Q:

All of the following statements about nonischemic ventricular tachyarrhythmias are true except:

waelhammad
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2022-12-09
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All of the following statements about nonischemic ventricular tachyarrhythmias are true except:

  1. They usually occur in the right ventricle.
  2. They are usually associated with a left bundle branch block pattern during the tachycardia.
  3. They are usually more refractory to medical therapy than ischemic ventricular tachyarrhythmias.
  4. They usually occur as a result of automaticity rather than re-entry.
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waelhammad
2022-12-09
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D. They usually occur as a result of automaticity rather than re-entry.

DISCUSSION: Nonischemic ventricular tachyarrhythmias usually occur in the right ventricle, and as a result the ECG shows a left bundle branch block–type pattern during ventricular tachycardia. These arrhythmias are notoriously refractory to medical therapy and they occur almost exclusively on a re-entrant basis.

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