Electroconvulsive therapy (ECT) in a patient with a dual-chamber sensing, VDDR pacemaker.

Background: Because previous case reports involved old pacemaker models, it is unclear whether electroconvulsive therapy (ECT) may interfere with modern pacemaker function. Intracardiac voltages during ECT have not been measured previously.

Method: We present a 77-year-old man with a dual-chamber sensing VDDR pacemaker who was treated for a major depression with ECT.