Hormonersatztherapie nach Mamma- und Ovarialkarzinom

Breast cancer patients undergoing chemotherapy or anti-endocrine treatment suffer from a subsequent lack of estrogen. While these women would benefit substantially by estrogen replacement, the pertinent data are sparse and inconsistent. Observational studies have not shown an increased risk of recurrence under hormone replacement therapy (HRT); however, the studies are heterogeneous, retrospective and mostly underpowered. The few randomized prospective studies suggest an increased recurrence rate with HRT regimens. Since ovarian cancer is a hormone-related malignancy as well, HRT in perimenopausal and postmenopausal women may have an impact on ovarian cancer risk, especially after primary treatment, but data are scanty. Epidemiological studies have shown that long-term HRT might even increase the risk of ovarian cancer The data on HRT after ovarian cancer treatment are even scantier ; thus, there are no reliable recommendations. This paper reviews the current literature concerning the feasibility of HRT in order to develop new recommendations.