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- W2401472419 abstract "Background . There are little comparative data on catheter ablation of paroxysmal atrial fibrillation (AF) using the contact force radiofrequency (CF-RF) catheter versus the second-generation cryoballoon (CB2). Methods and results . This is a single center, retrospective, nonrandomized study of 98 patients with symptomatic, drug-refractory paroxysmal AF who underwent their first PVI ablation using either the CB2 (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mn fontstyle=italic>40</mml:mn></mml:math>) or CF-RF (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mn fontstyle=italic>58</mml:mn></mml:math>). The mean age was 60 years with 63% men, a mean LA size of 42 mm. The procedure duration (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mn fontstyle=italic>74</mml:mn><mml:mo>±</mml:mo><mml:mn fontstyle=italic>17</mml:mn></mml:math>versus<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M4><mml:mn fontstyle=italic>120</mml:mn><mml:mo>±</mml:mo><mml:mn fontstyle=italic>49</mml:mn></mml:math>minutes<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M5><mml:mi>p</mml:mi><mml:mo><</mml:mo><mml:mn fontstyle=italic>0.05</mml:mn></mml:math>) was shorter for CB2 group; the fluoroscopy time (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M6><mml:mn fontstyle=italic>14</mml:mn><mml:mo>±</mml:mo><mml:mn fontstyle=italic>17</mml:mn></mml:math>versus<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M7><mml:mn fontstyle=italic>16</mml:mn><mml:mo>±</mml:mo><mml:mn fontstyle=italic>5</mml:mn></mml:math>minutes,<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M8><mml:mi>p</mml:mi><mml:mo>=</mml:mo><mml:mn fontstyle=italic>0.45</mml:mn></mml:math>) was similar. Complete PVI was achieved in 96% of patients with RF-CF and 98% with CB2. Phrenic nerve palsies (2 transient and 1 persistent) occurred exclusively in the CB2 group and 1 severe, nonlethal complication (pericardial tamponade) occurred in the CF-RF group. At 24-month follow-up, the success rate, defined as freedom from AF/atrial tachycardia (AT) after a single procedure without antiarrhythmic drug, was comparable in CF-RF group and CB2 group (65.5% versus 67%, resp., log rank<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M9><mml:mi>p</mml:mi><mml:mo>=</mml:mo><mml:mn fontstyle=italic>0.54</mml:mn></mml:math>). Conclusion . Both the CB2 and the RF-CF ablation appeared safe; the success rate at 2 years was comparable between both technologies." @default.
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- W2401472419 date "2016-01-01" @default.
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- W2401472419 title "Two-Year Follow-Up after Contact Force Sensing Radiofrequency Catheter and Second-Generation Cryoballoon Ablation for Paroxysmal Atrial Fibrillation: A Comparative Single Centre Study" @default.
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- W2401472419 doi "https://doi.org/10.1155/2016/6495753" @default.
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