Keywords: DFT, defibrillation threshold; Device interaction; Epicardial pacemaker; ICD; ICD, implantable cardioverter-defibrillator; Limited venous access; MRSA, methicillin-resistant Staphylococcus aureus; Recurrent device infection; S-ICD; S-ICD, subcutaneous ICD; Sensing screening; VF, ventricular fibrillation; bpm, beats per minute.