Tell your healthcare provider if you have any allergies to foods or medicines, such as iodine, latex, contrast dye, tape, or local or general anesthetics.

Tell your healthcare provider about any medicines you take, especially if you are currently taking blood thinners. This includes over-the-counter medicines, herbs, and supplements. You may be told to stop some of the medicines you currently take.

Tell your healthcare provider if you have a pacemaker.

Tell your healthcare provider if you are pregnant or think you could be.

If you smoke, stop smoking as soon as possible before your procedure. This may improve your chances of a successful recovery and benefit your overall health. Smoking increases clot formation in the blood.

You will be given 1 or more medicines to help prevent blood clots from forming in the arteries. These antiplatelet medicines may include aspirin and prescription medicine. Take these as directed.

Pack for an overnight stay in the hospital.

Arrange for a ride to and from the hospital.

Follow any directions you are given for not eating or drinking before surgery.

Ask your healthcare provider which medicines to take during this period. Take them with a sip of water.

Stroke

Bleeding at the puncture site

Headache

Bleeding into the brain

Blood clot at the puncture site

Low blood pressure

Blood clot in the treated vessel

Reaction to contrast fluid

Heart rhythm problems, such as slow heart rate

Reblockage of the artery and possible need to get treatment again

Kidney function that gets worse

Heart attack

Death