Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: scientizscht on 20/09/2018 19:55:10

Title: Why vascular stents don't last?
Post by: scientizscht on 20/09/2018 19:55:10

When you put a stent in blocked artery, theoretically it would never reblock as the metallic cylinder will always keep the point open.

However there is a kind of failure as people still die from blocked arteries.

Why?

Title: Re: Why vascular stents don't last?
Post by: evan_au on 20/09/2018 21:23:05

Blockages can occur in other parts of the artery.
Tissue can grow over and inside the stent, narrowing it again.
The stent can be a source of irritation/inflammation, and a site triggering formation of blood clots.
https://en.wikipedia.org/wiki/Coronary_stent#Risks