Why the study?
Does permanent rapid atrial pacing control ventricular rate in a patient with refractory continuous supraventricular tachycardia?
Does permanent rapid atrial pacing control ventricular rate in a patient with refractory continuous supraventricular tachycardia?
Permanent rapid atrial pacing can be an effective strategy to control ventricular rate in patients with drug- and shock-refractory supraventricular tachycardia.
May be considered in refractory SVT when standard options fail; leaves open long-term safety and generalizability.
A case is reported of a patient who had continuous supraventricular tachycardia with a ventricular rate of about 170. The arrhythmia was refractory to drugs and DC countershock, and did not convert with atrial pacing. Rapid atrial stimulation controlled the ventricular rate by simulating atrial fibrillation (pacing at 300-400/min), or by simulating a faster atrial tachycardia with 2:1 conduction (pacing at 205-210/min). This form of therapy was used on a permanent basis for more than five months.
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Preston et al. (1979) studied this question.
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