Postmature birth

Postmature birth


Caption =
DiseasesDB = 10417
ICD10 = ICD10|P|08|2|p|05
ICD9 = ICD9|766.22
MedlinePlus =
eMedicineSubj = med
eMedicineTopic = 3248
MeshID = D007233
In order for an infant to be considered postmature, they must be born after 42 week gestation. [ cite web|url= |title=Postmature Infant |accessdate=2008-10-06 |last=Kendig |first=James W |date=March 2007 |work=The Merck Manuals Online Medical Library ]


In such a birth the placenta can begin to fail, causing declining delivery of oxygen and nutrients to the fetus. This can result in the death of the fetus if delivery is not induced. Postmature newborns are typically thin and underweight, with slender limbs, dry wrinkled skin and longer hair and nails. [Clifford SH. Postmaturity with placental dysfunction. Clinical syndromes and pathologic findings. J Pediatr 1954;44:1-13 ]


The first few days after delivery are the most critical, and infants living beyond that period have a high survival rate. A postmature child will have slightly less colored to gray eyes, as compared to a healthy newborn.


It is also known as "Ballantyne-Runge syndrome". [WhoNamedIt|synd|1288] [J. W. Ballantyne. The problem of the postmature infant. The Journal of Obstetrics and Gynaecology of the British Empire, London, 1902, 2: 512-554.] [H. Runge. Über einige besondere Merkmale der übertragenen Frucht. Zentralblatt für Gynäkologie, Leipzig, 1942, 66: 1202-1206.]


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