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During
arterial embolization, a catheter is threaded up the femoral artery
to the uterine artery, which supplies 90% of the blood to the uterus.
Substances are then injected into the uterine artery that inhibit
blood flow to the artery; the result is shrinkage of uterine fibroids.
UAE
is performed by an interventional radiologist (click here to view
physicians profile) under fluoroscopic guidance. This procedure
is performed under local anesthesia, lidocaine is given to numb
the groin area. The radiologist inserts a small needle into the
artery in your groin and then places a thin plastic catheter into
the main arteries supplying the uterus. Microscopic particles called
Polyvinyl Alcohol (PVA) are injected through the catheter to occlude
the blood vessels supplying the fibroid. During this process, the
radiologist injects contrast dye to help show the vessels with x
- rays. When the procedure is completed, the radiologis will remove
the catheter and apply pressure to the pincture site in the groin
area.
The
radiology nurse monitors the patient in the holding area until a
bed is available. In the majority of patients, there will be some
pelvic pain and cramping during the first 6- 10 hours following
the procedure. The is caused by the fibroids suddenly losing blood
supply. Warm packs and intravenous medications are given as needed
for pain. Patients are required to lie flat for 5 - 6 hours afterwards
so that the artery where the puncture was made can seal. Some patients
may be able to go home six to eight hours after the procedure is
completed. However, symptoms such as severe pain or fever may necessitate
a slightly longer stay. Should severe pain result, an anesthesiologist
will be consulted and will provide pain management.
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