Hey everyone,
We’re back at it again with a new episode! With the help of special guest Kyle Sears, Kevin and I tackle our most requested topic yet, Wide Complex Tachycardia! Below for your reference are the Brugada and Vereckei criteria that we reference during the episode. Happy listening!
Brugada Criteria
* Is there absence of an R2 complex in all precordial leads (Precordial Concordance)?
* If yes it’s VT
* If no, is the R to S interval >100ms in one precordial lead?
* If yes it’s VT
* If no, is there AV dissociation?
* If yes it’s VT
* Morphology criteria for VT in precordial leads V1-V2 and V6
* RBBB pattern (upright in V1) or…
* LBBB pattern (downward in V1)
* If yes to above it’s VT
* If no to all of the above, likely SVT w/ aberrancy
Vereckei Algorithm
This algorithm looks at lead aVR
* Presence of initial R wave?
* If yes, it’s VT
* Presence of initial R or Q wave >40ms
* If yes it’s VT
* Notch on the descending limb of a negative onset and predominantly negative QRS?
* If yes it’s VT
* Initial to terminal ventricular activation velocity ratio <1
* Basically, VT causes slow ventricular activation then SVT w/ aberrancy, resulting in a more significantly wide QRS
* If this is present it’s VT
* If none of the above are present, likely SVT w/ aberrancy