Sexual dysfunction is a common problem among breast cancer survivors, but it’s also an issue inadequately addressed by either ob.gyns. or hematologists and oncologists, according to Erin Keyser, MD, the program director of the San Antonio Uniformed Services Health Education Consortium. Dr. Keyser discussed management of sexual dysfunction and a variety of other issues frequently faced by women who have survived breast cancer at the at the 2021 virtual meeting of the American College of Obstetricians and Gynecologists.
“Despite the fact that no specialty is better qualified to render care for this consequence of cancer treatments, many obstetrician-gynecologists feel uncomfortable or ill-equipped to address sexual pain in women affected by cancer,” Dr. Keyser quoted from a 2016 article in Obstetrics & Gynecology about the sexual health of women affected by cancer. As a breast cancer survivor herself, Dr. Keyser said hematologists and oncologists are even less equipped to discuss sexual health, “so oftentimes patients get punted between their hem-onc and their gyn,” with each telling the patient to ask the other specialist.
“There’s plenty of data in chronic health disease that maintaining sexual function for women is an indicator of the overall quality of life and that many women really don’t want to bring this up,” Dr. Keyser told attendees, so the onus is on the ob.gyn. to bring it up.
The effects of breast cancer treatment can impact women’s body image, fertility, menopause, sexual function, osteoporosis, and cardiovascular disease, but the bulk of Dr. Keyser’s talk focused on sexual health and bilateral salpingo-oophorectomy (BSO).
Lauren Streicher, MD, a clinical professor of obstetrics and gynecology at Northwestern University, Chicago, thought Dr. Keyser’s talk was useful for the general gynecologist but had some concerns about a few parts.
“She gave a very thoughtful analysis of whether someone should have their ovaries removed or not in a breast cancer diagnosis, ” Dr. Streicher said in an interview. “I would have liked to hear more about the consequences of an early menopause in women in terms of heart health, bone health, and cognitive function.”
Dr. Keyser noted that her talk pertained mostly to survivors of estrogen receptor (ER)–positive breast cancer since that population tends to struggle most with side effects of treatment. The most common medications used in this population are tamoxifen and aromatase inhibitors – such as anastrazole, letrozole, and exemestane – and these medications can affect management of different concerns.
Current guidance on ovarian removal
For women with a BRCA mutation, ACOG clinical guidance already exists regarding BSO. For other women, the complementary TEXT and SOFT trials changed the management of breast cancer treatment in premenopausal women, Dr. Keyser said.
Before these trials, postmenopausal hormone receptor–positive women began aromatase inhibitors and premenopausal HR-positive women began tamoxifen. These trials found that premenopausal women with HR-positive early breast cancer were less likely to experience recurrence when receiving adjuvant treatment with exemestane plus ovarian suppression compared to tamoxifen plus ovarian suppression. Ovarian suppression was achieved by either GnRH agonist injections, surgical removal of the ovaries, or radiation therapy to the ovaries.
The side effects of these treatments included hot flushes (92%), depression (87%), musculoskeletal symptoms (89%), vaginal dryness (52%), decreased libido (45%), dyspareunia (31%), osteoporosis (39%), insomnia (58%), and fatigue (61%). These are all quality of life concerns, Dr. Keyser said, and these findings raise questions about the consequences of long-term ovarian suppression. Findings from the Nurses’ Health Study showed that BSO before age 47.5 years resulted in lower mortality from ovarian cancer and breast cancer but was linked in women under 50 to increased all-cause mortality and mortality from coronary heart disease, lung cancer, and colorectal cancer, compared with ovarian conservation. Further, 74% of women who undergo risk-reducing BSO experience sexual dysfunction.
The bottom line, Dr. Keyser said, is that “premature removal of ovaries is not completely benign.” Her own recommendation is to follow ACOG guidance for women with BRCA mutations and, for women aged under 35 years, use ovarian suppression for 5-10 years, after which ovarian function may resume along with improved quality of life. In women aged over 40, remove ovaries since, after 5-10 years of treatment, there’s likely no benefit of retaining ovaries.