Ballard tool

(redirected from Ballard score)

Ballard tool

, Ballard score (bal′ărd)
[Jeanne Ballard, American neonatologist]
A system for estimating newborn gestational age by rating physical and neuromuscular characteristics of maturity. For infants born between 20 and 28 weeks' gestation, Ballard tools are more accurate than other systems of estimating gestational age. Six neuromuscular markers are assessed: posture, square window (degree of wrist flexion), arm recoil, popliteal angle (degree of knee flexion); scarf sign (ability to extend infant's arm across the chest past the midline); and heel-to-ear extension. Seven physical characteristics are also evaluated: skin; lanugo; plantar creases; breast; eye and ear; and genitals. Each factor is scored independently, and then an overall sum is used to determine the gestational age. The tool is most accurate if performed within the first 12 to 20 hr of life or as soon as the baby's condition stabilizes.
References in periodicals archive ?
Assessment of gestational age of newborns using New Ballard Score (NBS) may not be reliable as its accuracy depends on the skill of examiner (9) and the condition of the neonate.
Using the data of randomly-selected 800 neonates out of 1,000, the relationship between each of the 10 anthropometric indicators (W, CHL, HC, MUAC, US, CaC, UND, HL, FL, and IMD) and the gestational age as determined by the New Ballard Score was derived, using linear and non-linear regression.
10] If there was disparity of 2 weeks or more, the gestational age according to the Ballard Score was used.
instrumental doublings) than the Ballard score needs qualification.
addition of 9 months and 7 days to the first day of LMP and by Extended New Ballard Score.
While LMP underestimated the ultrasound finding by one day with a wide confidence interval ([+ or -] 11 days), the Ballard score underestimated gestational age by 2.
The Dubowitz score, which requires 22 clinical items, was also reliable by all three measurements, although slightly less so than the Ballard score (Table).
Ballard score done within 1224 hours of birth was used for determining the gestational age of neonates born at the study hospital.
We, therefore, used Ballard score for comparing gestation period, and this was feasible for babies born at the study hospital (n=171).
ON THE CHARGE: Crusaders' Paul Ballard scores a try against Widnes Vikings in the Northern Rail Cup
ON THE MARK: Paul Ballard scores a try for Celtic Crusaders; ON THE CHARGE: Celtic Crusaders' Mark Dalle Cort breaks free Pictures: Peter Bolter