1/ In our last thread, we explored how vessels can collapse when MAP falls below a threshold — the Critical Closing Pressure (CCP) — creating a vascular choke point. But there’s a common misunderstanding we need to clear up 🧵👇 #MedX #Physiology #Haemodynamics x.com/icmteaching/st…
2/ The concept of the vascular waterfall helps explain this: When CCP rises above venous pressure, blood flow can cease completely — even if a pressure gradient still exists. Why “waterfall”? Because flow is no longer influenced by the pressure downstream.
@icmteaching Great threads, Tx! Still, one Q though- The pressure in the arterial tree gradually goes down as blood flows distally to smaller arterioles, so eventually the pressure in the vessel will be low enough to hit the choking point of CCP (~30-40mmHg) right? so MAP-CCP is always valid?
@icmteaching Interesting descriptions. I am trying to apply these concepts to the cardiovascular system. Its application seems particularly relevant to CTO, CTO PCI, and FlowReducer. Thank you again
@icmteaching Thanks for the great thread! As one of the many who get confused by the literature as you alluded to, would like to know if you have any recommended articles / books for further reading on the concept of CCP.