Sex hormones responsive conditions Flashcards
what are the two types of oestrogens?
Natural
Synthetic
examples of natural oestrogens
estradiol, estrone, estriol
examples of synthetic oestrogens
ethinylestradiol + menstranol
examples of progestrones used in tx of HRT
norethisterone, levonorgestrel, desogestrel
examples of tibolone used in tx of HRT
oestrogenic
progestogenic
weakly adrongenic
why is oestrogen given as tx in HRT?
-It helps to alleviate menopausal symptoms
-can also reduce postmenopausal osteoporosis
when is progestrone given with oestrogen
if pt has uterus
topical + systemic
what are the menopausal symptoms?
-vaginal atropy (topical)
-vasomotor instability (systemic)
pro and con of clonidine
-pro= can be used for vasomotor symptoms
-con = large s/e profile
when should HRT be used
only when benefit outweighs risk especially in under 60
what are the risks of HRT
-Breast cancer
-endometrial cancer
-ovarian cancer
-venous thromboembolism
-stroke
-coronary heart disease
how long is breast cancer a risk in HRT
-increased risk after 1 yr
-longer use = higher risk
-risk higher in combined HRT than oestrogen alone
-excess risk persists for 10+yr
when is is endometrial cancer a risk in HRT
-women with uterus lower risk with combined than oestogren alone
-tibolone also increases risk
how long is ovarian cancer a risk in HRT
small increase which disappers a few years after stopping