Biparietal diameter in premature rupture of membranes: Errors in estimating gestational age

✍ Scribed by Robert N. Wolfson; Ivan E. Zador; Philip Halvorsen; Brenda Andrews; Robert J. Sokol

• Book ID: 102331443
• Publisher: John Wiley and Sons
• Year: 1983
• Tongue: English
• Weight: 311 KB
• Volume: 11
• Category: Article
• ISSN: 0091-2751
• DOI: 10.1002/jcu.1870110705

✦ Synopsis

Experience on our clinical service suggested that the real-time ultrasonically measured fetal biparietal diameter (BPD) might not accurately estimate gestational age in the preterm pregnancy complicated by premature rupture of membranes (PROM). Of 2510 consecutive pregnancies for which the BPD could be obtained on ultrasound examination at or beyond 26 weeks gestation, 122 were complicated by PROM. For pregnancies with and without PROM, the relationship, if any, between BPD and gestational age at the time of examination was determined by regression analysis and the resulting equations compared by F test. The regression equations were