Termination and Inhibition of Recurrent Tachycardias by Implanted Pervenous Pacemakers
Why the study?
Do implanted pervenous demand pacemakers terminate and prevent recurrent tachycardias in patients refractory to medical therapy?
Population
3 patients with recurrent paroxysmal tachycardia refractory to antiarrhythmic drugs, with tachycardia rates…
Design
Case_series
Follow-up
2 to 7 months
Authors
Discussion
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Member takes
Implication
May support pacemakers for refractory SVT/VT in select cases; leaves open need for prospective trials before broader adoption.
Key Points
- The aim is to assess the effectiveness of implanted pervenous pacemakers in terminating recurrent tachyarrhythmias in patients refractory to conventional treatments.
- Three patients with recurrent tachycardia received implanted pervenous demand pacemakers.
- Electrophysiologic mechanisms were explored to justify pacemaker therapy for SVT and VT.
- Follow-up durations ranged from five to seven months with event monitoring.
- Patient one terminated nine SVT episodes, and pacing at 72 bpm was effective (event rate not specified).
- Patient two prevented SVT recurrences at 88 bpm for seven months (event rate not specified).
- Patient three terminated three VT episodes and inhibited recurrence at 86 bpm over five months (event rate not specified).
Structured PICO
Do implanted pervenous demand pacemakers terminate and prevent recurrent tachycardias in patients refractory to medical therapy?
P
Population
3 patients with recurrent paroxysmal tachycardia (SVT or VT) refractory to antiarrhythmic drugs, with tachycardia rates <160 beats per minute.
I
Intervention
Implanted pervenous demand pacemakers (coronary sinus atrial or ventricular) used for competitive pacing (via external magnet) or overdrive pacing.
O
Outcome
Termination and prevention of recurrent tachycardias
Implanted pervenous pacemakers can effectively terminate and prevent recurrent, drug-refractory supraventricular and ventricular tachycardias.
Cite This Study
Moss et al. (1974) studied this question.