Cryoablation for Fibro-Adipose Vascular Anomaly | What to Expect

What are the benefits of cryoablation for vascular anomalies?

Children with vascular anomalies who undergo cryoablation benefit from:

  • Same-day procedure or a one-night hospital stay (surgical stays can be up to one month)
  • Minimal recovery periods
  • Fewer post-operative infections and complications than open surgery
  • No open incisions or visible scars
  • Reduced chance of recurrence
  • Ability to repeat treatment and do it in conjunction with other treatments (such as medical treatment with sirolimus, a common medication for vascular anomalies)

How do I explain cryoablation to my child?

Your child’s care team will provide tips for preparing your child. In addition, you may want to:

  • Tell your child in simple terms why cryoablation is necessary and what will happen
  • Assure your child you will be close by during the procedure and present as soon as it’s over
  • Bring your child’s favorite toy or blanket to the hospital
  • Prepare your child for a small bandage over the needle site

Read more tips for talking to your children in our age-related guidelines.

How do I prepare for cryoablation?

Before undergoing cryoablation, you may need an appointment in our pre-op clinic. During this visit, you and your child will:

  • review important details and questions with a pre-op nurse
  • meet with an anesthesiologist, who will explain how we will help your child relax and sleep during the procedure and review the consent process
  • undergo any necessary laboratory testing, such as blood work

Your child may have a nerve-block catheter put in place during the procedure to make the post-procedure recovery pain free.

What happens the day of the procedure?

We recommend you arrive at Admitting at least one to two hours before the procedure.

You will meet with an interventional radiologist to review the procedure and sign a consent form, so the procedure may begin.

  • You must be your child’s legal guardian to sign the consent form.
  • If you are a legal guardian and not a parent, you must bring legal paperwork with you showing proof of legal guardianship.
  • Get answers to frequently asked questions about consenting to tests, treatments and procedures at Boston Children’s Hospital.

Once the consent process is done, there are a few extra steps.

  • Your child will change into a hospital gown.
  • Our team will bring you and your child to the room where the procedure takes place.
  • The anesthesiologist will deliver medicine, called anesthesia, through an IV to help your child relax. (Young children may receive the medicine through a mask.) You may be able stay in the room until your child is asleep.
  • You will wait in the third-floor, family-waiting area during the procedure.

For many patients, cryoablation requires a short overnight stay. Read more about preparing for an overnight stay.

What happens during cryoablation for vascular anomalies?

Our Interventional Radiology team performs cryoablation. An interventional radiologist is a board-certified specialist who performs minimally invasive, targeted treatments throughout the body that do not require open surgery.

Your child is asleep under general anesthesia during the procedure. During cryoablation, the interventional radiologist will:

  • insert a tiny, hollow needle in or next to the malformation
  • use advanced imaging technology ) to precisely guide the insertion
  • target the malformation with cooled gases that pass through the needle, causing the abnormal tissues to freeze and destroy abnormal tissue
  • remove the needle when the treatment is done and cover the insertion site with a small bandage

What is the follow up after the procedure?

Your child will be admitted overnight for observation and pain control. We will remove the nerve catheter the following morning. The interventional radiology team will assess your child before discharge. We will discuss further follow-up with you before you go home.