Author + information
- Yuan Hongtao,
- Zhang Yuxiao,
- Lan Kai,
- Peng Li,
- Xue Qiao and
- Lu Caiyi
To investigate the efficacy and safety of mapping and ablating paroxysmal atrial fibrillation (PAF) by using remote magnetic navigation system (MNS, Niobe III, Stereotaxis) vs. manual navigation.
103 consecutive patients diagnosed as PAF from Oct 2014 to Nov 2016 were enrolled in our study, the mean age was 65±13 years and 62±15 years in MNS group (n=53) and manual group (n=50), respectively. Mapping and ablating were performed by MNS or CARTO 3 system. Efficiency, procedure time, fluoroscopic time and complications were collected and analyzed.
There was no significant difference between two groups according to clinic profiles, acute success rate [98%（52／53）vs. 98% (49/50) p > 0.05], and severe complications. MNS group prone to have more total procedure time (180±45 min vs. 135±40 min，p < 0.05) and ablation time (42±7.8 min vs. 35±6.5 min, p < 0.05). MNS group had less fluoroscopic time than manual group（2.5±0.5min vs. 6.2±1.2 min, p < 0.05). Success rate at 3 months’ follow-up was 81% vs. 76%, p > 0.05.
Comparing manual navigation, Niobe III remote magnetic navigation system is effective and safe for mapping and ablation of PAF. Furthermore, it may reduce the fluoroscopic time for both patients and physicians. But higher power and procedure time may be needed.