Birth - Macrosomia: Difference between revisions
From Embryology
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==Introduction== | ==Introduction== | ||
[[File:Galletti1770_birth2.jpg|thumb|Historic model of birth]] | [[File:Galletti1770_birth2.jpg|thumb|Historic model of birth]] | ||
Macrosomia (large gestational age, LGA) is a term used to describe a newborn with an excessive birth weight. The definition is either a birth weight of 4000 to 4500 g (8 lb 13 oz to 9 lb 15 oz) or greater than 90% for gestational age after correcting for neonatal sex and ethnicity. | Macrosomia (large gestational age, LGA) is a term used to describe a newborn with an excessive birth weight due to a range of known and unknown causes. The definition is either a birth weight of 4000 to 4500 g (8 lb 13 oz to 9 lb 15 oz) or greater than 90% for gestational age after correcting for neonatal sex and ethnicity. | ||
# Duration of gestation - growth past the due date. | |||
# Maternal diabetes - presence of gestational diabetes; and class A, B, and C diabetes mellitus. | |||
# Genetic Syndromes and Tumours - a range of overgrowth syndromes associated with developmental delay, tumors, and other anomalies with genetic causes and syndromes (Pallister-Killian, Beckwith-Wiedemann, Sotos, Perlman, and Simpson-Golabi-Behmel) rarely diagnosed prenatally. | |||
Currently there is clinical research looking into the best mathematical formula, based upon ultrasound measurements, to estimate the possibility of macrosomia occurring. | Currently there is clinical research looking into the best mathematical formula, based upon ultrasound measurements, to estimate the possibility of macrosomia occurring. |
Revision as of 11:39, 26 February 2012
Introduction
Macrosomia (large gestational age, LGA) is a term used to describe a newborn with an excessive birth weight due to a range of known and unknown causes. The definition is either a birth weight of 4000 to 4500 g (8 lb 13 oz to 9 lb 15 oz) or greater than 90% for gestational age after correcting for neonatal sex and ethnicity.
- Duration of gestation - growth past the due date.
- Maternal diabetes - presence of gestational diabetes; and class A, B, and C diabetes mellitus.
- Genetic Syndromes and Tumours - a range of overgrowth syndromes associated with developmental delay, tumors, and other anomalies with genetic causes and syndromes (Pallister-Killian, Beckwith-Wiedemann, Sotos, Perlman, and Simpson-Golabi-Behmel) rarely diagnosed prenatally.
Currently there is clinical research looking into the best mathematical formula, based upon ultrasound measurements, to estimate the possibility of macrosomia occurring.
Some Recent Findings
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References
Reviews
Articles
<pubmed>18598122</pubmed>
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Search Pubmed: Macrosomia | high birth weight