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Reviews
Menopause, hormone replacement and gynaecological cancers
Lynsey Hinds and John Price
Belfast City Hospital, Northern Ireland
Correspondence: Dr Lynsey Hinds, 1 Strawhill Manor, Donaghcloney, Belfast BT66 7GH Northern Ireland. Email:
hindslynsey@hotmail.co.uk
Approximately 18,000 women are diagnosed with a gynaecological
cancer in the UK each year. Predisposing risk factors for some
of these gynaecological cancers include an early menarche/late
menopause and hormone replacement therapy (HRT). Furthermore,
treatment of gynaecological malignancies often induces an iatrogenic
menopause, which may be more severe than a natural onset. HRT
is an extremely effective treatment that may dramatically improve
physical and psychological symptoms and ultimately quality of
life in patients with cancer. However, the safety of using HRT
in patients with gynaecological cancer is a controversial issue
and not entirely clear. The main concern is the theoretical
risk of the stimulation of residual cancer cells by estrogen
replacement. The review of the evidence in this article found
that for most gynaecological cancers this hypothesis was not
proven. No study to date has found HRT to have a detrimental
effect on survival in patients with early stage endometrial
cancer, epithelial ovarian cancer, cervical cancer and vulval
tumours.
HRT is only an absolute contraindication in low-grade endometrial stromal sarcomas and is best avoided in granulosa cell ovarian tumours. Therefore, HRT should not be withheld
in the majority of patients with gynaecological cancer. If quality
of life is being adversely affected by symptoms of the menopause,
then patients with cancer should be counselled regarding the
known risks and benefits of HRT to enable them to make an informed
decision on their treatment.