Key result
S-ICD triggers an inappropriate shock during abdominal crunches in a 38-year-old patient.
Why the study?
Inappropriate shocks remain a clinical issue for patients with subcutaneous implantable cardioverter-defibrillators, with T wave oversensing as a common cause.
Case Report (n=1)
Physical exercise such as crunches may trigger inappropriate shocks in patients with subcutaneous implantable cardioverter-defibrillators.
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.
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Paskudzka et al. (2020) conducted a case report in Inappropriate shock from subcutaneous implantable cardioverter-defibrillator (n=1). Physical exercise (crunches) was evaluated on Inappropriate shock. A 38-year-old patient with a subcutaneous implantable cardioverter-defibrillator experienced an inappropriate shock during physical exercise (crunches).
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