What are the indications for cardiac catheterization in the workup of tetralogy of Fallot (TOF)?

Updated: Nov 13, 2018
  • Author: Shabir Bhimji, MD, PhD; Chief Editor: Yasmine S Ali, MD, FACC, FACP, MSCI  more...
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Cardiac catheterization is useful in any of the following settings:

  • When the anatomy cannot be completely defined by echocardiography

  • When disease in the pulmonary arteries is a concern

  • When pulmonary vascular hypertension is possible

Cardiac catheterization allows the following:

  • Assessment of the pulmonary annulus size and pulmonary arteries

  • Assessment of the severity of RVOTO

  • Location of the position and size of the VSD

  • Ruling out possible coronary artery anomalies

See Workup for more detail. See also the Guidelines section for the 2018 American Heart Association/American College of Cardiology (AHA/ACC) recommendations for the management of adults with tetralogy of Fallot.

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