Tetralogy of Fallot is a congenital cardiac malformation that consists of an interventricular communication also known as a ventricular septal defect obstruction of the right ventricular outflow tract override of the ventricular septum by the aortic root and right ventricular hypertrophy.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Tetralogy of Fallot?
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Advocacy Organizations
Heart of a Giant Foundation
The mission of the HGF is to achieve better health outcomes for heart diseases and related chronic health conditions in our communities and enhance the quality of life through health education, care support, and connection to community resources.
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Clinical Trials
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