Objective:To explore nursing methods and treatment of complications after catheter ablation guided by Carto mapping in patients with atrial fibrillation.Methods:Eighty-one cases of paroxysmal atrial fibrillation and seventeen cases of persistent atrial fibrillation were observed and nursed intensively after treatment.The mental nursing was conducted before the ablative procedure

and vital signs were obversed during and after the procedure

and the complications were observed and cared intensively.Results:Seventy-one patients(87.65%

71/81) with paroxysmal atrial fibrillation were under sinus rhythm during 16 months follow-up period

ten patients(58.82%

10/17) with persistent atrial fibrillation were also under sinus rhythm during 13 months follow-up period.The rate of atrial fibrillation-free survival between paroxysmal AF and persistent AF had significant difference(P<0.05).Procedural time in patients with sinus rhythm during the ablation was significantly shorter than that in patients with AF rhythm(188±30 vs 243±26 min

P<0.01).Two patients suffered from cardiac tamponade

one patient from subclavical haematoma

one from serious stenosis of pulmonary vein

and one from acute dilatation of stomack.The total incidence rate of complications was 5.1%.All patients with complications were recovered under intensive nursing and treatment.Conclusion:The catheter ablation guided by Carto mapping in patients with paroxysmal and persistent AF is effective and safe and intensive and normalized care is great guarantee for optimal efficiacy.