Cardiac pacing system with vagus nerve stimulation function and capable of treating atrial fibrillation

Abstract

A cardiac pacing system with vagus nerve stimulation function and capable of treating atrial fibrillation comprises a dual-chamber pacemaker pulse generator, an atrial electrode, a ventricular electrode and a vagus nerve stimulation (VNS) electrode. A P wave generated by ventricular excitation is perceived by the atrial electrode, and a QRS wave generated by the ventricular excitation is perceivedby the ventricular electrode; when the atrial electrode perceives the occurrence of atrial fibrillation, the dual-chamber pacemaker pulse generator is triggered to emit an electric pulse; vagus nerves are continuously stimulated according to the preset stimulation intensity; VNS is automatically stopped when the atrial electrode perceives the termination of atrial fibrillation; if the activationof the heart itself is not perceived within the specified time after the QRS wave, the dual-chamber pacemaker pulse generator can trigger the atrial stimulation pulse; if no QRS wave exists in the specified atrial interval (A-V interval) after atrial stimulation, the dual-chamber pacemaker pulse generator can trigger the ventricular stimulation pulse. The system can make a backup during the vagusnerve stimulation for supporting pacing, and is safe and practical.

Description

technical field [0001] The invention relates to the technical field of cardiac pacing, in particular to a cardiac pacing system capable of treating atrial fibrillation with a vagus nerve stimulating function. Background technique [0002] In recent years, the prevalence and incidence of atrial fibrillation (AF) have been on the rise, and it has become a chronic non-infectious cardiovascular epidemic that seriously threatens human health. In atrial fibrillation, the effective diastolic and systolic function of the atrium is lost, which increases the risk of cerebral embolism, heart failure, disability, and sudden death. Huge consumption of medical and health resources. [0003] At present, the research progress of drug therapy to maintain sinus rhythm is slow. Drug therapy is often required to control or choose atrioventricular node ablation to control ventricular rate, and drug therapy has limited effect on cardioverting and maintaining sinus rhythm, while radiofrequency ab...

AI Technical Summary

Problems solved by technology

In atrial fibrillation, the effective diastolic and systolic function of the atrium is lost, which increases the risk of cerebral embolism, heart failure, disability, and sudden death. Huge consumption of medical and health resources

[0003] At present, the research progress of drug therapy to maintain sinus rhythm is slow. Drug therapy is often required to control or choose atrioventricular node ablation to control ventricular rate, and drug therapy has limited effect on cardioverting and maintaining sinus rhythm, while radiofrequency ablation improves atrioventricular In order to control the ventricular rate, a cardiac pacemaker needs to be implanted, which increases the cost of treatment. In addition, even if the patient’s heart rate is under control, it is still necessary to add antithrombotic and anticoagulant drugs to prevent and treat thromboembolism. Coagulation treatment and compliance rate are low, and death and disability rates are high

Catheter radiofrequency pulmonary vein isolation or balloon cryoablation are current frontier non-drug treatments, which have achieved significant clinical effects in the clinical treatment of paroxysmal atrial fibrillation. recurrence rate; although the surgical maze operation has a high success rate, there are defects such as high risk of complications, complicated technique and high long-term recurrence rate

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