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Published byImogen Austin Modified over 9 years ago
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Dr. Helen Roberts MB, MPH, FAChSHM Research Manager Family Planning
Women at menopause Dr. Helen Roberts MB, MPH, FAChSHM Research Manager Family Planning Senior Lecturer Women’s Health Department Obstetrics and Gynaecology University of Auckland New Zealand
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It has no role in the primary or secondary prevention of
HRT remains an appropriate treatment only for women with moderate to severe vasomotor symptoms of menopause. It has no role in the primary or secondary prevention of cardiovascular or cerebrovascular disease
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Indications for HT use Indications for HT are hot flushes, night sweats and genito- urinary symptoms Longitudinal study evidence does not suggest that mood changes or cognitive disturbance related to the menopausal transition
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Which women should not use HT?
Previous breast cancer Previous deep vein thrombosis (DVT) Previous pulmonary embolus Previous heart attack Previous stroke High risk of cardiovascular disease
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How many women have these symptoms and how long do they last?
Flushes 30% of women while still having periods-don’t do hormone levels to decide who to treat Majority of women they are self limiting and stop within a few years 80% women they last 5 years-10% even longer
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How many women have these symptoms and how long do they last?
Genito–urinary symptoms 50% of women Symptoms are vaginal dryness, dyspareunia, recurrent urinary tract infections Symptoms are long term
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Decision about stopping hormone therapy
Mrs Grant is a 54 year old woman was referred by her general practitioner to discuss her ongoing use of oral hormone therapy She started this when she was 46 years old because of night sweats. At this time she was still menstruating and has continued to have regular periods while taking hormone therapy Her general practitioner has advised her that she can now probably stop using hormones as her flushes are likely to have gone, but she is keen to continue treatment. She asked to be referred for a second opinion. Roberts H. BMJ 2010; 341:c2421
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Types and doses of hormones
What regimen of HT is this woman using? ……….sequential If she had wanted a subsidised Rx what would you give her? “guidelines are for lowest dose possible for symptom relief” –so what would you Rx?
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How can we give these hormones?
Estrogen Oral- only one fully subsided Patch/gel Spray Implant Vaginal cream Progestogen Oral IUS-Mirena
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What HT do we usually start with?
Oral—only delivery Rx fully subsidised E only if hysterectomy E+P if uterus E is given continuously every day P days/month if menopause<1 yr ago-sequential P continuous if menopause>1yr ago
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Types and doses of hormones
Estrogen -different from E in contraception CEE (conjugated equine estrogens)-mares 17 β estradiol. Estradiol valerate…..fully funded Progestogen- often same as P in contraception Medroxyprogesterone acetate…fully funded Levonorgestrel Norethisterone Utrogestan-what is this?
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Sequential progestogen for 14 days if < 1 yr postmenopausal
Continuous oestrogen Sequential progestogen for 14 days if < 1 yr postmenopausal Continuous progestogen if > 1 yr postmenopausal 0.3 mg CEE (premarin) mg 17 β estradiol (estrofem) 0.5-1 mg estradiol valerate(progynova) 5 mg MPA (provera) 0.7 mg NET =2 Noriday 0.06mg LNG =2 Microlut 2.5 mg MPA Kliovance 0.03 mg LNG =1 Microlut Furness S, Roberts H, Lethaby A, Farquhar C Cochrane Database of Syst Rev 2009 CD000402
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What low dose products are available?
Kliovance-1 mg E mg NETA (NZ) Angelique- 1mg E2 + 2mg drospirinone Novofem- 1mg E2 + 12days 1mg NETA Eviana mg E mg NETA
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How well do hormones help symptoms?
Placebo response for flushes up to 50% HT – 75% improvement (2-3 less per day) - takes a few weeks to help Cochrane Review MacLennan 2002 Progestogens alone-Depo Provera or oral MPA 10-20mg daily-almost similar response to estrogen Other treatments SSRI/SNRI flushes less/day than placebo Clonidine less Gabapentin-2.05 less
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Genito –urinary symptoms
Not self limiting-may need long term treatment Vaginal estrogen better than oral A level evidence for vaginal atrophy B level evidence for recurrent UTIs May help urgency in women with overactive bladder May make stress incontinence worse
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Vaginal estrogens Ovestin cream/pessary-estriol 0.5 mg
Funded- so cost $15 for 3/12 Vagifem-estradiol 25 mcg vaginal tabs Not funded- cost $75 for 30 tabs but Mercy pharmacy $ courier ( ) Each night PV for first 2 weeks the twice weekly Takes 4-6 weeks to work Estring: vaginal ring:90 days-Pfizer under Section 29. Cost $75 + pharmacy charge ( )
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Long term Rx with vaginal E
Systemic absorption smallest with estriol Vagifem:E2 levels in normal postmenopausal range NAMS position statement Progestogen not generally indicated Insufficient data to recommend annual endometrial surveillance in asymptomatic women Continue Rx for women as long as symptoms remain NAMS Menopause 2007;3:357-69 Notelovitz Obstet Gynecol 2002;99:556-62
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Her GP had talked to Mrs Grant about the results from WHI
What would have been discussed?
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Women’s Health Initiative Study Randomised placebo controlled study Postmenopausal women 50-79 yrs
HRT v placebo With uterus 0.625 mg Premarin +2.5mg Provera 16,608 women Stopped at 5.2 years ERT v placebo No uterus 0.625mg Premarin 10,739 women Stopped at 7 years
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How are results of the WHI presented?
Presented as Hazard Ratio (HR) If HR is 1.0- then no change in risk If HR is more than 1.0 eg 1.4 then that is an increased risk HR of 1.4 means 40% increase in risk If HR is 2-then double the risk If HR is less than 1.0 eg 0.6 then that is a decreased risk HR of 0.6 is 40% decrease in risk
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Hazard ratio (HR) results for WHI *
Outcome HR for E+P HR for E only Stroke 1.41( ) 1.39( ) Breast cancer 1.24( ) 0.77( ) DVT 1.95( ) 1.47( ) Coronary heart 1.24( ) 0.95 ( ) Dementia(>65) 2.05( ) 1.49( ) Gall bladder 1.59( ) 1.67( ) Hip fracture 0.66( ) 0.61( ) Total fracture 0.76( ) 0.70( ) Colorectal ca 0.63( ) 1.08( ) * No increase in mortality with these publications
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Hazard ratio (HR) results for WHI
Outcome HR for E+P HR for E only Stroke 41% increase 39% increase Breast cancer 24% increase 0.77( ) DVT 95% increase 47% increase Coronary heart 1.24( ) Dementia(>65) Double the risk 1.49( ) Gall bladder 59% increase 67% increase Hip fracture 34% decrease 39% decrease Total fracture 24% decrease 30% decrease Colorectal ca 37% decrease 1.08( )
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WHI-Absolute risks 10,000 women/yr aged 50-79
E+P v placebo E only v placebo Breast cancer +8 Heart disease PE +7 Stroke +12 Hip fracture -5 -6 Colorectal ca JAMA 2004;291: JAMA 2002;288:
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New HT pamphlet for women
Google “Family Planning” Resources View our free resources Scroll down to women Hormone therapy
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E+P and breast cancer Increased incidence of breast cancer HR=1.25( ) Diagnosed at more advanced stage Increased abnormal mammograms Higher risk if previously on HT before study Higher risk if started HT within 5 years of menopause Chlebowski. JAMA 2003;289:
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E+P -Breast cancer: the issue of the time frame
!
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Time frame for increase in breast cancer
Effects of HT on mammograms and breast Ca stage suggested that E+P hinders breast cancer diagnosis, thus making the assessment of HT safety of short term use problematic Use for a short period may appear safe, when in fact breast cancers are being stimulated and masked from diagnosis during therapy.” Geller and Chlebowski Sexuality , Reproduction and Menopause 2003;1:5-9
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How can I individualise the CVD risk for Mrs Grant?
Predict computer programme Coloured pictures by Rod Jackson in MIMS
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How can I individualise the CVD risk for Mrs Grant?
Trial evidence can be translated to individual decisions by transforming RR into absolute risks. HT increase risk of stroke by 40%-RR 1.4 Mrs Grant with 5% baseline risk has 5X1.4=7% risk if uses HT...2% increase If she has 25% baseline risk has (25x1.4) 35% risk if uses HT………….10% increase Col N American Journal Medicine 2005;118:155S-162S
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Risk after stopping HT If she stopped the HT now when would her risk of cardiovascular disease and breast cancer return to normal?
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Stopping combined HT -follow up WHI
Most women stopped Rx pills when instructed 2002 and 1 year later only 4% using HT not related to study Breast risk with combined HT-declined “likely due to the regression of preclinical cancers following withdrawal of hormones Cardiovascular risks –stroke ,VTE had disappeared at 2.4 years of follow up Hip fracture benefit-also disappeared at 2.4 years NEJM 2009;360:573-87
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Increase in Mortality : WHI Post intervention follow up
WHI halted 2002 and women asked to stop study Rx After 2.4 years of post intervention follow up-now increase in mortality HR 1.87 ( ) deaths from non-small-cell- lung cancer (unrelated to smoking) Thought to be due to stimulation of growth on already established cancers No increase with E alone Lancet 2009;374:
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Increase in Mortality : WHI Post intervention follow up
Although breast cancer incidence declined after women stopped HT After total mean follow up of 11 years Still increased incidence if assigned combined HT v placebo HR 1.25 ( ) and cancers more likely to be node positive Also now increase in breast cancer deaths if assigned combined HT v placebo HR 1.96 ( ) Lancet 2009;374:
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Would Mrs Grant have had a different risk if on E alone?
5 years of E only use: HR= 0.80( ) Fewer breast cancers with localised disease but not fewer more advanced cancers The decreased effect was concentrated in women who had not used E prior to study entry Stefanick ML et al JAMA 2006;
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Would Mrs Grant have had a different risk if on E alone?
1/11 women had short interval avoidable mammogram 1/50 women had breast biopsies-false positive Unlike E+P no delay in breast cancer diagnosis Smaller increase in breast density at 2 years 3% with E compared to 7% with E+P Chlebowski RT J Clin Oncol 2010;28:2690-7
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Stopping E only-follow up WHI
10.7 years since baseline E use median 5.9 yrs but median adherent time for 80% women was 3.5 years No overall increased or decreased risk of CHD, deep vein thrombosis, stroke, hip fracture, colorectal cancer, or total mortality. A decreased risk of breast cancer persisted JAMA. 2011;305(13):
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Breast cancer risk after stopping E only
HR CI During intervention 0.70 Post intervention 0.75 Overall 0.77 Editorial comment: The lack of an adverse effect of unopposed estrogen when used for a short period in the WHI does not counter the larger body of evidence of an elevated risk of breast cancer with increasing duration of use JAMA 2011;305:1354-5
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Other outcomes after stopping E only
Age group HR (CI) CHD 50-59 0.59 ( ) 60-69 1.00 ( ) 70-79 1.06 ( ) Stroke 1.09 ( ) PE 1.26 ( ) JAMA 2011;305:1354-5
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Editorial These data are derived from subgroup analyses of randomized clinical trials and are not sufficient to alter professional guidelines. Eiran Z. Gorodeski, MD, MPH Heart and Vascular Institute Cleveland Clinic Menopause: The Journal of The North American Menopause Society 2011 ;18:935-6
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RCT for younger women Will the National Institutes of Health or industry invest in a second edition of the Women’s Health Initiative? Sample size required to show 30% treatment effect for age would be 17,251
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Different viewpoints on low CHD risk 50-59 years
Timing hypothesis or Window of opportunity ”If only HT was started early enough before vasculature is compromised then it may be cardioprotective”
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Surrogate outcome studies
Coronary Artery Calcium Study –subset WHI (WHI-CACS) Women < 60 years at study entry Randomised to Estrogen only Decreased coronary artery calcium on E v placebo No data re combined HT. So suggestion of potential cardioprotective effect in younger women NEJM 2007;356:
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Are surrogate outcomes useful?
HT and individual biomarkers Complex interplay of multiple pathways relating to factors such as clotting, atherosclerosis, and inflammation So difficult translate into the overall effect of HT on CVD Clinical endpoints eg MI are needed Am J Epidemiol 2009;170:24-8
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ESHRE-European Society of Human Reproduction and Embryology
In the E only WHI study a subgroup analysis among women aged found 14 less CHD events for women taking E The number needed to treat to prevent one CHD in a year would be 1000. Human Reproduction Update 2006;12:
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Back to Mrs. Grant On further discussion, she had other reasons for wishing to continue using hormone replacement. She had recently asked her general practitioner to send her for a bone mineral density scan, and she brought the result with her. The report said that she had osteoporosis (t score −2.5 at the femoral neck), which she felt was another good reason to continue with the treatment.
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Fig 1 Bone density in the spine is 2.3 standard deviations
below the mean in young women without osteoporosis
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Fig 2 Bone density in the proximal femur is 2.5 standard deviations
below the mean in young women without osteoporosis
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BMD scan report This patient is a 54 year old woman on hormone replacement therapy, which is planned to stop soon. Scans of the lumbar spine and left proximal femur were performed using a lunar dual energy x ray absorptiometry device. Anatomy is unremarkable at both sites. Bone density in the spine is 2.3 standard deviations below the mean value in the young normal population. In the proximal femur it is 2.5 standard deviations below the young normal mean.
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BMD scan report Thus the patient’s bone mineral densities are in the osteoporotic range. Her calculated 10 year risk of a major osteoporotic fracture is 8%. Her calculated 10 year risk of hip fracture is 2.4%. In the absence of a history of fracture, standard lifestyle advice (smoking cessation, weight maintenance, and physical activity, total calcium intake 1g daily, with maintenance of vitamin D sufficiency) is probably all that is necessary at this stage . Repeat bone density scanning in three years would be reasonable.
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Final Advice So advice for Mrs Grant was that she could indeed stop her HT and see if her flushes had now gone Is there a better way to stop??
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Best way to stop HT? RCT of abrupt withdrawal as opposed to taking usual dose alternate days for 4 weeks Women had used hormones for 3-11 years Age years, mean age 58 Power calculation 200 women only had 87 No difference on # or severity of flushes when followed for a year Almost 50% of women (those with most severe flushes) restarted HT by 1 year after discontinuation Menopause 2010;17:72
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WEB 715-medical gynaecology 1
Cervical and breast screening Menstrual disorders-bleeding problems Menstrual disorders-pelvic pain,dyspareunia,PMS Sexually transmitted infections Vaginal discharges Vulval problems Climacteric and menopause (2 weeks)
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