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Wed, 5 Feb 2003 22:55:37 EST |
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I wrote;
>>>I think what you are saying here is that given the same amount of milk
>removed, the medela classic would be more likely to empty a larger number
>of ducts then the PIS. An interesting hypothesis and not one that i would
>have envisioned. Is there something about pumping physiology that makes
>you think this?<<
Diana responded;
>>n both my experience and the opinions of many LC's, the Classic is a more
effective pump than the Pump-in-Style. Although I don't have either on
hand to quote directly, it is my memory that this assertion is
substantiated in Kittie Franz's "Breastfeeding Product Guide Book
Supplement" (2000) as well as Lois Arnold's "Recommendations for
Collection, Storage and Handling of a Mother's Milk for Her Own Infant in
the Hospital Setting" (1999).<<
I'm sorry that I'm not making myself clear. I am aware of the difference
in suction pressures between pumps and I am not disputing these differences.
I think if you reread my above statement ie. particularly the phrase *given
the same amount of milk removed*, you may better understand my question.
In my mind, the effectiveness of the pump is measured by the efficiency of
milk removal. If both pumps effectively removed the same amount of milk in
the same amount of time(your assertion), what data are you using to support
your other assertion- that the breast is being more *effectively* emptied by
one (classic) vs. the other (PIS). Certainly if you were comparing the baby's
suckling removal of 4oz. vs. a pumps removal of the same, a clear cut case
could be made for the babe's suckling action vs. the alternative BUT in terms
of treating clogged ducts, can a similar distinction be made and supported
between pumps with such similar mechanisms?
(If this sounds contentious, I don't mean for it to !)
Lynn Shea Rn,Bsn,Ibclc
Franklin, Massachusetts
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