Would you consider overdrive pacing for recurrent torsades des pointes in a patient without an obvious drug causing QTc prolongation or significant electrolyte abnormality?
Answer from: at Community Practice
Overdrive pacing is a guideline-recommended treatment for recurrent torsade de pointes in the setting of prolonged QT interval, particularly for patients with bradycardia exacerbating the QT prolongation. Isoproterenol infusion is another option to treat these patients. In these patients, the overdr...
I agree with most of Dr. @Mason's commentary with the following addition:
The mechanism of torsade de pointes (TdP) in Long QT syndrome is early after-depolarization (EAD) mediated triggered activity, which typically occurs during underlying slow heart rates. The goal of overdrive pacing is to over...