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Published on: June 29, 2013
Intrauterine growth restriction and congenital malformations: a retrospective epidemiological study
Giuseppe Puccio1, Mario Giuffré, Maria Piccione
1Dipartimento di Scienze per la Promozione della Salute e Materno Infantile, Università degli Studi di Palermo, Palermo, Italy. gipuccio@gmail.com
Insights
Small for gestational age (SGA) birth is not a reliable indicator of congenital malformations. However, a low ponderal index (PI) in newborns may signal a higher risk of malformations, suggesting its utility in neonatal screening.
Area of Science:
- Neonatal Medicine
- Pediatric Endocrinology
- Clinical Genetics
Background:
- Intrauterine growth restriction (IUGR) and small for gestational age (SGA) are potential indicators of congenital malformations.
- Previous studies suggested a link between birth weight deviations and malformations.
- The role of auxological parameters, like ponderal index (PI), requires further investigation.
Purpose of the Study:
- To evaluate the relationship between SGA birth and malformations in newborns.
- To assess the association of epidemiological factors (maternal smoking, pregnancy diseases) with SGA and malformations.
- To determine the predictive value of ponderal index (PI) for malformations.
Main Methods:
- Analysis of birth data from 1093 infants categorized as SGA, appropriate for gestational age (AGA), or large for gestational age (LGA).
- Prevalence of malformations assessed against birth weight percentile, SGA status, maternal smoking, pregnancy diseases, and PI.
- PI analyzed as a continuous and categorical variable (cutoff < 2.4).
Main Results:
- No significant association found between SGA birth and the prevalence of malformations.
- Maternal smoking and pregnancy diseases were strongly linked to SGA but not to increased malformation rates.
- A significant relationship was observed between a low ponderal index (PI < 2.4) and a higher prevalence of malformations.
Conclusions:
- The association between congenital malformations and birth weight for gestational age is weak.
- Ponderal index (PI) shows potential as a more effective predictor of malformation risk in neonates compared to weight percentile.
- PI may serve as a valuable tool in neonatal screening for congenital anomalies.
Background:
Intrauterine growth restriction (IUGR) and small for gestational age (SGA) birth have been considered possible indicators of the presence of malformations. The aim of this study is to evaluate such relationships in a population of newborns, along with other epidemiological and auxological parameters, in particular the ponderal index (PI).
Methods:
We analyzed the birth data of 1093 infants, classified according to weight for gestational age as SGA, appropriate for gestational age (AGA) or large for gestational age (LGA). The prevalence of malformations was analyzed in relation to weight percentile at birth and SGA birth, maternal smoking, pregnancy diseases and PI.
Results:
Our analysis showed no significant relationship between the prevalence of malformations and SGA birth. Maternal smoking and pregnancy diseases were strongly related to SGA birth, but not to a higher prevalence of malformations. PI, however, had a significant relationship with a higher prevalence of malformations, if analyzed as either a continuous variable or a categorical variable (cutoff: < 2.4).
Conclusions:
The association between congenital malformations and birth weight for gestational age seems to be weak. As part of diagnostic screening for malformations in the neonatal period, PI could be considered a better predictor of risk than weight percentile.
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