Cornual fibroids: a conservative approach to restoring tubal patency using a gonadotropin-releasing hormone agonist (goserelin) with successful pregnancy

[Fertility after hysteroscopic resection of submucosal myoma in infertile women]

OBJECTIVES

Myoma is the most frequent benign uterine tumor and might have a negative impact on fertility. In 5 to 10% of cases, infertility is associated with myoma and in 1 to 3% myoma is the only infertility factor. Even if effect of myomectomy on fertility is controversial, benefit of hysteroscopic myomectomy for submucosal myoma on fertility has already been shown. The aim of this study is to evaluate fertility of infertile women less than 46years old after hysteroscopic resection of submucosal myoma.

MATERIAL AND METHODS

This retrospective unicentric study took place in the gynecologic unit of a teaching hospital. All infertile women with a hysteroscopic myomectomy for submucosal myoma between March 2009 and May 2013 were included. A phone questionnaire was conducted to evaluate pregnancy rate, eventual medical assistance, time between submucisal resection and pregnancy and issue of pregnancies.

RESULTS

Seventy-one infertile women with a hysteroscopic resection of submucosal myoma were included. Pregnancy rate was 33.8% with 50% of live births, 41.6% of miscarriages and 8.4% of late fetal losses with a mean follow-up of 28.7months. Mean time between hysteroscopic resection and pregnancy was 9.9months. A medical assistance was necessary for 6 women (25% of pregnancy).

CONCLUSION

This study reports hysteroscopic resection of submucosal myoma for infertile women. The rate of pregnancy after treatment is 33.8%.

Dealing with uterine fibroids in reproductive medicine

Women who wish to conceive are nowadays more likely to present with uterine fibroids, mainly because of the delay in childbearing in our society. The relationship between uterine fibroids and human reproduction is still controversial and counselling patients might sometimes be challenging. This paper is to assist those involved in the management of patients of reproductive age presenting with uterine fibroids. The interference of fibroids on fertility largely depends on their location. Submucous fibroids interfere with fertility and should be removed in infertile patients, regardless of the size or the presence of symptoms. Intramural fibroids distorting the cavity reduce the chances of conception, while investigations on intramural fibroids not distorting the cavity have so far given controversial results. No evidence supports the systematic removal of subserosal fibroids in asymptomatic, infertile patients. Myomectomy is still the 'gold standard' in fibroid treatment for fertility-wishing patients. In experienced hands, hysteroscopic myomectomy is minimally invasive, safe, and effective. Abdominal and laparoscopic myomectomy might be challenging, but potential risks could be reduced by new strategies and techniques.

GnRH analogues in the treatment of fibroids

Uterine fibroids are estimated to affect up to 25% of women of reproductive age and are a common cause of morbidity, being associated with menstrual dysfunction, iron deficiency anaemia, pregnancy wastage and subfertility. Their pathogenesis remains unknown but their association with ovarian function and oestrogen production is undisputed and supported by their occurrence only after puberty and the shrinkage observed after the menopause. This oestrogen dependency has recently been exploited therapeutically through investigation of the use of agents that induce a hypo-oestrogenic state, the gonadotrophin-releasing hormone (GnRH) or luteinizing hormone-releasing hormone (LHRH) analogues.

Gonadotrophin hormone-releasing hormone analogue treatment of fibroids

Gonadotrophin hormone-releasing hormone analogue (GnRHa) therapy can induce a reduction in fibroid volume by up to 50% over a period of 3 months treatment. This effect may be beneficial in selected patients, prior to open or endoscopic myomectomy, to aid the surgical procedure by improving vision because of reduced blood loss and reduced uterine artery blood flow. Symptoms of excessive menstrual bleeding, pelvic pain and dysmenorrhoea will also be controlled. Long-term administration of GnRHa requires the use of concomitant add-back therapy, the optimal combination investigated to date being an oestrogen-progestogen continuous combined preparation.

Clinical presentation of uterine fibroids

It is often accepted that fibroids cause a variety of female reproductive problems, such as menorrhagia, pain, infertility, pregnancy loss and pregnancy complications. Understandably, therefore, many 'successful' medical or surgical interventions have been proposed. However, while fibroids are certainly commonly associated with these conditions, it remains unclear whether this is coincidental, because of the high prevalence of fibroids, or causal. In particular, this chapter explores the roles of fibroids in menorrhagia, discussing possible pathophysiological mechanisms and the utility of medical and surgical management. Similarly, the relationship between fibroids and infertility is examined, concluding that fibroids are not causative in the vast majority of cases and thereby questioning the effectiveness of myomectomy as a treatment for infertility. The use of hormone replacement therapy in post-menopausal women with existing fibroids is also discussed, concluding that this is generally safe and appropriate. In pregnancy, it is a commonly held tenet that uterine fibroids enlarge and that they are associated with various adverse outcomes such as miscarriage, placental abruption, fetal growth retardation and Caesarean section. This chapter evaluates the available evidence for this and concludes that, as with infertility, the role of fibroids has been exaggerated. Nonetheless, pregnancy management options are discussed.