First global study indicates comparable fertility rates for minimally invasive UFE and 'gold standard' surgical myomectomy for women who want to have children after uterine fibroid treatment
Uterine fibroid embolization, a minimally invasive interventional radiology procedure that blocks blood supply to treat painful uterine fibroids, has a comparable fertility rate to myomectomy, the surgical removal of uterine fibroids, for women who want to conceive, according to the first study on the subject released at the Society of Interventional Radiology's 35th Annual Scientific Meeting in Tampa, Fla.
"This study is significant because it shows comparable fertility rates between the two primary uterus-sparing treatments widely available to treat fibroids: uterine fibroid embolization (UFE) and surgical myomectomy, which is considered the gold standard for symptomatic fibroids in women who wish to conceive," said Jo-o Martins Pisco, M.D., an interventional radiologist at St. Louis Hospital in Lisbon, Portugal. "These results are surprising because other studies have favored surgical myomectomy over UFE for women who want to conceive. In this study of 743 women, UFE had a fertility rate of 58.1 percent, which is comparable to surgical fibroid removal (myomectomy), which has a fertility rate of 57 percent," noted Pisco. "Our study proves that UFE not only allows women who were unable to conceive to become pregnant but also allows them to have normal pregnancies with similar complication rates as the general population in spite of being a high risk group," he added. "In the future, UFE will probably be a first-line treatment option even for women who wish to conceive and are unable due to the presence uterine fibroids," he noted.
Uterine fibroids are benign tumors in the uterus that can cause prolonged, heavy menstrual bleeding that can be severe enough to cause anemia or require transfusion, disabling pelvic pain and pressure, urinary frequency, pain during intercourse, miscarriage, interference with fertility and an abnormally large uterus resembling pregnancy. Twenty to 40 percent of American women 35 and older have uterine fibroids, and nearly 50 percent of premenopausal African American women have fibroids of a significant size.
An increasing number of women are delaying pregnancy until their late thirties, which is also the most likely time for fibroids to develop, said Pisco. There is conflicting evidence in the medical literature regarding the impact of fibroids on pregnancy; however, the risk and type of complication appear to be related to the size, number and location. Women may not know they have fibroids (asymptomatic) and undergo in vitro fertilization treatments-rather than getting treatment for fibroids. "We want women to know that uterine fibroids may be a cause of infertility, that their treatment is mandatory and that UFE may be the only effective treatment for some women," said Pisco.
The conventional treatment of uterine fibroids in patients who wish to become pregnant is myomectomy, which is surgical fibroid removal. This treatment is usually effective, particularly if the fibroids are in small number and of small or medium size. UFE, which has a lower complication rate than myomectomy, may be performed if a woman has many fibroids or large-sized fibroids and a gynecologist cannot rule out a hysterectomy (uterus removal) during myomectomy or if myomectomy is unsuccessful.
In the Portuguese study, most women opted for UFE as a fertility treatment after failure of myomectomy or in vitro fertilization or because hysterectomy was the only suggested option. Of the 743 patients who received UFE treatment, 74 wanted to conceive and had been unable. Of these 74 women, 43 or 58.1 percent (average age, 36.2) became pregnant; the time between UFE and conception ranged from 2 to 22 months. At this time, there have been 36 completed pregnancies, resulting in 30 births (83.3 percent); seven women are still pregnant.