A considerable portion of patients with AF but without any neurological symptoms had chronic cerebral lesions before PVI. Additional acute lesions could be added after the procedure. Both ablation techniques showed additional cerebral acute lesions with no neurological symptoms after PVI.
PVS stenting with stent sizes >or=10 mm seems to be an adequate therapy modality for treatment of severe acquired PVS. Late in-stent restenosis after PVS stenting can occur. The normalization of the initially disturbed lung perfusion scan is possible and remains stable, even 4 years after PVS stenting.
Sinus rhythm can be maintained in a substantial proportion of patients with PAF even 5 years after circumferential PVI using CB ablation. The rate of decline in freedom from AFLAT was highest within the first 12 months after the index procedure. The patients with enlarged left atrium and/or impaired renal function have lower outcome.
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