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[Permanent atrial stimulation (AAI) in the sick sinus syndrome]
A Goicolea de Oro1, R Chicote, M López-Gil
1Servicio de Cardiología, Hospital Central de la Cruz Roja, Madrid.
Revista Espanola De Cardiologia
|January 1, 1990
Summary
AAI pacing using arterial pacemakers is a safe and reliable method for treating sinus node dysfunction (SND). This study found no lead failures or systemic embolisms, indicating good long-term efficacy.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Context:
- Sinus node dysfunction (SND) is a common indication for cardiac pacing.
- Arterial pacing offers a less invasive alternative to traditional venous pacing.
- Long-term outcomes of arterial pacing for SND require further investigation.
Purpose:
- To evaluate the incidence of lead failure, atrioventricular (AV) conduction disturbances, and chronic atrial tachyarrhythmias in patients with SND undergoing arterial pacing.
- To assess the safety and reliability of arterial pacing in this patient population.
Summary:
- Eighteen patients with SND received arterial pacemakers; follow-up averaged 18 months.
- No lead dislodgement occurred. Pacing thresholds decreased in most patients, allowing for reduced voltage output.
- One patient experienced transient pacing issues. No progression to AV block was documented, though one case of asymptomatic Wenckebach block resolved after drug cessation.
- Patients with prior atrial flutter experienced recurrence, while those with prior atrial fibrillation did not.
- No systemic embolisms were observed.
Impact:
- AAI arterial pacing demonstrates reliability and safety for managing SND.
- Findings support AAI arterial pacing as a viable treatment option, potentially reducing complications associated with transvenous leads.
- Further research may explore optimal patient selection and long-term arrhythmia management in conjunction with arterial pacing.