What is the role of genetic testing in the evaluation of ventricular tachycardia (VT)?

Updated: Dec 05, 2017
  • Author: Steven J Compton, MD, FACC, FACP, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
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Answer

Genetic testing is now feasible for a variety of inherited disorders that may cause long QT syndrome, arrhythmogenic right ventricular dysplasia, or dilated or hypertrophic cardiomyopathy. However, the absence of a defined genomic mutation does not exclude these abnormalities, and interpretation of mutations, especially those resulting in a noncoding alteration is presently difficult. 

The current approach is not exhaustive and is focused on established monogenic germline abnormalities and tracking these abnormalities in a defined family.


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