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Journal ArticleDOI

Unusual combination of three types of interatrial communications in a child.

18 Nov 2020-Cardiology in The Young (Cambridge University Press (CUP))-Vol. 30, Iss: 12, pp 1933-1934
TL;DR: An unusual combination of three types of interatrial communications – coronary sinus defect, primum defect, and secundum defect – occurring together in a 3-year-old child is presented.
Abstract: An unusual combination of three types of interatrial communications - coronary sinus defect, primum defect, and secundum defect - occurring together in a 3-year-old child is presented.
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TL;DR: The developmental aspects of the partitioning of the primitive atrium into right and left atrial chambers, the anatomical components of the atrial septum, and deficiencies that produce the various types of interatrial communications are reviewed.
Abstract: Deficiencies in the septum separating the two atrial chambers are among the most common of congenital heart malformations. This article reviews the developmental aspects of the partitioning of the primitive atrium into right and left atrial chambers, the anatomical components of the atrial septum, and deficiencies that produce the various types of interatrial communications. Knowledge of the components of the true atrial septum in the developed heart clarifies the morphology of various types of interatrial communications. The oval fossa defect (also termed secundum ASD) is located within the true septum. The patent foramen ovale (PFO) is a tunnel-like passageway between the free edge of the overlapping ovale fossa valve and its muscular rim. Other defects such as superior and inferior sinus venosus defects, coronary sinus defects, and ostium primum defects lie outside the area of the true septum.

58 citations