TY - JOUR
T1 - Radiofrequency ablation of persistent atrial fibrillation
T2 - Diagnosis-to-ablation time, markers of pathways of atrial remodeling, and outcomes
AU - Hussein, Ayman A.
AU - Saliba, Walid I.
AU - Barakat, Amr
AU - Bassiouny, Mohammed
AU - Chamsi-Pasha, Mohammed
AU - Al-Bawardy, Rasha
AU - Hakim, Ali
AU - Tarakji, Khaldoun
AU - Baranowski, Bryan
AU - Cantillon, Daniel
AU - Dresing, Thomas
AU - Tchou, Patrick
AU - Martin, David O.
AU - Varma, Niraj
AU - Bhargava, Mandeep
AU - Callahan, Thomas
AU - Niebauer, Mark
AU - Kanj, Mohamed
AU - Chung, Mina
AU - Natale, Andrea
AU - Lindsay, Bruce D.
AU - Wazni, Oussama M.
N1 - Publisher Copyright:
© 2016 American Heart Association, Inc.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Background-Various ablation strategies of persistent atrial fibrillation (PersAF) have had disappointing outcomes, despite concerted clinical and research efforts, which could reflect progressive atrial fibrillation-related atrial remodeling. Methods and Results-Two-year outcomes were assessed in 1241 consecutive patients undergoing first-time ablation of PersAF (2005-2012). The time intervals between the first diagnosis of PersAF and the ablation procedures were determined. Patients had echocardiograms and measures of B-type natriuretic peptide and C-reactive protein before the procedures. The median diagnosis-to-ablation time was 3 years (25th-75th percentiles 1-6.5). With longer diagnosis-to-ablation time (based on quartiles), there was a significant increase in recurrence rates in addition to an increase in B-type natriuretic peptide levels (P=0.01), C-reactive protein levels (P<0.0001), and left atrial size (P=0.03). The arrhythmia recurrence rates over 2 years were 33.6%, 52.6%, 57.1%, and 54.6% in the first, second, third, and fourth quartiles, respectively (Pcategorical<0.0001). In Cox Proportional Hazard analyses, B-type natriuretic peptide levels, C-reactive protein levels, and left atrial size were associated with arrhythmia recurrence. The diagnosis-to-ablation time had the strongest association with the ablation outcomes which persisted in multivariable Cox analyzes (hazard ratio for recurrence per +1Log diagnosis-to-ablation time 1.27, 95% confidence interval 1.14-1.43; P<0.0001; hazard ratio fourth versus first quartile 2.44, 95% confidence interval 1.68-3.65; Pcategorical<0.0001). Conclusions-In patients with PersAF undergoing ablation, the time interval between the first diagnosis of PersAF and the catheter ablation procedure had a strong association with the ablation outcomes, such as shorter diagnosis-to-ablation times were associated with better outcomes and in direct association with markers of atrial remodeling.
AB - Background-Various ablation strategies of persistent atrial fibrillation (PersAF) have had disappointing outcomes, despite concerted clinical and research efforts, which could reflect progressive atrial fibrillation-related atrial remodeling. Methods and Results-Two-year outcomes were assessed in 1241 consecutive patients undergoing first-time ablation of PersAF (2005-2012). The time intervals between the first diagnosis of PersAF and the ablation procedures were determined. Patients had echocardiograms and measures of B-type natriuretic peptide and C-reactive protein before the procedures. The median diagnosis-to-ablation time was 3 years (25th-75th percentiles 1-6.5). With longer diagnosis-to-ablation time (based on quartiles), there was a significant increase in recurrence rates in addition to an increase in B-type natriuretic peptide levels (P=0.01), C-reactive protein levels (P<0.0001), and left atrial size (P=0.03). The arrhythmia recurrence rates over 2 years were 33.6%, 52.6%, 57.1%, and 54.6% in the first, second, third, and fourth quartiles, respectively (Pcategorical<0.0001). In Cox Proportional Hazard analyses, B-type natriuretic peptide levels, C-reactive protein levels, and left atrial size were associated with arrhythmia recurrence. The diagnosis-to-ablation time had the strongest association with the ablation outcomes which persisted in multivariable Cox analyzes (hazard ratio for recurrence per +1Log diagnosis-to-ablation time 1.27, 95% confidence interval 1.14-1.43; P<0.0001; hazard ratio fourth versus first quartile 2.44, 95% confidence interval 1.68-3.65; Pcategorical<0.0001). Conclusions-In patients with PersAF undergoing ablation, the time interval between the first diagnosis of PersAF and the catheter ablation procedure had a strong association with the ablation outcomes, such as shorter diagnosis-to-ablation times were associated with better outcomes and in direct association with markers of atrial remodeling.
KW - Ablation
KW - Atrial fibrillation
KW - Catheter ablation
KW - Outcome
KW - Outcomes research
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U2 - 10.1161/CIRCEP.115.003669
DO - 10.1161/CIRCEP.115.003669
M3 - Article
C2 - 26763227
AN - SCOPUS:84961325806
SN - 1941-3149
VL - 9
JO - Circulation: Arrhythmia and Electrophysiology
JF - Circulation: Arrhythmia and Electrophysiology
IS - 1
M1 - e003669
ER -