On Wednesday, September 20, 2006, our Ask-the-Expert Online Conference was called Open for Your Questions. Ruth Oratz, M.D., F.A.C.P. and moderator Beth Baughman DuPree, M.D., F.A.C.S. answered your questions covering a wide variety of issues relating to breast cancer.
Question from Dena: My breast cancer was diagnosed when I was 46. I was taking Lo/Ovral 28-day for birth control. What are the best options for me now that hormone therapy is over?
Question from RTaylor: I have been taking Arimidex for five months. Is it possible that it is contributing to an increased deterioration of osteoarthritis of my knees?
Question from HVC: My primary care physician has me on Aricept for some memory problems. Is this becoming standard treatment for chemo brain, which is what he thinks caused the memory problem? I also have concerns about what insurance agencies may think about people being on such a medication in the future, and how it will affect purchasing long term care insurance, etc. Thanks.
Question from MJD: If you are part of a breast cancer study, do you have a right to receive the results in writing instead of just over the phone?
Question from Snowbird: What are survival rates for inflammatory breast cancer? I'm considering breast reconstruction (3 years after chemo) and don't know if it's "worth it."
Question from Earthact: What is the latest on whether DCIS is really cancer or not?
Question from MaureenT: Why would a shadow show on a mammogram and not be seen on an ultrasound? I also had a lump that I could feel not show up on ultrasound.
Question from ArtS: I am only 28, but I have found several lumps in my breast—one toward the bottom of my breast, and one much larger on the top. Am I too young for breast cancer? What are these lumps? Thank you!
Question from Pony: If you have a needle biopsy for a suspicious mammogram, how accurate is it and does it later cause discomfort or aching in the breast?
Question from Patty: Any new updates on ER/PR/HER2-negative breast cancer?
We now are thinking about breast cancer as not just a single disease but as several different subsets, or several different categories of breast cancer based on the biology that is on the molecular characteristics of the tumor cell. These molecular characteristics that we're interested in are the ones that determine the behavior of the cancer cells; for instance, the likelihood that the cancer cells could spread away from the primary site. We are interested in the molecular characteristics that control the growth, the proliferation, and the invasive potential of the tumor cells. The estrogen receptor (ER) and progesterone receptor (PR) are molecular markers that tell us that the cancer cells can respond to hormonal signals, particularly from estrogen. The presence of ER and PR on the cancer cells allows us to use hormonal therapies in order to manipulate, or change, the signal to the cancer cells. In simple terms, we can target those receptors ER and PR with hormonal medication. It is quite effective in preventing the spread or recurrence of breast cancer.
Another molecular marker that we can measure (and there are many) is the HER2/neu receptor. When HER2/neu is present in large amounts on the cancer cells, it confers a more aggressive biologic behavior on the tumor cell. We have very effective targeted therapy against HER2/neu, and the name of that treatment is Herceptin (chemical name: trastuzumab). Herceptin is a biologic treatment, not a chemotherapy drug; rather an antibody that blocks the HER2/neu receptor on the cancer cells. And Herceptin shuts down the signal from HER2/neu. In the so-called triple negative breast cancer, we do not have ER, PR, or HER2/neu as biologic targets. Therefore, we cannot use hormonal therapy or Herceptin in treating this form of breast cancer. At the present time the standard therapy for triple negative breast cancer is chemotherapy. However, there is a great deal of research on this particular subset of breast cancer to identify other biologic targets for which new treatments will be more effective. There is some indication that using drugs like Avastin (chemical name: bevacizumab) might be beneficial for triple negative breast cancer, and a number of new agents are being investigated both in the laboratory and in clinical trials. I would encourage any patient who has this form of breast cancer to pursue participation in clinical trials.
Question from Anna: Can you explain Reiki, and would it help with the side effects I am having with Femara, i.e., still joints?
Question from Chris: Could you tell me if any herbal supplements are helpful in lowering the risk of recurrence?
There is a great deal of interest in sorting out the impact of a variety of complementary therapies on breast cancer. These include herbal treatments, physical therapy as you just heard about (energy therapy, Reiki, acupuncture, yoga), as well as the effects of diet and exercise. It is very, very difficult to demonstrate the impact of these treatments on the course of breast cancer. Nonetheless, there is some preliminary data that yoga and perhaps other forms of exercise may help alleviate side effects and symptoms from breast cancer treatments and also may, in fact, have a beneficial effect on prognosis. We also know that obesity has a negative effect, particularly in post-menopausal women. So diet and exercise may be somewhat helpful in reducing the risk of recurrence in post-menopausal women with breast cancer.
The role of herbal therapies is very difficult to sort out. There are no studies to date that demonstrate either a clear-cut benefit or a clear-cut harm from the use of herbal treatments. Of concern is the fact that some herbal remedies may contain phytoestrogens. These substances are molecules derived from plants, which mimic the activity of estrogen. It is possible, although not definitively proven, that large quantities of phytoestrogens may act like estrogen, and for women who have estrogen-sensitive or ER-positive breast cancer, these agents may be contraindicators. On the other hand, there is some provocative data that perhaps phytoestrogens, and perhaps in particular soy products, may be protective against the development of breast cancer. So we're right now in the time where the information and data about herbal treatments is still somewhat unclear. My recommendation to women with breast cancer is to consult with naturopaths and practitioners who are experts in herbal therapy, as well as consulting with your medical oncologist to find herbal treatments that could be beneficial while not being harmful. I generally recommend avoiding large amounts or high doses of phytoestrogens, but many other herbal treatments can be helpful in managing the side effects of breast cancer or breast cancer treatment. We need more research in this area and I hope that we will see more support for these kinds of investigations in order to answer these questions with good, scientific evidence.
Question from Susie: Are there any ongoing studies for Femara at lower doses?
Question from Krys: I have had a diagnosis of DCIS. I have had a lumpectomy and the surgeon has suggested radiotherapy. I go to an acupuncturist and he has suggested I don't have radiotherapy. I like the idea of no radiotherapy. I would like some advice. I have been told that radiotherapy will damage some of my immune system which is the natural way to protect the body from cancer cells developing.
Question from ReneS: Is the risk of breast cancer any different if you have had breast implants? I had my first breast implants 37 years ago and two implant replacements over the last 20 years. I just found a lump under my left arm and a swelling above my left breast. I'm visiting the breast clinic soon. Is there likely to be any problem with treatment because of having implants? Thank you.
Question from Katrina: I have just finished my chemo and have been on Herceptin for five treatments now. I have been experiencing soreness in my hands as well as the nails blackening. Is there anything to make it more comfortable, and is this common?
Question from Joanne: I am BRCA1 positive, and being treated for triple negative breast cancer. I am considering bilateral mastectomy and oophorectomy, but what if a treatment for triple negatives is found? Will I have gone through a lot of surgery/disfigurement for nothing?
Question from Annamarie: Dr. DuPree, thank you for your new book! I'm glad others are getting a chance to learn from you, as I have as one of your patients.
Question from GHB: Why can't my daughters (ages 27 and 31) get a baseline mammogram, since I've had breast cancer? Why wait until age 40, as their doctor said?
Question from Jax1: Can the PET scan replace the need of a needle biopsy?
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