There's no research to indicate that lactating makes chemo less 
effective. The chemo can injure the healthy breast if mom maintains 
lactation, because the lactocytes are metabolically very active, so her 
milk production may be very low. Another issue is hormones, which 
receptor(s) are expressed in the tumor? Lactation suppresses estrogen 
and progesterone, and may slow the growth of an estrogen and/or 
progesterone positive tumor (and pregnancy will fuel growth in such a 
tumor).

Poor momma. The possibility of relactation/induced lactation may help 
her to feel some hope for the future.

Catherine Watson Genna BS, IBCLC  NYC  www.cwgenna.com

On 9/27/2015 2:28 AM, Rachel Myr wrote:
> Does anyone her have ANY information or experience with this?
> Mother is to start a six month course of chemo before surgery, and will
> have radiation for six months post surgery. She has been advised in no
> umcertain terms that she should suppress lactation completely as her
> treatment team fears the chemo will be less effective in a lactating breast
> and they don't really prioritize (or understand her desire for) maintaining
> milk production in the other breast when the chemo means she will not be
> able to let her baby have her milk for these six months. Baby is newborn,
> ca was discovered in week 37 of pregnancy and she was induced a few days
> later to enable treatment. No metastases found on MR or skeletal
> scintography.
> All responses welcome :)
> Rachel Myr
> Kristiansand, Norway
>
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