Tetralogy of Fallot Differential Diagnoses

Updated: Sep 27, 2016
  • Author: Shabir Bhimji, MD, PhD; Chief Editor: Yasmine Subhi Ali, MD, FACC, FACP, MSCI  more...
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DDx

Diagnostic Considerations

Wide variation in the basic anatomic morphology, pathophysiology, clinical signs and symptoms, and surgical methods of therapy is noted for tetralogy of Fallot (TOF). Pathophysiology primarily depends on the severity of the right ventricular (RV) outflow tract (RVOT) obstruction. RVOT obstruction determines the severity of right-to-left shunting, which is typical.

Other conditions to consider when evaluating a patient with suspected Tetralogy of Fallot with pulmonary stenosis include acute anemia, asthma and reactive airway disease, bacteremia and sepsis, cardiogenic shock, Ebstein malformation of the tricuspid valve, pseudotruncus arteriosus, pulmonary atresia, septic shock, and ventricular septal defect (VSD).

Differential Diagnoses