What can alter the prognosis 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

Data from the Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction Trial suggest that VT or ventricular fibrillation occurring before coronary angiography and revascularization in the setting of ST-segment elevation myocardial infarction has a strong association with increased 3-year rates of death and stent thrombosis. [36]

Appropriate treatment can significantly improve the prognosis in selected patients. Beta-blocker therapy can reduce the risk of sudden cardiac death from VT, and implantable cardioverter-defibrillators can terminate malignant arrhythmias. [37]

The prognosis does not always correlate with left ventricular function. Patients with long QT syndrome, right ventricular dysplasia, or hypertrophic cardiomyopathy may be at increased risk for sudden death despite relatively well preserved left ventricular function. These possibilities should be considered in any patient with a strong family history of premature sudden death.


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