Hormone replacement therapy regimens in chemotherapy-induced premature ovarian failure and the subsequent correction of hormone levels.

OBJECTIVES Premature ovarian failure (POF) is a consequence of gonadotoxic chemoradiotherapy given in antyneoplasia treatment. In young women it will correlate with menopausal symptoms which tend to appear due to depleted ovarian follicle reserve. DESIGN It was a case series study that included women 18-50 years old who were treated for malignancy with gonadotoxic chemioradiotherapy. We have measured blood hormonal levels of follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and progesterone within one month of various hormone replacement therapy (HRT). RESULTS We have observed different kind of hormonal reaction according to FSH, LH, estradiol and progesterone levels due to various hormonal replacement therapy. The administration of various HRT regimens presented with a decrease in the blood concentration of estradiol E2 and progesterone and a concomitant increase of FSH and LH. These findings demonstrate a shift to physiological ranges and a simultaneous improvement of symptoms associated with CI-POF. CONCLUSIONS The most appropriate therapy needs to be selected according to the patient's alleviation of symptoms and correction of blood hormone levels.