Assessment of Prematurity by Birth Weight, Crown-Rump Length, and Head Circumference

Assessment of Prematurity by Birth Weight , Crown - Rump Length , and Head Circumference by Richard

In view of the importance now attached to the care of the premature infant, it is highly desirable that stock should be taken of the definitions and classifications in general use, and that the possibility of their improvement should be frequently reviewed. Whilst it is generally recognized that the prospects of survival depend to a much greater extent on functional maturity, e.g. of respiratio...

Updated gestational age specific birth weight, crown-heel length, and head circumference of Chinese newborns.

OBJECTIVE To construct gestation specific standards of birth weight, crown-heel length, and head circumference of Chinese infants. DESIGN A prospective cross sectional population study. METHODS The birth weight, crown-heel length, and head circumference were prospectively measured using standard equipment in newborns delivered at 24-42 weeks gestation in the maternity units of 10 public hos...

SUPINE LENGTH, WEIGHT AND HEAD CIRCUMFERENCE OF NEONATES AT BIRTH IN URBAN AREAS OF ARAK AND FACTORS AFFECTING THEM

Crown-Rump Length Measured in the Early First Trimester as a Predictor of Low Birth Weight

The aim of this study is to assess the association between crown-rump length (CRL) measured before the 10th gestational week and birth weight. Results from 316 transvaginal ultrasonography scans at the 46th, 53rd, 60th, 67th, and 74th days of pregnancy were compared in low birth weight (LBW) versus normal birth weight groups. A positive correlation between CRL and birth weight was observed when...

Standardisation of crown-rump length measurement.

Correct estimation of gestational age is essential for any study of ultrasound biometry and for everyday clinical practice. However, inconsistency in pregnancy dating may occur through differences in measurement methods or errors during measurement. In the INTERGROWTH-21(st) Project, pregnancies are dated by the last menstrual period, provided that it is certain and associated with a regular me...