Head, circumference

The physical growth scales used are those published by the National Center for Health Statistics percentiles which are based upon the work of Lubchenco et al. in 1966. The infant s weight, height, and head circumference were adjusted for sex and corrected for prematurity. 

The mean head circumference of the four males was at the 10th percentile. The one female s head circumference was at the 50th percenti1e. 

Lubchenco, L.O. Hansman, C. and Boyd. E. Intrauterine growth in length and head circumference as estimated from live births at gestational ages from 26 to 42 weeks. Pedi at.ri cs 37 404-408, 1966. 

Head circumference (less than 3 y of age) Weekly-monthly Monthly... 

A study was conducted on 21 children, aged 18 to 36 months, to examine the potential relationship between the amounts of lead ingested in food and anthropometric measurements (height, weight, head circumference, and mid-upper arm circumference) (Stanek et al. 1998). The children resided in homes... 

Special pediatric considerations Height/length Head circumference... 

Neonatal Cocaine freely crosses the placental barrier, and prenatal exposure to cocaine alters neurobehavioral development in rat pups (Sobrian et al. 1990). The effects on humans exposed prenatally to cocaine is a complicated matter, because so many other concurrent factors contribute to development. Common confounds are prenatal care and maternal polydrug use. Prenatal cocaine use is associated with reduced gestational age, birth weight, body length, and head circumference (Richardson et al. 1999). In children exposed prenatally to cocaine, some studies have shown behavioral differences evident at 1 to 3 years of age (Richardson et al. 1993 Richardson 1998). Associations are also made with impulsivity and attention deficits at age 6 (Leech et al. 1999). 

Head circumference Abdominal area Abdominal circumference Femiu- length Stomach and urinary bladder (checked for content) Tail (external abnormalities) Aorta umbilicalis (blood flow) 156 ( 1 day)... 

Abuse of cocaine during pregnancy is associated with increased rates of prematurity, low birth weight, respiratory distress, bowel and cerebral infarctions, reduced head circumference, and increased risk of seizures (Keller and Snyder-Keller, 2000). Infants prenatally exposed to cocaine show abnormal habituation and impaired attention. 

Hazlett HC, Poe M, Gerig G, Smith RG, Provenzale J, Ross A, Gilmore J, Piven J (2005) Magnetic resonance imaging and head circumference study of brain size in autism birth through age 2 years. Arch Gen Psychiatry 62 1366-1376. 

Berkowitz, G.S., J.G. Wetmur, E. Birman-Deych, J. Obel, R.H. Lapinski, J.H. Godbold, I.R. Holzman, and M.S. Wolff. 2004. In utero pesticide exposure, maternal paraoxonase activity, and head circumference. Environ. Health Perspect. 112(3) 388-391. 

In the assessment of human development, head circumference appears to be a... 

Physical examination revealed a hyperactive boy with normal height and head circumference. His face was somewhat square with a prominent forehead, everted ears, and absent left lower incisor, like his elder brother (Fig. 1-lb). Developmental quotient was assessed as 47% of normal. He had a short attention span but no social aversion or hand mannerisms. At the age of 20 months, EEG and acoustic brainstem response were unremarkable however, from 18 months, massive epileptic discharges had become evident in the bilateral parieto-occipital regions during sleep. 

Birth weight a mean at approximately the 70th percentile Height mostly between 50th and 97th percentiles Head circumference slightly increased... 

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