min." — operative report
- "The surgical team chose retrograde cerebral perfusion over selective antegrade perfusion due to anatomical constraints." — case review