Placental insufficiency: Difference between revisions
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'''Placental insufficiency''' is insufficient blood flow to the [[placenta]] during [[pregnancy]]. It may have an impact upon the CNS.<ref name="pmid19732613">{{cite journal |author=Redline RW |title=Disorders of placental circulation and the fetal brain |journal=Clin Perinatol |volume=36 |issue=3 |pages=549–59 |year=2009 |month=September |pmid=19732613 |doi=10.1016/j.clp.2009.06.003 |url=}}</ref> |
'''Placental insufficiency''' is insufficient blood flow to the [[placenta]] during [[pregnancy]]. It may have an impact upon the central nervous system(CNS).<ref name="pmid19732613">{{cite journal |author=Redline RW |title=Disorders of placental circulation and the fetal brain |journal=Clin Perinatol |volume=36 |issue=3 |pages=549–59 |year=2009 |month=September |pmid=19732613 |doi=10.1016/j.clp.2009.06.003 |url=}}</ref> |
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The term is also sometimes used to designate late decelerations of fetal heart rate as measured by electronic monitoring, even if there is no other evidence of reduced blood flow to the placenta. |
The term is also sometimes used to designate late decelerations of fetal heart rate as measured by electronic monitoring, even if there is no other evidence of reduced blood flow to the placenta. |
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Revision as of 23:31, 11 May 2012
| Placental insufficiency | |
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| Specialty | Neonatology, obstetrics, maternal–fetal medicine  |
Placental insufficiency is insufficient blood flow to the placenta during pregnancy. It may have an impact upon the central nervous system(CNS).[1]
The term is also sometimes used to designate late decelerations of fetal heart rate as measured by electronic monitoring, even if there is no other evidence of reduced blood flow to the placenta.
The normal uterine blood flow rate at term is 600 mL/min.
Sequelae
Placental insufficiency can affect the fetus, causing Fetal distress.
Placental insufficiency may cause oligohydramnios or intrauterine growth restriction (IUGR).
Causes
Placental insufficiency can be induced experimentally by bilateral uterine artery ligation of the pregnant rat.
Placental insufficiency can be caused by placental abruption.
References
- ^ Redline RW (2009). "Disorders of placental circulation and the fetal brain". Clin Perinatol. 36 (3): 549–59. doi:10.1016/j.clp.2009.06.003. PMID 19732613.
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