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Long-term results of permanent atrioventricular sequential demand pacing
Pacing and Clinical Electrophysiology : PACE
|March 1, 1979
Summary
Atrioventricular sequential demand pacemakers effectively manage bradyarrhythmias and tachyarrhythmias in 18 patients. This pacing technique offers significant symptom relief, with 94% of patients remaining asymptomatic post-implantation.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Sick sinus syndrome and tachyarrhythmia often necessitate pacemaker implantation.
- Atrioventricular sequential demand pacing (AVSDP) offers a potential solution for complex cardiac rhythm disorders.
Purpose of the Study:
- To evaluate the efficacy and safety of pervenous AVSDP in patients with various bradyarrhythmias and tachyarrhythmias.
Main Methods:
- AVSDP was implanted in 18 patients using atrial and ventricular electrodes.
- Indications included sick sinus syndrome, tachycardia-bradycardia syndrome, supraventricular tachycardia, cardiomyopathy, and carotid sinus syncope.
Main Results:
- 94% of patients (17/18) were asymptomatic during a mean follow-up of 19.4 months.
- Pacing effectively controlled tachyarrhythmias in patients with these conditions, with or without antiarrhythmic drugs.
- One atrial electrode displacement and three pacer extrusions were reported.
Conclusions:
- Pervenous AV sequential pacing is an effective technique for managing sick sinus syndrome, tachyarrhythmias, and poor myocardial function.
- Further research is recommended to improve pacemaker battery longevity and reduce device size.