Fig. 2.

Suggested programming of Detection in Medtronic/NayaMed single chamber ICDs, as per Tables 1 and 2 recommendations. Panel A is a “VF Only” setting, panel B is “VF + VT zone”. Note that in these manufactures the cut-off interval belongs to the slower zone, thus VF is ≥300 ms (200 bpm), and VT is set at 350 ms (171 bpm). Detection is 30/40 intervals, Wavelet discrimination up to 260 ms (231 bpm) in the VF zone (light blue shaded area). Onset is set to monitor and stability OFF. Features to avoid T-Wave oversensing and “noise” are active by shipment. A Monitor zone for symptoms evaluation or slow arrhythmias detection is available.