PMC5775447_01
Surface electrocardiogram: observe the spontaneous marked ST-segment elevation in lead V1 in this patient.
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PMC5775447_01_gr1.jpg
fig1
Considering the considerable burden of complications in this still young patient, and despite a type I ST-segment elevation on the surface ECG (Figure 1), an EMBLEM S-ICD (model A209, Boston Scientific, SW 3.0.479) was implanted in September 2015.
A: Inappropriately sensed but correctly discarded T waves (black dots) with SMART Pass off. B: In the same patient, T waves are no longer sensed with SMART Pass on and with the same sensing vector (secondary configuration). S = ventricular sensing.
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PMC5775447_01_gr2.jpg
fig2
Switching SMART Pass on clearly resulted in a reduction in discarded T waves, which are no longer sensed when the algorithm is active (Figure 2).