Wide complex tachycardia risk factors

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Differentiating VT from SVT with aberrant conduction

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Risk factors for the ventricular tachycardia as a cause of wide complex tachycardia include a history of prior myocardial infarction, a history of congestive heart failure, and a history of recent angina pectoris. These three historical features have positive predictive values for VT of > 95% in a small study, but sensitivities of 66%, 24%, and 24%, respectively.[1] Wide complex tachycardia will be due to VT in 98% of cases if there's a history of structural heart disease. Only 7% of patients with SVT with aberrancy will have had a prior myocardial infarction (MI).

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Risk Factors For VT

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Risk Factors for SVT


References

  1. Baerman JM, Morady F, DiCarlo LA, de Buitleir M (1987). "Differentiation of ventricular tachycardia from supraventricular tachycardia with aberration: value of the clinical history". Annals of Emergency Medicine. 16 (1): 40–3. PMID 3800075. Retrieved 2013-08-04. Unknown parameter |month= ignored (help)



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