Define menopause
The state when a woman has not menstruated for a year, without the influence of any hormonal contraception
What is the average age of menopause in the UK?
51yrs
Define premature menopause
Menopause before age 40yrs
What are the potential causes of premature menopause?
Primary premature ovarian insufficiency
FHx
Chromosomal abnormality such as Turners syndrome
Autoimmune disease
Iatrogenic -> bilateral oophrectomy
How does the frequency of periods change in the build up to menopause?
At birth women have a finite number of occytes in utero.
At menarche -> 4000 primordial follicles
Number goes down with age -> more FSH required to stimulate oocyte maturation -> results in irregular and infrequent menstrual cycle.
At menopause no more primordial follicles -> no more ovulation
What are the two different forms of oestrogen in the body?
How are they different?
Oestradiol -> produced by dominant ovarian follicle during menstrual cycle, cause endometrial proliferation
Oestrone -> produced by the adipose tissue, less potent than oestradiol.
What are the key clinical features of menopause?
How should menopause be diagnosed?
Clinical diagnosis based on symptoms and menstrual cycle
May aid by bloods: Anti-mullerian hormone (dec with age), oestradiol, follicle count + ovarian vol
What investigations should be done for premature menopause?
Check FSH on two occasions 4-6w apart -> elevated indicated ovarian insufficiency
Can not be done if on hormone contraceptives/HRT
Always done in under 40yrs, considered in under 45yrs.
What differential diagnosis should be considered for menopause?
HYpothyroidism
Anaemia
Depression
Fibromyalgia
What are the different combination of treatment available for HRT?
What factors play a role in deciding what HRT method is most appropriate for a woman?
Uterus -> needs combined (reduce endometrial cancer risk)
No uterus -> oesotrgen only (P has breast cancer risk)
Last menstrual period -> frequent may want break through bleed
Risks/contraindications
Preference
Draw a decision guide for the different types of HRT available?
What are some potential side effects of HRT?
Headache
Nausea
GI symptoms -> bloating
Breast tenderness
Fluid retention/weight gain
Irregular vaginal bleeding (initially)
What health conditions does HRT increase the risk of?
Breast cancer -> combined, in oral + transdermal, increase with duration.
Endometrial cancer -> due to P
Ovarian cancer -> both, reduce when stop
VTE
Stroke
Coronary heart disease
What should be considered regarding VTE risk when starting HRT?
Higher risk with oral preparations
Transdermal risk same as baseline population
Transdermal and review if RF e.g FHx or PH, obesity, immobility
If significant family history of VTE or thrombophilia refer to haematologist
What are the main contraindications for HRT?
Active breast/endometrial cancer
Active VTE
Active cardiovascular disease
Undiagnosed vaginal bleeding
Uncontrolled HTN
Active liver disease with abnormal LFTs
Pregnancy.
How should transdermal HRT be applied?
Patches -> clean, dry, non-hair bearing skin below waist
Gel -> upper, outer arm and shoulder or inner thigh
Spray -> dry skin, light mist
What additional/alternative medication might be offered to women on HRT?
Contraceptives -> can get pregnant on HRT
Tibolone -> testosterone supplement to help inc libido
Lubricant for vaginal atrophy
Topical moisturisers for dry skin
Clonidine -> vasodilator -> for vasomotor symptoms -> contraindicated in severe bradyC or 2/3rd heart block
What lifestyle changes might be recommended in menopause?
Healthy BMI
No smoking
Alcohol <2 units a day
Healthy diet
150 mins exercise per week
Sleep Hygiene
Adequate supplements
CBT if needed
What is the link between HRT and osteoporosis?
HRT should not be given post-meno solely to treat osteoporosis
In isolation bisphosponates are more effective
Does have some benefit -> consider in premature menopause when HRT needed regardless
What alternative medication can be used to treat osteoporosis in post-menopausal women?
Raloxifene -> selective oestrogen receptor modulator
What follow up is required for a woman starting on HRT?
3 months appointment
Some erratic bleeding common
Max benefit reached in 3m
Check effectiveness/bleeding pattern/ SE/compliance/BP/BMI
If bleeding persists after 3m -> refer for investigation of post-meno bleeding
What is important to consider for a woman on HRT for surgery?
Stop 4-6weeks prior to planned surgery to reduce VTE risk
Advise compression stokcing + proph LMWH