A 52-year-old man develops postoperative supraventricular tachycardia to a rate of 180/min. and hypotension. The following is/are true:
belongs to book: ASIR SURGICAL MCQs BANK|Dr. Gharama Al-Shehri|1st edition| Chapter number:12| Question number:147
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c. Atrial overdrive pacing should be tried for paroxysmal atrial tachycardia (PAT)
d. Verapamil IV should be used for rate control
A tachyarrhythmia over 150 beats/min can produce hypotension and myocardial ischemia and demands urgent therapy. Vagal maneuvers may break PAT but are not usually effective for atrial flutter or fibrillation. Atrial overdrive pacing should be attempted for PAT or atrial flutter. Verapamil is the most effective approach to rate control for supraventricular arrhythmias, but cardioversion of patients on digoxin should be undertaken cautiously since they are prone to ventricular tachycardia.
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