Dear Anne,
Good job of helping your relactating mom re-establish such a good milk
supply for her baby who is recovering from cardiac surgery.  I think I have
an idea which may hook her on cont. to offer breastmilk rather than soy
formula (even tho baby throws up a bit more milk, possibly due to maternal
dairy intolerance.)  Tell her the good news (based on the work of Dr. Arnold
Goldman) that human milk contains not only anti-infective and immune
boosting factors, but ALSO anti-inflammatory agents which will really help
that tiny heart recover from surgery.  Tell her that the throwing up is such
a minor laundry problem in the face of what she can offer the baby in terms
of living medicine to help her get stronger.  I read recently that ice cream
contains about 22 x the amount of the bovine protein that is antigenic in
humans.  Maybe you can gently review her diet with regard to types of dairy
she is consuming.  Perhaps she could cont. some if she could reduce other
types.  Also remind her that she doesn't have to commit to pumping forever,
and that if she can't face going on, she can set herself a termination date,
say in a month when baby is better.  Often people can manage to do something
longer if they know they don't have to commit to forever.  Also, please give
her a newborn small nipple shield, get baby skin-to-skin and drip milk on
the shield.  If you can get this baby to breast, and if she can decrease the
pumping to just some post-feed extra stimulation (to protect the supply and
obtain hind-milk for supplementation,) she will be so delighted she just may
keep going.
Good luck!

Barbara

Barbara Wilson-Clay, BS, IBCLC
Private Practice, Austin, Texas
Owner, Lactnews On-Line Conference Page
http://moontower.com/bwc/lactnews.html