Menopause, osteoporosis, pediatric gynecology Flashcards
(28 cards)
Primary outcome of WHI
MI and acute coronary death
Primary adverse event of WHI
Breast cancer
Interventions assessed in WHI
HRT, low fat diet, calcium / vit D supplementation
CVA and DVT outcomes with HRT in WHI
CVA increased in women >65 y/o
DVT risk doubled
Impact of HRT on fracture risk
Significant decrease in fracture risk, especially hip
Stratified for women 50-59 y/o, WHI outcomes for HRT use…
30% decrease in all-cause mortality
CHD risk indeterminate
Contraindications to HRT
Pregnancy, breast cancer, estrogen-sensitive tumor, undiagnosed VB, severe liver disease, history of DVT
Non-hormone alternatives to HRT
Progesterone (not FDA approved), SSRI (paroxetine, contraindicated with Tamoxifen), clonidine, gabapentin, soy products
DXA measurement sites
Lumbar spine, total hip, femoral neck
How T score works
Compares to growth phase peak cohort, intended for use in postmenopausal women
T score values
-1 to -2.5 is osteopenia
< -2.5 is osteoporosis
How Z score works
Compares to age-matched cohort for women <40 y/o
When to start screening with DXA
65 y/o or younger if FRAX 10-year risk >9.3%
When to repeat DXA screening
q2yrs during treatment
q1-5 yrs if osteopenic
q15yrs if normal T-score
Start pharmacologic treatment in osteopenia if…
FRAX 10 yr hip risk >3% or major fracture risk >20%
Prevention of osteoporosis
Lifestyle factors, calcium / vit D supplementation, HRT (loses benefit 2 yrs after stopping)
Mechanism of bisphosphonates
Inhibit osteoclasts, reduce inhibition of osteoblasts
Contraindications to bisphosphonates (specifically zoledronate)
- Renal failure
- Cr >2.0
- Hypocalcemia
Side effects of bisphosphonates
GI irritation, ulcers, hypocalcemia, atypical hip fracture, esophageal cancer (rare), osteonecrosis of jaw (rare except with IV dosing)
SERMs for osteoporosis treatment
Raloxifene (dec spine fx and inc BMD), tamoxifen (does same but not FDA approved)
Sequential therapy for osteoporosis
Consider early SERM use < 60 y/o then bisphosphonates > 60 y/o x 5-10 yrs
Teriparatide (Forteo) mechanism
PTH analogue = increase osteoblasts, decrease osteoclasts
Time frame for teriparatide use
Up to 2 yrs, then rapid bone loss of discontinuation (consider bisphosphonate or SERM)
Denosumab (Prolia) mechanism
KB ligand nuclear receptor monoclonal antibody that blocks osteoclast activation