Are you examining an ECG for evidence of the tachycardia-bradycardia syndrome?

Does the ECG show?

• alternating bradycardia and tachycardia?

• episodes of sinus bradycardia or subatrial bradyarrhythmias?

• periodic sinus arrest with asystole may occur, with complete absence of P waves for > 2 seconds?

• absence of escape rhythms during episodes of bradycardia?

• AV block?

• episodes of atrial fibrillation, atrial tachycardia, or atrial flutter?


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