A potentially avertable cause of inappropriate shock in a patient with subcutaneous implantable cardioverter defibrillator

The subcutaneous implantable cardioverter-defibrillator should be reserved for niche indications

“… 12 In rare cases, atrial hypertrophy has also led to large p waves being miscounted. 13 Common issues with S-ICD sensing are shown in Figure 1 .

Figure 1 Sensing issues with the subcutaneous implantable cardioverter-defibrillator (S-ICD).

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