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Bulk Management Options
No therapy necessary if asymptomatic Also may treat bleeding If the major issue is size and pressure symptoms
Depends on patients fertility wishes GNRH agonist + addback HIFU SPRM If close to menopause try and temporize as most fibroids
shrink with estrogen deficiency
Surgical
Gonadotropin-releasing hormone analogues
GNRH agonists compete for GNRH receptor and first flare,
then inhibit the HPO axis reducing estrogen level
Pre-operative treatment for both hysterectomy and
myomectomy reduces uterine and fibroid volume, anemia ,reduces intra-operative blood loss, enables minimalistic surgery, reduces complications
Temporary reduction and fibroids regrow when therapy
stopped
Side effects hot flushes, vaginal dryness, low mood and loss
Add-back (with HT, MPA or tibolone or TSEC) can allow
longer use
Lethaby Cochrane Database Syst Rev 2017 Perez-Lopez Maturitas 2014 De Milliano PLoS One 2017
SPERM’s
Progesterone receptor modulator-mifepristone ,ulipristal acetate,
asoprisnil and telapristone acetate-affects fibroids, endometrium and pituitary
Used in 3mo cycles with 2 mos off Decreases symptoms and bulk After 4 courses with 5 mg 70% amenorrheic by 4 mo and 65%
shrinkage
8 cycles of 10 mg showed safety-9% had progesterone associated
endometrial changes (PAEC)-(reversible)
Approved in Canada and Europe Recent European warning of rare acute liver failure
Donnez Fertil Steril 2016 Fauser PloS One 2017 Ali Biol Reprod 2017
Aromatase Inhibitors ,Androgenic steroids, GNRH antagonists SERMS
Letrozole or anastrozole block conversion of androgens to
- estrogens in ovarian and peripheral tissue
Shown to reduce volume, OR time and bleeding during
hysteroscopic and laparoscopic myomectomies
Current evidence insufficient to recommend-hypoestrogenic side
effects, need contraception-temporary effects
GNRH antagonists-competitive inhibition of GnRH-sc-alagolix and
SERMS- 2/3 studies showed benefit of raloxifene Danazol older treatment-relieves heavy bleeding- limited by side
effects-no RCT’s
Song Cochrane Database 2013 Deng Cochrane 2012 Talaulikar Best Pract Res Clin Obstet Gynaecol 2018