Question:medium
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?
Show Hint
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
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: The question asks where an AICD is appropriate. The unifying theme is a substantial risk of sudden death from ventricular arrhythmia, which is exactly what an AICD guards against by sensing and shocking dangerous rhythms.
Step 2: Reviewing each choice individually shows all of them carry that risk. Brugada syndrome is a genetic sodium-channel disorder linked to fatal ventricular tachyarrhythmias.
Step 3: Ventricular fibrillation is itself the prototype lethal arrhythmia, and any survivor needs device protection for secondary prevention.
Step 4: A failing heart after acute coronary syndrome, reflected by a depleted ejection fraction, is scar-prone and arrhythmogenic, qualifying for primary-prevention implantation. Because no single option can be excluded, the inclusive choice is correct.\[\boxed{\text{All of the above}}\]
Step 2: Reviewing each choice individually shows all of them carry that risk. Brugada syndrome is a genetic sodium-channel disorder linked to fatal ventricular tachyarrhythmias.
Step 3: Ventricular fibrillation is itself the prototype lethal arrhythmia, and any survivor needs device protection for secondary prevention.
Step 4: A failing heart after acute coronary syndrome, reflected by a depleted ejection fraction, is scar-prone and arrhythmogenic, qualifying for primary-prevention implantation. Because no single option can be excluded, the inclusive choice is correct.\[\boxed{\text{All of the above}}\]
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