Fetal Biometry Nomogram Based on Normal Population : an Observational Study

• Main Authors: Aria Wibawa, Amanda Rumondang
• Format: Article
• Language: English
• Published: Indonesian Society of Obstetrics and Gynecology 2018-07-01
• Series: Indonesian Journal of Obstetrics and Gynecology
• Online Access: http://inajog.com/index.php/journal/article/view/779
• ISSN: 2338-6401; 2338-7335

Objective: To establish fetal biometry nomogram using percentile method based on normal population.   Methods: A descriptive retrospective study in order to establish fetal biometry nomogram using percentile method based on normal population. Four fetal biometry measurement (BPD, HC, AC and FL) was collected from ultrasonography examination result in Fetomaternal Division Ultrasound Unit - Anggrek Clinic and from medical record unit Dr. Cipto Mangunkusumo General Hospital, from January 2015 until April 2016. Data being documented using case report form and being tabulated using Microsoft Excell 2011 Version 14.7.0 (161029). All data were analyzed using SPSS 20.0 dan Matlab R2016a.   Results: There were 6169 pregnant women underwent fetal biometry ultrasound within January 2015 - April 2016. Based on inclusion criteria, 2798 (45%) were eligible as research sample distributed from 12 until 42 wga. Due to evenly distribution data, 2205 (78%) were distributed from 20 until 40 wga to develop fetal biometry nomogram. Most pregnant women were 28.9 years old (SD  5.74) in range of 21-30 (55%) years old. The youngest was 13 years old and the oldest was 45 years old. Four fetal biometry were collected and distributed evenly using percentile method to establish fetal biometry nomogram. As for estimated fetal weight curve was developed by Hadlock C formula. Each biometry was calculated the 10th, 50th and 90th centile curves according to gestational age. Thus, representing the fetal biometry and modified Hadlock C estimated fetal weight nomogram based on normal population in Jakarta.   Conclusion: Each biometry and modified Hadlock C estimated fetal weight were calculated in 10th, 50th and 90th centile curves according to gestational age represent fetal biometry nomogram based on normal population in Jakarta. Keywords: biometry, estimated fetal weight formula, nomogram