Use of gestation adjusted projection method for predicting fetal head circumference.
J Matern Fetal Neonatal Med
; 35(25): 6836-6840, 2022 Dec.
Article
em En
| MEDLINE
| ID: mdl-33985407
ABSTRACT
OBJECTIVES:
The aim of this study is to determine if the gestation adjusted projection (GAP) method applied to a fetal head circumference (FHC) measured on ultrasound between 32 and 36 weeks and 6 days gestation can predict birth head circumference, specifically ≥ 35 cm, which is a known risk factor for Cesarean.METHODS:
This is a retrospective chart review of 60 pregnancies from January to December 2019. Eligible patients delivered a singleton term neonate and received two ultrasounds, one at 32-36 weeks and 6 days gestation (period 1) and a second within 7 days of a term birth (period 2). Fetal head circumference was predicted two ways, by applying (1) the GAP method to the period 1 ultrasound and (2) by direct measurement with a period 2 ultrasound. These estimates were compared to the birth head circumference (HCBIRTH) by measures of error and with paired t-tests. McNemar's test compared the ability to predict head circumference (HC) ≥ 35 cm.RESULTS:
None of the measures of error were significantly different between the GAP and the period 2 ultrasound, including the ability to predict HC ≥ 35 cm. In patients who delivered at ≥ 39 weeks, the period 2 ultrasound performed poorly while the GAP's performance remained good.CONCLUSION:
The GAP method applied to an early third trimester ultrasound predicts HCBIRTH with accuracy similar to an ultrasound performed seven days from delivery and may be superior for deliveries ≥ 39 weeks. The ability to predict HCBIRTH could improve clinical management of affected pregnancies.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ultrassonografia Pré-Natal
/
Cabeça
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Newborn
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Pregnancy
Idioma:
En
Revista:
J Matern Fetal Neonatal Med
Assunto da revista:
OBSTETRICIA
/
PERINATOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Estados Unidos