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[Should ultrasound examination be performed earlier in pregnancy?]

J Bergh1

  • 1Gynekologisk/obstetrisk avdeling, Sentralsykehuset, Rogaland, Stavanger.

Tidsskrift for Den Norske Laegeforening : Tidsskrift for Praktisk Medicin, Ny Raekke
|November 10, 1992
PubMed

Insights

Ultrasound dating may misjudge due to early fetal growth retardation. Earlier ultrasound examinations are recommended for a more accurate estimated delivery date, improving perinatal care.

Area of Science:

  • Obstetrics and Gynecology
  • Perinatal Medicine
  • Medical Imaging

Background:

  • Perinatal deaths in 1991 at Rogaland hospital were analyzed.
  • Fetal growth retardation was assessed relative to estimated delivery dates.
  • Discrepancies between ultrasound and Naegele's rule for dating were noted.

Purpose of the Study:

  • To investigate the impact of fetal growth retardation on estimated delivery dates.
  • To evaluate the accuracy of ultrasound dating in cases of growth-retarded fetuses.
  • To recommend improvements in ultrasound examination protocols for dating.

Main Methods:

  • Retrospective analysis of perinatal deaths.
  • Comparison of delivery dates estimated by ultrasound and Naegele's rule.
  • Categorization of fetal growth based on percentile ranks.

Main Results:

  • Seven babies exhibited severe growth retardation (< 3rd percentile).
  • Five babies showed moderate growth retardation (3rd-10th percentile).
  • Ultrasound dating was 18 days late for severely growth-retarded fetuses, 8 days for moderately, and 5 days for others, compared to Naegele's rule.

Conclusions:

  • Ultrasound dating at 18-19 weeks can lead to misjudgments in cases of early fetal growth retardation.
  • Earlier ultrasound examinations are crucial for reliable estimated delivery dates.
  • Integrating growth assessment with dating may enhance perinatal care and reduce misjudgments.

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