Dextrocardia classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

Although there is no established system in classifying dextrocardia, it may be categorized according to its relationship with some congenital cardiac anomalies including situs inversus, situs solitus, and situs ambiguous.

Classification

There is no established system for the classification of dextrocardia but it may be categorized with some of the congenital cardiac anomalies that may be seen in association with it:

References

Dextrocardia Types	Description
Dextrocardia with situs solitus	Dextrocardia with normally related great arteries and D-transposition (complete transposition) or L-transposition (congenitally corrected transposition) of the great arteries. Some examples include dextrocardia with D-loop ventricles and normally related great arteries, with L-loop ventricles and L-TGA (congenitally corrected TGA). Embryologic failure of the final leftward shift of the ventricles during development results in dextrocardia with situs solitus, D-loop ventricles, and normally related great arteries.
Dextrocardia with situs inversus	May present with dextrocardia with inversely related great arteries and D-transposition (congenitally corrected transposition) or L-transposition (“uncorrected” transposition) of the great arteries. An example is dextrocardia with D-loop ventricles and D-TGA (congenitally corrected TGA).
Dextrocardia with situs ambiguous (either polyspenia or asplenia)	Dextrocardia with any of the above relationships between the ventricles and great vessels.