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[Ultrasonographically normal fetal heart]
1Service du Pr M Gamerre et Unité de Foeto-Pathologie, Service d'Anatomo-Pathologie et de Neuro-Pathologie, Hôpital de la Timone, rue Saint-Charles, 13005 Marseille. yfredou@club-internet.fr
Insights
Routine fetal heart screening via ultrasound is crucial for detecting congenital heart defects. Early diagnosis of fetal cardiac abnormalities aids in genetic testing and planning for complex conditions.
Area of Science:
- Cardiology
- Prenatal Diagnosis
- Medical Imaging
Background:
- Systematic examination of the fetal heart is essential in routine ultrasonography.
- Accurate detection of fetal cardiac abnormalities requires thorough knowledge of fetal heart development and anatomy.
- Understanding cardiac development is key to identifying potential issues during pregnancy.
Purpose of the Study:
- To emphasize the importance of a systematic approach to fetal heart examination.
- To highlight key views and planes for assessing fetal heart anatomy and function.
- To underscore the link between fetal cardiac defects and genetic abnormalities.
Main Methods:
- Utilizing four-chamber views to assess the inflow tract of the fetal heart.
- Performing static and dynamic studies of great arteries in axial and sagittal planes for outflow tract evaluation.
- Conducting a complete morphologic study to identify all cardiac abnormalities.
Main Results:
- Specific defects like atrioventricular septal defects (ASD) are strong indicators of Down's syndrome.
- Cono-truncal anomalies are significant markers for chromosomal abnormalities.
- Certain conditions such as complete transposition and total anomalous venous connection carry high prognosis risks without prenatal diagnosis.
Conclusions:
- All identified fetal cardiac abnormalities warrant fetal karyotyping.
- Conditions like complete transposition and total anomalous venous connection require specialized attention due to prognosis.
- Complex congenital heart disease necessitates prompt cardiopediatric evaluation for management and prognosis.
Abstract:
The fetal heart must be systematically checked in routine ultrasonographic examination to detect any cardiac abnormality. The quality of the examination requires good knowledge of development and anatomy of the fetal heart. A complete examination will study inflow and outflow tracts: inflow tract on the four-chamber view, outflow tract by a static and dynamic study of the great arteries (on section in fetal axial and saggital planes). All cardiac abnormalities indicate the need for a fetal karyotype after a complete morphologic study. Atrioventricular septal defect (ASD) for Down's syndrome and malaligment septal defect of cono-truncal pathology are both excellent signs of chromosome abnormality. Special attention must be paid to cardiac abnormalities without a prenatal diagnosis due to the prognosis risk: complete transposition and total abomalous venous connection. These cardiac abnormalities, as well as complex isolated congenital heart disease, require a cardiopediatric evaluation to determine prognosis and management strategy.