Embolisation is technically successful in 84-99% of patients. Some patients may develop arterial spasm, making bilateral embolisation impossible at that time. The embolisation can be completed at another time in most cases. ,,,,,,,, 
90% of patients have relief from menorrhagia, dysmenorrhea and bulk-related symptoms. 90% of those suffering from menorrhagia had normal periods within a month, while others resolved over the next 12 months with 99% returning to normal. 2.6% had temporary amenorrhoea. ,, 1-7% can develop permanent amenorrhoea. ,
After 6 months there is an average reduction of 60% in fibroid volume and this may be a further reduced it was thought for up to 12 months, but studies have shown the fibroids continue to reduce until there is nothing left..
Click on the image for a larger view of MRI scans showing fibroids pre and post embolisation procedure
Smaller leiomyomata under 5cm may disappear altogether and the uterine size also reduces significantly.
Women have a very high satisfaction rate for the technique with a high percentage 85-97% willing to have the procedure again and many recommending it to friends and colleagues. Many have an overall improvement in their health. There is an overall success rate of approximately 89-97%. ,,,,,
Complications are very rare after UAE. In the short-term there can be infection 1%, which is responsive to antibiotics, pyrexia from post-embolisation syndrome 4-7%, which must be differentiated from infection, prolonged vaginal discharge and expulsion of necrotic fibroids 2.8- 7%, which may require surgical assistance. The menstrual cycle can be disrupted in some patients, but returns to normal in 99% of patients within 12 months. ,,,, 
There have been 5 deaths to date worldwide in over100,000 cases. Two were from pulmonary embolism, one of these was in a woman in her 60s who was not mobilised for some days, one from sepsis and one from migration of the embolisation material. The type of embolisation material used in this case in the Netherlands is not normally used in the UK. ,,,,
This compares well with the mortality rate for hysterectomy of 1 in 1,500-3,300. ,  Much higher mortality rates have been reported - 1-2 in 1,000 (Martin & Benson 1987). This rate would give rise to 9-60 deaths per annum in the UK.
Embolisation can be performed as a first line therapy and also after myomectomy. Fertility will be maintained and there have been at least 60 successful pregnancies from one centre in the UK reported to date. The total number is unknown. ,,,,,, 
Embolisation has a much better safety profile than surgery for the treatment of fibroids, a shorter recovery time and no known long-term side effects. Mortality and morbidity in the short, medium and long terms are greatly reduced.
It is less expensive to perform than surgery.
Potentially it should be viewed as a first-line therapy for the treatment of fibroids with potential benefits to patients and the NHS alike.