Brian Olshansky MD


Introduction Classification of NSVT Prognosis

Pharmacologic Treatment of Patients With NSVT Implantable Cardioverter Defibrillators

(ICDs) in NSVT Patients A Practical Approach to NSVT Specific Conditions Associated With NSVT Conclusion References

Nonsustained ventricular tachycardia (NSVT) refers to three or more consecutive ventricular beats with a rate greater than 100 beats per minute (BPM) that does not: cause hemodynamic collapse, require cardioversion, or last more than 30 s. Although it is not life-threatening, NSVT can cause symptoms requiring suppressive, or curative treatment. NSVT can also carry a high risk of sudden death.

Strategies have been proposed to risk-stratify patients with NSVT, and offer high-risk patients therapy that reduces the risk of sudden cardiac death. However, prophylactic therapy is not well-defined in all patient subgroups. Even "definitive" studies provide incomplete guidance. Cogent data from clinical trials now indicate that substantial risk reduction can be achieved in some patients with proper prophylactic treatment. Although earlier clinical trials have focused on pharmacologic prophylaxis, more recent trials have evaluated the implantable cardioverter defibrillator (ICD). Despite the results of these trials, NSVT remains a common clinical problem that can be difficult to evaluate and treat (1,2).

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