The goal of this Interventional clinical trials in atrioventricular reentrant tachycardia patients. The main question it aims to answer whether non-invasive vagus nerve stimulation could be effective in restoring rhythm.

Patients will receive non-invasive vagus nerve electrical stimulation under catheter evoked and cardiac monitoring to observe their heart rhythm changes.

Participants will be treated with non-invasive electrical stimulation of the left vagus nerve in the neck. After routine induction of atrioventricular reentrant tachycardia prior to radiofrequency ablation, the electrode patch was placed on the patient's left cervical vagal body surface localization, i.e., between the sternocleidomastoid muscle and the trachea where the left common carotid artery pulsation could be palpated, and resuscitation was performed using non-invasive electrical stimulation.

Inclusion Criteria:

1. The relevant diagnostic criteria in the Guidelines for the Diagnosis and Treatment of Supraventricular Tachycardia (svt) need to be met.
2. All need to be free of psychiatric abnormalities, verbal communication disorders, and have good compliance.
3. The patients and their families gave informed consent and signed the informed consent form.

Exclusion Criteria:

1. Does not meet the relevant diagnostic criteria in the Guidelines for the Diagnosis and Treatment of Supraventricular Tachycardia (svt).
2. Mental anomalies, verbal communication disorders, poor adherence
3. Those who do not consent to participate in this clinical trial