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Risk in Mother-Infant Separation Postbirth. Gene Cranston Anderson. Image:
Journal of Nursing scholarship21(4), Winter 1989, pp.196-199.
Dr Anderson has lots to say about crying - none of it good :-)
"The belief that newborn infants need to cry is not true." G.C. Anderson
The effects of infant crying and startling in first 4-5 days of life.
* increase in blood pressure
*intracranial pressure rises when BP rises.
*poorly oxygenated blood flows back into systemic circulation rather than
into the lungs.
*large fluctuations in blood flow occur.
*increasing cerebral volume
*decreasing cerebral oxygenation
* a fluctuating pattern of blood flow is associated with intracranial
hemorrhage
Effects of infant separation
* >10 times more crying and startling than infants who stayed with their
mothers
*separation delays stabilization of:
* temperature
* pulse
* respiration
*Less sucking pressure when feeding
*mothers use more pain and sleep medications than non separation mothers
* Less maternal stimulation at night (when prolactin levels are 10 X
greater) leads to delayed lactation.
She also has a theoretical paradigm
Stressor -> Crying (modified valsalva manuever) -> 1, 2 & 3
1. Increased cortisol -> increased BP -> intracranial hemorrhage
2. decreased sucking pressures -> poor feeding
3. Prolonged exhalation -> obstructed venous return -> quick inspiratory
gasp -> foramen ovale shunting -this leads to 1a & 2a
1a. Delayed foramen ovale closure -> persistent foramen ovale
2a. Increased fluctuations -> increased BP & cerebral blood flow &
cerebral blood flow velocity & intracranial pressure - all of which lead
to intracranial hemorrhage.
Increased fluctuations -> hypoxemia -> increased capillary fragility ->
intracranial hemorrhage and/or delayed ductus arteriosus closure
Rationale for Grant # R01NR02444, funded 2-1-91 by Nat Ctr for Nursing
Research, NIH.
This has come out of her research for Kangaroo Care.
Sincerely, Pat in SNJ
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> From: Alicia Dermer <[log in to unmask]>
> To: [log in to unmask]
> Subject: adverse effect of infant crying
> Date: March 28, 2001 08:46 AM
>
> Hi, all: I have been asked for references on the possible adverse
> effects of crying on infants' systems (cardiorespiratory, neurological,
> etc). Although I clearly recall this being discussed on Lactnet, I
> could find nothing in the Archives. If anyone has any knowledge of this
> issue, please contact me (privately please, as I am just lurking
> currently). TIA, Alicia Dermer, MD, IBCLC.
>
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