Skip to Content
Medical Term:

tetralogy of Fallot

Pronunciation: fah-lo


a set of congenital cardiac defects including ventricular septal defect, pulmonic valve stenosis or infundibular stenosis, and dextroposition of the aorta so that it overrides the ventricular septum and receives venous as well as arterial blood. Right ventricular hypertrophy is considered part of the tetralogy although it is reactive to the other defects.

Synonym(s): Fallot tetrad

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.