A 68-year-old man suffers sudden cardiac death (SCD) but is resuscitated and brought to the hospital for evaluation and treatment. The following is/are true:
belongs to book: ASIR SURGICAL MCQs BANK|Dr. Gharama Al-Shehri|1st edition| Chapter number:12| Question number:149
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a. The most likely cause of SCD is ventricular arrhythmia
b. There is 30–40% chance of recurrent SCD in one year
Ventricular arrhythmias cause 75% of SCD, while 25% are due to acute MI. There is a 30–40% chance of recurrent SCD in one year. An inducible ventricular tachyarrhythmia carries a poor prognosis with < 50% five year survival from SCD unless it can be abolished. Empiric antiarrhythmic drug therapy does not improve survival. Aneurysmectomy alone is not adequate therapy for arrhythmias associated with aneurysms since the arrhythmia usually originates in adjacent mechanically stressed myocardium.
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