Trilogy of Fallot

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Trilogy of Fallot
ICD-9 746.09
MeSH D014286

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Priyamavada Singh, MBBS[[2]]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [[3]]


The Trilogy of Fallot is a congenital heart condition consisting of the following:

The first two of these are also found in the Tetralogy of Fallot. However, Tetralogy of Fallot is associated with a ventricular septal defect instead of an atrial septal defect, and it also involves an overriding aorta.

Historical Perspective

It is named for Etienne Fallot.[1]