Related Experiment Video
Updated: Aug 3, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Intrapartum prediction of macrosomia: accuracy of abdominal circumference estimation
1Department of Obstetrics and Gynecology, Cairo University, Cairo, Egypt. kaainih@idsc1.gov.eg
Objective:
To evaluate the accuracy of abdominal circumference (AC) estimation of macrosomia early in labor and whether a cutoff value could be detected.
Design:
A prospective clinical trial.
Setting:
The Department of Obstetrics and Gynecology, Cairo University.
Participants:
One hundred pregnant females presenting in early labor with clinical impression of macrosomia were examined by ultrasound, and those babies with abdominal circumference more or equal to 35 cm were recruited for the study.
Interventions:
Every woman was considered as her own control, and fetal weight was calculated using the formula of Shepard et al. The accuracy of abdominal circumference in prediction of macrosomia was evaluated using the Receiver operating characteristic curve.
Results:
A cutoff value of AC > or =37 cm was found to have a sensitivity of 77%, a specificity of 75%, a positive likelihood ratio of 3.1 and a negative likelihood ratio of 0.3.
Conclusion:
Intrapartum ultrasonographic evaluation of abdominal circumference for suspected macrosomic babies in early labor is an easy, practical method that should be adopted in decision making.
Related Concept Videos
Assessment of the Abdomen III: Palpation
Assessment of the Abdomen I: Inspection and Auscultation
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection.
Assessment of the Abdomen II: Percussion
Percussion
Percussion is an essential...

