Uterine Artery Embolization

Post-embolization syndrome (pain, fever, nausea and vomiting) in 100%
it is of variable severity 
typically lasts up to 1 week

Some women “pass” their fibroids several months after the procedure (~10%)
while this may occur spontaneously, you may require a minor procedure (D & C)

Effects on future pregnancies are unknown
many women have completed pregnancies (including twins) after having this procedure

Non-target embolization
particles go to the wrong place 
very unusual
symptoms are usually short term

There are only 2 reports in the literature of deaths following 
embolization (6000 have been performed worldwide)
1 from infection
1 from pulmonary embolus (blood clot in the lung)

There are no reports of allergic or adverse reactions to embolization materials (PVA, Gelfoam or metal coils) in over 20 years of extensive worldwide use

There has not been shown to be an increase in pelvic tumours or congenital birth defects as a result of radiation exposure