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What are possible side effects of sclerotherapy?

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Hi, I'm Dr. Steve Epstein. I'm a clinical specialist here at Vascular Epicenter. I'm board-certified in diagnostic and interventional, or invasive, radiology, and I've been in clinical practice for more than 20 years. What are possible side effects of sclerotherapy? When we give sclerotherapy, we are injecting an irritant, on purpose, into the spider vein or the reticular vein. When we do that, we want the injection to be in the vein, not outside the vein. Side effects that we encounter are from injecting too much outside the vein. If it's going to irritate the vein, it's going to irritate tissues outside the vein. So we want to make sure that we are completely intravascular when we are administering the sclerotherapy agent. If too much is injected outside the vein, then we can end up with redness, what's called hyperpigmentation. What we want to do also is be sure not to inject too high of a concentration of the sclerosant, inject too hard, too exuberantly, and also make sure that what we choose for the individual spider or reticular vein is the appropriate sclerosant for that patient.

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