DIMINISHED BIPARIETAL DIAMETER AND ABDOMINAL CIRCUMFERENCE GROWTH IN TWINS

  • 1 January 1984
    • journal article
    • research article
    • Vol. 64  (2) , 235-238
Abstract
Women (43) with uncomplicated twin pregnancies and reliable menstrual dates had serial ultrasonic measurements of the fetal biparietal diameter (BPD) and abdominal circumference. The 25th, 50th and 75th fetal BPD and abdominal circumference growth percentiles were generated from this normal twin population and compared with those for singletons. A slowing of both BPD and abdominal circumference growth in twins was noted in the 3rd trimester. Newborn anthropometric data were collected that suggest that the head circumference of twins is comparable to that of singletons. This discrepancy between ultrasonic BPD and neonatal head circumference in predicting head size may possibly be explained by dolichocephaly attributed to uterine crowding. For the antenatal assessment of growth in twins, the use of BPD and abdominal circumference charts derived specifically from such uncomplicated twin pregnancies is recommended. When the BPD growth is abnormal, the head circumference and abdominal circumference should be measured to assess whether or not fetal growth is normal.

This publication has 6 references indexed in Scilit: