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The realities of screening for the small for dates fetus using ultrasound measurement
Insights
Ultrasound screening for small for dates fetuses improved diagnosis rates. However, this did not significantly reduce perinatal mortality or morbidity in affected infants compared to clinical examination methods.
Area of Science:
- Obstetrics and Gynecology
- Fetal Medicine
- Diagnostic Imaging
Background:
- Small for gestational age (SGA) fetuses pose risks for perinatal complications.
- Accurate identification of SGA fetuses is crucial for timely intervention.
- Current diagnostic methods include clinical examination and ultrasound biometry.
Purpose of the Study:
- To compare the diagnostic rate of small for dates fetuses using ultrasound measurement of fetal abdominal circumference versus clinical examination.
- To evaluate the impact of ultrasound screening on perinatal mortality and morbidity in SGA infants.
Main Methods:
- Retrospective comparison of diagnostic rates between ultrasound and clinical examination for SGA fetuses.
- Analysis of perinatal mortality and morbidity data for SGA infants in screened versus non-screened groups.
Main Results:
- Ultrasound measurement of fetal abdominal circumference significantly increased the diagnosis rate of small for dates fetuses compared to clinical examination.
- No significant difference in perinatal mortality and morbidity was observed between screened and non-screened SGA infants.
Conclusions:
- While ultrasound improves SGA fetus detection, it did not translate to improved perinatal outcomes in this study.
- Further research is needed to optimize screening protocols and improve clinical management of SGA infants.
Abstract:
Screening for the small for dates fetus using ultrasound measurement of the fetal abdominal circumference resulted in a significantly increased rate of diagnosis compared with clinical examination. However, when the perinatal mortality and morbidity amongst infants with a birthweight less than the 10th percentile for gestation in the screened group was compared with that of similar infants in a nonscreened groups who attended the same antenatal clinic but who either booked or were referred late, there was no significant difference.