Key result
An ECG-based algorithm correctly differentiated focal from macroreentrant atrial tachycardias after circumferential pulmonary vein isolation with a sensitivity of 94% and specificity of 91%.
Why the study?
Can surface ECG characteristics accurately differentiate macroreentrant from focal atrial tachycardias occurring after circumferential pulmonary vein isolation?
Observational (n=87)
Can surface ECG characteristics accurately differentiate macroreentrant from focal atrial tachycardias occurring after circumferential pulmonary vein isolation?
Effect estimate: Sensitivity 94%, Specificity 91%
A surface ECG-based diagnostic algorithm can accurately differentiate focal from macroreentrant atrial tachycardias following circumferential pulmonary vein isolation.
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May assist noninvasive post-PVI AT differentiation; hypothesis-generating and requires prospective validation.
Chang et al. (2011) conducted an observational in Atrial tachycardias after circumferential pulmonary vein isolation (n=87). ECG diagnostic algorithm was evaluated on Differentiation of focal from macroreentrant ATs (Sensitivity 94%, Specificity 91%). An ECG-based algorithm correctly differentiated focal from macroreentrant atrial tachycardias after circumferential pulmonary vein isolation with a sensitivity of 94% and specificity of 91%.
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