hormone replacement therapy Flashcards
(30 cards)
when does progesterone need to be given with oestrogen
women that have a uterus
why is progesterone given to women with a uterus
prevent endometrial hyperplasia and endometrial cancer secondary to unopposed oestrogen
clonidine
agonist of alpha-2 andrenergic receptora and imidazoline receptors
helpful for vasomotor sympotms when there are contraindications to HRT
indications for HRT
- replacing hormones in premature ovarian insufficiency even w/o symptoms
- reducing vasomotor symptoms
- improving low mood,, dec libido, sleep, joint pain
- reducing risk osteoporosis in women<60
HRT in women <60
benefits generally outweigh the risk
key benefits
improved vasomotor and other symptoms
improved QoL
reduce risk osteoporosis and fractures
risks of HRT
breast cancer
endometrial cancer
VTE
stroke, CAD
ways to reduce risk VTE
using patch rather than tablets
contraindications to HRT
- undiagnosed abnormal bleeding
- endometrial hyperplasia/Ca
- breast cancer
- uncontrolled htn
- VTE
- liver disease
- active angina or MI
- pregnancy
assessment before HRT
- full Hx to ensure no contraindications
- FHx to assess risk oestrogen dependent cancers and VTE
- check BMI and BP
- ensure breast and cervical screening up to date
- lifestyle changes
3 steps to consider when choosing formualtion
- local or systemic symptoms?
- uterus present?
- period in past 12mo?
choosing formulation: do they have local or systemic symptoms
local = topical treatment e.g. oestrogen cream
systemic = systemic treatment , go to step 2
choosing formulation: do they have a uterus
no = use continuous oestrogen only HRT
yes = add progesterone (combined HRT), go to step 3
choosing formulation: have they had a period in the last 12mo
perimenopausal = cyclical combined HRT
postmenopausal = continuous combined HRT
options for oestrogen delivery
oral - tablets
transdermal - patches, gels
patches more suitable if higher risk VTE, CVD, headaches
cyclical progesterone
give for 10-14days per month
allows patients to have monthly breakthrough bleed during oestrogen only part of cycle
continuous progesterone
used if women has not had period in the past
- 24mo if < 50yrs
- 12mo if >50yrs
use of continuous combined HRT before postmenopause
can lead to irregular breakthrough bleeding
switching from cyclical to continuous HRT
after 12mo of Rx in women >50 yrs
after 24mo of Rx in women < 50yrs
options for progesterone delivery
oral - tablets
transdermal patches
mirena coil
Progestogens
target and stimulate progesterone receptors
progestins
synthetic progestogens
best way of delivering oestrogen
patches due to decreased risk VTE
tibolone
synthetic steroid that stimulates oestrogen and progesterone receptors
used as form of continuous combined HRT