Why the study?
Existing criteria to differentiate ventricular tachycardia from supraventricular tachycardia are not necessarily effective for providing an exact diagnosis or ruling out conditions in acute settings.
Wide QRS tachycardias in the emergency department are predominantly ventricular tachycardias, especially in patients with structural heart disease.
Standard criteria may not reliably exclude VT acutely; leaves open need for refined algorithms in structural heart disease.
Introduction Studies have shown that 80% of wide QRS tachycardias are ventricular tachycardias (VT). This number rises to 90% if there is underlying structural heart disease.– Criteria for differentiating between VT and supraventricular tachycardia (SVT) exist, and they are important in clinical practice, but not necessarily for the purpose of providing an exact diagnosis in acute settings.– Although the criteria have been validated, they are not as effective at ruling out conditions as one might think. A real-world study showed [...]
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Alencar et al. (2024) studied this question.
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