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[Re-entry tachycardias: a fragment problem during physiologic heart stimulation]
Schweizerische Medizinische Wochenschrift
|November 12, 1983
Summary
Reentry tachycardias (RT) are a common complication following atrial synchronous pacemaker implantation. These arrhythmias were detected in nearly a third of patients, sometimes requiring pacemaker reprogramming.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Context:
- Atrial synchronous pacemakers (VDD, DDD) are frequently implanted for bradyarrhythmias.
- Understanding potential complications is crucial for patient management.
- Reentry tachycardias (RT) are a known but not fully characterized risk.
Purpose:
- To prospectively investigate the incidence and characteristics of reentry tachycardias (RT) in patients with atrial synchronous pacemakers.
- To assess the clinical significance and management of RT in this population.
Summary:
- A prospective study identified reentry tachycardias (RT) in 9 out of 30 patients (30%) following VDD or DDD pacemaker implantation.
- RTs were detected through clinical controls and 24-hour Holter monitoring.
- Symptoms included palpitations, dizziness, and ischemic heart pain; 6 patients experienced symptoms.
- RTs were triggered by premature ventricular beats, sinus bradycardia, or magnet application.
- Pacemaker reprogramming was necessary in 5 patients, with 3 requiring conversion to VVI pacing.
- The study concludes that RTs are a frequent complication after atrial synchronous pacemaker implantation.
Impact:
- This study highlights the significant incidence of RT as a complication of atrial synchronous pacemakers.
- Findings suggest the need for vigilant monitoring and potential adjustments in pacemaker programming.
- Results inform clinical practice regarding the diagnosis and management of pacemaker-related arrhythmias.