| ObjectiveThe aim of this study is to perform the effectiveness,safety and advantage of radiofrequency catheter ablation of right ventricular outflow tract premature ventricular complexes by using magnetic navigation system(MNS)comparing to the traditional method.MethodsA total of 27 patients with PVCs were divided into two groups randomly,13 patients in the group of MNS,14 patients in the group of traditional method.Recording and analyzing the operation success rate,complication rate,recurrence rate(follow up 10±2 months),operation time,mapping time,ablation time,ablation substrate,X-ray exposure time and total skin X-ray exposure dose.ResultsAll of the patients in the group of MNS underwent successful ablation in the first time,no complications and two recurrences.The average operation time of the group of MNS were 106.25±33.45min,mapping time were 17.60±10.72min,ablation time were 12.66±8.88min,ablation substrate were 11.25±5.85,X-ray exposure time were 1.86±2.81min,total skin X-ray exposure dose were 213.69±276.44mGy.In the group of traditional method,the average operation time were 99.44±36.96min,mapping time were 38.54±31.56min,ablation time were 14.551±11.62min,ablation substrate were 11.25±5.85,X-ray exposure time were 3.511±2.68min,total skin X-ray exposure dose were 289.58±296.50mGy.ConclusionMagnetic navigation system was no statistical significance in terms of safety and effectiveness for radiofrequency catheter ablation of PVCs.But it can reduce the mapping time,X-ray exposure time and total skin X-ray exposure dose for both patients and operators. |
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