Tetralogy of Fallot

1. The first is a ventricular[?] septal defect (VSD), a hole between the two bottom chambers (ventricles) of the heart.
2. The second is Pulmonary stenosis[?], a narrowing at or just below the pulmonary valve[?].
3. The third is the aorta is positioned over the ventricular septal defect instead of in the left ventricle.
4. Fourth, the right ventricle is more muscular than normal.

External links

• Information (http://www.med.umich.edu/1libr/chheart/care04.htm) by University of Michigan Health System
• Diagram of the condition (http://www-medlib.med.utah.edu/WebPath/CVHTML/CV102)