Patients who are contraindicated for radiofrequency ablation include those who cannot tolerate or for whom radiofrequency X-rays may damage the fetus.
Radiofrequency ablation is a clear contraindication for women in early and late stages of pregnancy because X-ray irradiation may be harmful to the fetus, but there are no obvious contraindications beyond that. However, for patients with systemic diseases, physical exhaustion, severe cardiac insufficiency, etc., who cannot tolerate prolonged surgery or large arterial or venous lesions that prevent catheter operation, radiofrequency ablation is not suitable.
For patients with no obvious clinical manifestations or infrequent episodes of arrhythmia, or patients who can be terminated by stimulation of the vagus nerve or medication, it is generally believed that radiofrequency ablation is not necessary, especially for children and the elderly should be more cautious.
Radiofrequency ablation should not be performed in patients whose electrocardiogram suggests the presence of an atrioventricular bypass, or whose electrophysiologic examination reveals the phenomenon of double pathways in the atrioventricular junction area, but who do not have a history of clinically relevant episodes of tachyarrhythmia.
The specific situation varies from person to person, and the suitability of radiofrequency ablation can be determined by consulting a specialized physician’s opinion.