macrosomia
Pronunciation: mak-row-SO-mee-ah
Condition where a newborn has excessive birth weight, typically defined as greater than 4000 or 4500 grams.
Full Definition
Macrosomia refers to excessive fetal growth resulting in birth weight significantly above normal ranges, commonly defined as greater than 4000 grams (8 pounds 13 ounces) or greater than the 90th percentile for gestational age. The condition is associated with maternal diabetes, prolonged pregnancy, maternal obesity, and previous history of macrosomic infants. Macrosomic infants face increased risks of birth trauma, shoulder dystocia, hypoglycemia, and childhood obesity. The diagnosis appears in delivery records, neonatal assessments, and endocrine evaluations. Precise weight documentation and risk factor identification are essential for appropriate management and future pregnancy counseling.
Usage
Usage note: Distinguish from 'large for gestational age' which is percentile-based rather than absolute weight-based.
In Context
- "The infant was diagnosed with macrosomia, weighing 4800 grams at birth." — Birth certificate documentation
- "Maternal diabetes contributed to fetal macrosomia development." — Obstetric consultation