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Date: | Sun, 6 Nov 2005 08:49:36 EST |
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Dear Friends:
Seema asks for research about the deleterious effects of infant
screaming.
Gene Cranston Anderson has talked about this at conferences. Prolonged
hard crying prevents the foramen ovale from closing entirely; there are
estimates that 20% of the adult population has a partly open foramen ovale, which
she says could be a reason for unexplained death in otherwise healthy adults.
Her theoretical paradigm is that crying leads to delayed foramen ovale
shunting which leads to hypoxemia. Hypoxemia increases capillary fragility.
When the baby is not oxygenating consistently, there are fluctuations in blood
pressure, intravenous pressure, and cerebral blood flow. This increases
susceptibility to intraventricular hemorrhage, even in full term infants.
Another result of persistent hard crying is increased cortisol levels.
Dr. Anderson has a huge bibliography about the impact of elevated cortisol in
separated infants postbirth, and of the benefits of skin to skin (s2s) care.
This is her life work, and I encourage everyone to go see her at any
opportunity.
A google search will reveal her many citations.
warmly,
Nikki Lee RN, MS, Mother of 2, IBCLC, CCE
Maternal-Child Adjunct Faculty Union Institute and University
Film Reviews Editor, Journal of Human Lactation
www.breastfeedingalwaysbest.com
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