Question:
Automatic Implantable Cardioverter Defibrillator (AICD) implantation is done for which of the following conditions?
Automatic Implantable Cardioverter Defibrillator (AICD) implantation is done for which of the following conditions?
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Think about which rhythms or substrates carry a high risk of sudden cardiac death.
Updated On: Jun 24, 2026
- Brugada syndrome
- Ventricular fibrillation
- Acute coronary syndrome with low ejection fraction
- All of the above
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The Correct Option is D
Solution and Explanation
Step 1: An AICD is a small electronic device implanted in the chest that continuously monitors the heart rhythm and delivers a shock or pacing to terminate life-threatening arrhythmias. It is the most effective protection against sudden cardiac death.
Step 2: Brugada syndrome is an inherited channelopathy that predisposes to polymorphic ventricular tachycardia and sudden death, so it is a recognised indication for an AICD.
Step 3: Ventricular fibrillation is a chaotic, lethal rhythm; survivors of VF arrest receive an AICD for secondary prevention.
Step 4: Acute coronary syndrome with a low ejection fraction (severely reduced left ventricular function) carries a high arrhythmic risk and is an indication for primary-prevention AICD. Since all three conditions qualify, the correct answer is option (d), All of the above.
Step 2: Brugada syndrome is an inherited channelopathy that predisposes to polymorphic ventricular tachycardia and sudden death, so it is a recognised indication for an AICD.
Step 3: Ventricular fibrillation is a chaotic, lethal rhythm; survivors of VF arrest receive an AICD for secondary prevention.
Step 4: Acute coronary syndrome with a low ejection fraction (severely reduced left ventricular function) carries a high arrhythmic risk and is an indication for primary-prevention AICD. Since all three conditions qualify, the correct answer is option (d), All of the above.
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