It is said that with Sclerotherapy there is a "High Risk" of having a Stroke. What are the chances for this risk?

September 8, 2014
Asked By:VeinProblem in Ireland, IE

It is said that with Sclerotherapy there is a high Risk of having a Stroke / DVT, both around the time of treatment? and anytime after even years after if the veins started to re-open they could send some clotted blood that could circulate and block a small artery? What are the chances for this risk? Or how often does this happen?