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What are the recognized 12-lead ECG criteria for the differential diagnosis of broad QRS complex tachycardia?
What are the recognized 12-lead ECG criteria for the differential diagnosis of broad QRS complex tachycardia?
This review summarizes the recognized 12-lead ECG criteria for differentiating broad QRS complex tachycardias, which remains a significant diagnostic challenge.
Offers consolidated ECG criteria reference for wide QRS tachycardia; leaves open prospective validation of diagnostic performance.
Broad QRS complex tachycardia still presents a diagnostic challenge when confronted with a 12-lead electrocardiogram (ECG). The ECG differential diagnosis includes ventricular tachycardia vs. supraventricular tachycardia with functional aberration, pre-existing bundle branch block, intraventricular conduction disturbances, or pre-excitation. Despite all available criteria, broad complex tachycardias are still misdiagnosed or remain undiagnosed. This paper will briefly review the most recognized criteria.
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Alzand et al. (2010) studied this question.
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