Brugada Criteria: Sensitivity and Specificity
Introduction:
None written. Excerpt from the entry in Ventricular Tachycardia:
Note: Replication study found sensitivity = 80-90% and specificity = 40-70%, depending on observer. This study did include patients on antiarrhythmics, while Brugada's did not. Absence of RS in all precordial leads? Yes ->VT
No-> RS int (start R - nadir S) > 100ms in one precordial lead? Yes ->VT
No-> AV dissociation? Yes ->VT
No-> Morphology criteria (if RBBB: V1 has monophasic R OR QR OR RS; V6 R<S OR QS OR QR OR monophasic R; or if LBBB: V1 or V2 has R>30ms OR RS > 60ms OR notched S; V6 QR or QS)? Yes ->VT; No ->SVT
Note: Replication study found sensitivity = 80-90% and specificity = 40-70%, depending on observer. This study did include patients on antiarrhythmics, while Brugada's did not.
Brugada Criteria - Flowchart as follows:
Associated Diagnoses:
98.7% sensitive, 96.5% specific