Related Experiment Video
Updated: Aug 17, 2026
Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
Published on: March 10, 2020
Analysis of deformations in 26,810 consecutive infants with congenital defects
M L Martínez-Frías1, E Bermejo, J L Frías
1ECEMC and Department of Pharmacology, Universidad Complutense, Madrid, Spain. luisama@eucmos.sim.ucm.es
Insights
This study analyzed infant congenital deformations, finding a prevalence of 0.07%. Three deformation sequences were identified based on amniotic fluid volume, skin characteristics, and etiology, impacting prognosis.
Area of Science:
- Pediatrics
- Medical Genetics
- Developmental Biology
Background:
- Congenital deformations are a significant concern in infant health.
- Understanding the etiology and classification of these deformations is crucial for prognosis.
Purpose of the Study:
- To analyze the prevalence and types of deformations in a large cohort of infants.
- To classify deformation sequences based on clinical and etiological factors.
- To determine the prognostic implications of different deformation types.
Main Methods:
- Analysis of 26,810 consecutive infants with congenital defects.
- Classification of deformations based on amniotic fluid volume, skin characteristics, and presence of other anomalies.
- Statistical analysis of prevalence and etiological factors.
Main Results:
- A prevalence of 3.88% for deformations was observed in infants with congenital defects, equating to 0.07% of live-born infants.
- Three distinct deformation sequences were identified: hypokinesia sequence (intrinsic), oligohydramnios-related (intrinsic/extrinsic), and compression-related (extrinsic).
- Extrinsic deformations were often isolated with better prognosis, while intrinsic deformations were associated with other anomalies and poorer prognosis.
Conclusions:
- Infant deformations can be categorized into three main sequences based on etiological and clinical features.
- The origin of deformation (intrinsic vs. extrinsic) significantly influences associated anomalies and overall prognosis.
- This classification aids in understanding the spectrum of congenital deformations and guiding clinical management.
Abstract:
Here we present the analysis of deformations observed in a series of 26,810 consecutive infants with congenital defects. We observed that 3.88% of these infants had deformations, for a prevalence figure of 0.07% live-born infants. From the present study we can conclude that there are three different types of deformation sequences: one with polyhydramnios, thin skin without dermal ridges, hypotonia, and multiple deformations (hypokinesia sequence), which is most often due to intrinsic problems; another with oligohydramnios, redundant thick skin, and multiple deformations, which can be produced by intrinsic or extrinsic factors; and the third, with normal amniotic fluid volume, which is due to compression of different causes. Deformations of extrinsic cause are more frequently isolated defects and have a better prognosis, while deformations of intrinsic origin are more frequently associated with other congenital anomalies and, generally, have a poor prognosis.
