Menopause Part II: Hormone-Replacement Therapy

Today we’re talking on menopause once more with Dr. Renee Eger, assistant professor and clinician educator at the Warren Alpert Medical School of Brown University. We spend the second half of our menopause series reviewing HRT and the Women’s Health Initiative (WHI).

You can read more about the WHI here. The study really is two study methodologies in one: there were up to three randomized-controlled trial arms, and an observational arm. The components concerning HRT are dealt with through one of the RCTs.

The RCT dealing with HRT enrolled women into one of three arms: a placebo, an estrogen-only arm in patients without a uterus, or and estrogen-progesterone combination in patients with a uterus. The study was halted at 5.2 years in the E-P arm due to an increase in coronary heart disease, breast cancer, VTE, and stroke, which outweighed a benefit noted in colorectal cancer and fracture risk. The E-alone arm was stopped at 6.8 years average follow up, when the risk of heart disease was found not to be different than placebo.

Subsequent studies, including the Heart and Estrogen/progestin Replacement Study (HERS) have demonstrated at least that E-P and E should not be used for primary or secondary prevention of coronary disease, and thus HRT should not be prescribed for these indications. However, many benefits are particularly pronounced in younger patients using HRT. Thus, the position of the North American Menopause Society (NAMS) reads (emphasis ours):

“For women aged younger than 60 years or who are within 10 years of menopause onset and have no contraindications, the benefit-risk ratio is most favorable for treatment of bothersome VMS and for those at elevated risk for bone loss or fracture.

”For
women who initiate HT more than 10 or 20 years from menopause onset or are aged 60 years or older, the benefit-risk ratio appears less favorable because of the greater absolute risks of coronary heart disease, stroke, venous thromboembolism, and dementia.

Longer durations of therapy should be for documented indications such as persistent VMS or bone loss, with shared decision making and periodic reevaluation. For bothersome GSM symptoms not relieved with over-the-counter therapies and without indications for use of systemic HT, low-dose vaginal estrogen therapy or other therapies are recommended.”

How should you prescribe HRT or other medications to relieve VMS? Below is a summary from ACOG PB 141. Check out CO 565 and CO 556 as well if you are really interested in the topic!

Menopause Part I: Diagnosis and Non-Hormonal Therapies

Today’s episode features Dr. Renee Eger! Dr. Eger is an Assistant Professor at the Warren Alpert Brown University SOM, and is a North American Menopause Society (NAMS) Certified Menopause Practitioner. She is talking with us this week and next about menopause.

The ACOG PB 141 on Management of Menopausal Symptoms is an excellent resource for all therapies in use for menopausal symptoms. We’ll cover some additional resources for hormonal therapy on next week’s episode. The high yield points for today include:

-Menopause is the cessation of menses for 1 year. The average age of onset in the US is 51.
-Lifestyle modifications are first-line therapy for both vasomotor symptoms of menopause (VMS) and genitourinary syndrome of menopause (GUSM), formerly known as vulvovaginal atrophy.
-Paroxetine 7.5mg daily (Paxil) is the only FDA-approved non-hormonal pharmacologic treatment for VMS.

Osteoporosis

Today’s episode was recommended by @KatieSmithMD on Twitter. Thanks, Katie!

Did you know there was a Practice Bulletin about osteoporosis? We didn’t either, but ACOG PB 129 is excellent reading though! (ACOG membership required)

We don’t touch much in the podcast on “secondary osteoporosis,” that is osteoporosis due to other medical conditions. There are a number of things that can predispose women to this that you should also keep in mind, especially if the patient has a particularly low Z-score (score relative to others their age), or if you have a younger postmenopausal woman who experiences a fracture.

ACOG PB 129

There are also a number of medications that you can use to treat osteoporosis, reviewed extensively in PB 129. However, likely highest yield for your practice and for CREOGs are Calcium and Vitamin D requirements for women based on age:

ACOG PB 129

Finally, be familiar with the FRAX score, and when to initiate workup of osteoporosis in the postmenopausal patient. The flowchart below also comes from PB 129. Didn’t we say it makes for some excellent reading?

ACOG PB 129