Childen's Hospital Boston  300 Longwood Avenue
Boston, MA 02115
(617) 355-6000
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My Child Has:
Endovenous Laser Ablation
Programs that perform this procedure
 Interventional Radiology Division  
Endovenous laser ablation is a procedure used to treat some types of vascular malformations. A diode laser fiber, introduced into the malformed veins through a catheter, creates energy that is absorbed by the blood within the abnormal blood vessels comprising the vascular malformation. This energy then generates steam bubbles within the blood. The steam bubbles transfer heat to the cells that line the walls of the blood vessel. This heat damages the abnormal blood vessel. Over several months following the procedure, the abnormal blood vessel eventually shrinks in size.
Why is it necessary?
Endovenous laser ablation is used to reduce the size of vascular malformations and to ease symptoms such as pain, swelling and disfigurement.
Is it safe?
Endovenous laser ablation is a new treatment for vascular malformations, but it has been used successfully for more than 5 years in the treatment of varicose veins, a related medical problem.

Use of endovenous laser ablation for vascular malformations to date has proved successful in decreasing pain, swelling, and disfigurement associated with vascular malformations without significant side effects.

Endovenous laser ablation is believed to result in a lower rate of formation of blood clots compared with other treatments currently in use for vascular malformations.

As with any invasive procedure, complications can occur. Possible complications related to this procedure include injury to the skin and local nerves.

Who performs the procedure?
A doctor, called an interventional radiologist, performs the procedure with the help of the interventional radiology team.
How should I prepare my child?
When you schedule your child's procedure, you will be given written instructions. These instructions will tell you when your child must stop eating, drinking, and taking medicine.

Your child will receive general anesthesia to help him or her stay still during the procedure. General anesthesia is medicine that causes deep sleep. A doctor called an anesthesiologist will meet with you to discuss this and obtain consent. Older children and adults can have this procedure without general anesthesia.

Explain in simple terms why the procedure is needed and what will happen. Some things you may want to say:
     You will be close by during the procedure
     Your child may bring a favorite toy or blanket into the room

What happens before the procedure?
A staff person from Radiology, Day Surgery or Preoperative Clinic will call you a few days before the procedure to tell you where to go when you come to the hospital.

When you arrive, the radiologist will talk with you about the procedure and ask you to sign a consent form.

Your child will change into a hospital gown.

A nurse will start an intravenous (IV). He or she will apply some numbing cream first before starting the IV.

You and your child will be brought into the room where the procedure is done.

Then the nurse will give some medicine through the IV to help your child relax. You may stay until your child falls asleep.

If your child is very young, he/she may go to sleep with medicine and a mask.

What happens during the procedure?
The radiology technologist cleans the skin with a special liquid that helps prevent infection.

Next the doctor inserts a catheter through a tiny opening in the skin. The laser is then threaded through the catheter and into the blood vessel to be treated.

When the procedure is done, the laser and the catheter are removed. The nurse applies a dressing to the tiny opening in the skin. If the vascular malformation involves an arm or leg, a tight wrap or stocking is put on.

In many cases, the vascular malformation is also treated, during the same procedure, by injection of a sclerosing medication into the smaller blood vessels (sclerotherapy).

What happens after the procedure?
When your child starts to wake up, a nurse takes him or her to the Post Anesthesia Care Unit (PACU). He or she is watched closely for 2 to 6 hours. You may stay with your child.

Your child will receive fluids and pain medicine through the IV.

The interventional radiologist will speak to you about the results.

How long will recovery take?
The healing process usually takes several weeks to months. There may be swelling at first.

Your child may feel some pain or "tightness" as the area heals. Pain medication may be prescribed. The level of activity your child can have after the procedure will be outlined before your child is discharged.

Where can I call for more information?
Call the Interventional Radiology Office at (617) 355-6579 if you have any questions or concerns. You may ask to speak with a doctor, nurse practitioner, or nurse.
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which can only be given to you by your personal health care professional.
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