Great job to those who answered our poll questions!
- What do you look at if called about possible NSVT and/or VT? Yes, all of the above. Look at QT duration, electrolytes (K and Mg), medications that prolong QT and low ejection fraction.
- The first image showed polymorphic VT, then post-cardioversion showed a normal QT –> making early ischemia or low EF much more likely – making the situation more dangerous. Please see below:
ECG showing AV dissociation + capture beat + fusion beat
AV Dissociation: P waves appearing independently of the QRS complexes
Fusion beat: an impulse coming from above the atrioventricular node fusing with an impulse generated in the ventricle
Capture beat: reflect an impulse coming from above the atrioventricular node that depolarizes the ventricles when they are no longer refractory but before the next ventricle-generated complex