Fitness, body weight loss and inappropriate shocks of
subcutaneous-implantable cardioverter-defibrillator -- a case report.
The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a
well-established method for the prevention of sudden cardiac arrest and
an alternative to the transvenous implantable cardioverter-defibrillator
(TV-ICD). It is preferred mainly for young patients with long life
expectancy, high risk of transvenous lead complications or history of
previous endocarditis, or device infections. For both S-ICD and TV-ICD,
inappropriate therapies are possible. For S-ICD, the most common cause
of inappropriate shocks is T wave oversensing (TWOS), while in TV-ICD –
supraventricular tachycardia. We present the case of a 38-year-old
patient who reported a shock during physical exercise - crunches.