Clinical study on the safety and efficacy of FireMagic™ Magbot Ablation Catheter for rapid arrhythmia
1) Patients aged 18 to 80 years old, with no gender restrictions; 2) Patients clinically diagnosed with paroxysmal atrial fibrillation or symptomatic supraventricular tachycardia: i. For patients with paroxysmal atrial fibrillation, atrial fibrillation was recorded by surface electrocardiogram or Holter monitoring (including single-lead electrocardiogram) within one year prior to enrolment; ii. For patients with symptomatic supraventricular tachycardia, PSVT (AVNRT or AVRT) was recorded by electrocardiogram, Holter monitoring, or electrophysiological examination; 3) Patients who have not responded adequately to or are intolerant of at least one antiarrhythmic drug, or who are willing to undergo ablation surgery without prior medication; 4) Patients who fully understand the treatment plan, voluntarily sign the informed consent form, and are willing to undergo the examinations, surgery, and follow-up required by the plan.
1) Left atrial thrombus (not applicable for PSVT); 2) Left atrial anteroposterior diameter ≥55 mm (not applicable for PSVT); 3) Left ventricular ejection fraction (LVEF) ≤40%; 4) Previous history of atrial septal defect repair or atrial myxoma (not applicable for PSVT); 5) Presence of active implantable devices (e.g., pacemaker, ICD, etc.); 6) NYHA functional class III-IV; 7) History of cerebrovascular disease within the past 6 months (including cerebral haemorrhage, stroke, transient ischaemic attack); 8) History of cardiovascular events within the past 3 months (including acute myocardial infarction, coronary artery intervention or bypass surgery, artificial valve replacement or repair, atrial or ventricular incision); 9) Acute or severe systemic infection; 10) Patients with severe liver or kidney disease, malignant tumours, or end-stage diseases, or those whom the investigator believes may interfere with the treatment, evaluation, or compliance of this trial; 11) Patients with a significant tendency to bleed, hypercoagulable states, or severe haematological disorders.
Single group
FireMagic™ Magbot Ablation Catheter
DeviceAll patients signed informed consent forms, enrolled in the trial, underwent surgical treatment for rapid arrhythmia using XX, and were discharged after follow-up data collection. The total duration for each subject is estimated to be approximately 7 days.
Immediate success rate of surgery
1. For patients with supraventricular tachycardia: Following the procedure, the following criteria are used to evaluate whether catheter ablation has achieved the intended surgical objectives:Ⅰ. AVNRT: AVNRT cannot be induced after ablation. If skipped beats or 1-2 atrial echoes are present, induction stimulation must be performed concurrently with an isoproterenol challenge test, and AVNRT still cannot be induced. Ⅱ.AVRT: ① AVRT cannot be induced after ablation; ② ventricular stimulation shows central VA Wenckebach conduction or VA dissociation; ③ atrial stimulation shows central AV Wenckebach conduction. 2. For patients with paroxysmal atrial fibrillation: Observe for 20-30 minutes after initial pulmonary vein isolation and verify successful bidirectional block.
Safety metrics: Calculate the incidence rate of adverse events associated with the use of the study device during the perioperative period.
Calculate the incidence rate of any major adverse events occurring within 7 days after each atrial fibrillation ablation procedure (including initial and repeat procedures) using the study device.
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Shanghai MicroPort EP MedTech Co., Ltd.
Lead sponsor
Ruijin-Hainan Hospital Shanghai Jiao Tong University School Of Medicine
Sponsor institution
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