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Related Experiment Videos

Double outlet right ventricle in a human embryo.

A C Wenink

    Virchows Archiv. A, Pathological Anatomy and Histology
    |October 3, 1978
    PubMed
    Summary

    This study describes a human embryo with double outlet right ventricle, highlighting how early heart development influences congenital anomalies. Endocardial swellings appear secondary to overall cardiac architecture in forming this condition.

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    Area of Science:

    • Embryology
    • Cardiovascular Science
    • Developmental Biology

    Background:

    • Congenital heart defects, such as double outlet right ventricle (DORV), arise during embryonic development.
    • Understanding early cardiac morphogenesis is crucial for identifying the origins of these anomalies.

    Purpose of the Study:

    • To describe a human embryo exhibiting DORV with a subaortic defect.
    • To analyze the role of endocardial swellings in the development of this specific cardiac anomaly.

    Main Methods:

    • Detailed morphological examination of a 14 mm crown-rump length human embryo.
    • Comparative analysis of embryonic cardiac structures with established patterns of DORV.

    Main Results:

    • The embryonic heart displayed endocardial swelling configurations consistent with mature DORV.
    • This embryonic anatomy differed significantly from normal development but was supported by the myoepicardial mantle's structure.

    Conclusions:

    • Endocardial swellings appear to play a subordinate role in determining the final cardiac anatomy of DORV.
    • The myoepicardial mantle's architecture is a more significant factor in the development of this anomaly.

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