رجل عمره ٥٥ سنة عنده اعتلال عضلة القلب التوسعي، وكسر القذف ٢٥٪ رغم ٣ أشهر من العلاج الكامل. يمشي بدون أعراض شديدة ولم يحدث له إغماء أو خفقان. الطبيب رشحه لجهاز صدمات مزروع. لماذا يرشحه الطبيب؟

A 55-year-old man with dilated cardiomyopathy has an ejection fraction of 25% despite 3 months of optimal therapy. He walks without severe symptoms and has had no syncope or palpitations. The doctor recommends an ICD. Why?

1. Because he is at risk of ventricular arrhythmias causing sudden death
2. Because the device strengthens contraction and raises EF
3. Because the device replaces heart-failure medicines
4. Because the device prevents ventricular clots

Answer: A) Because he is at risk of ventricular arrhythmias causing sudden death. Severely reduced function raises the risk of VT and VF. An ICD detects and treats lethal rhythms as primary prevention; it does not improve pumping or replace drugs.