Clinical predictors of atrial fibrillation recurrence in the Gruppo Italiano per lo Studio della Sopravvivenza nell'Infarto Miocardico-Atrial Fibrillation (GISSI-AF) trial
Articolo
Data di Pubblicazione:
2010
Citazione:
Clinical predictors of atrial fibrillation recurrence in the Gruppo Italiano per lo Studio della Sopravvivenza nell'Infarto Miocardico-Atrial Fibrillation (GISSI-AF) trial / M. Disertori, F. Lombardi, S. Barlera, R. Latini, A.P. Maggioni, P. Zeni, G. Di Pasquale, F. Cosmi, M.G. Franzosi, GISSI-AF Investigators. - In: AMERICAN HEART JOURNAL. - ISSN 0002-8703. - 159:5(2010), pp. 857-863. [10.1016/j.ahj.2010.02.016]
Abstract:
Background - Atrial fibrillation (AF) is a common arrhythmia that frequently recurs after restoration of sinus rhythm (SR). Identifying risk factors for recurrence may help define the best strategy for secondary prevention. Methods - The GISSI-AF trial enrolled 1,442 patients in SR with at least 2 documented AF episodes in the previous 6 months or after cardioversion in the last 2 weeks. Patients were randomized to valsartan or placebo; all other treatments for AF or underlying heart diseases were allowed. Primary end points were time to first recurrence of AF and proportion of patients with >1 AF episode during 1-year follow-up. We evaluated clinical and electrocardiographic baseline characteristics of all patients to identify independent predictors for AF recurrence using a Cox multivariable model. Results - Risk factors for AF recurrence were a history of 2 or more AF episodes in the previous 6 months, independent of the modality of SR restoration, spontaneous (HR 1.42, 95% CI 1.14-1.77, P = .002), or by cardioversion (HR 1.19, 95% CI 1.01-1.40, P = .038), and a lower heart rate during SR (HR 0.99, 95% CI 0.99-1.00, P = .052). The risk factors were the same for > 1 AF recurrence. Patients treated with amiodarone had a lower risk for both end points (P < .0001 and P = .017), whereas those on diuretics had a greater risk (P = .009 and P = .003). Conclusions - In the GISSI-AF study population, AF history had significant prognostic value independent of the modality of SR restoration. Amiodarone and diuretic treatment affected the rate of AF recurrence.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Disertori, F. Lombardi, S. Barlera, R. Latini, A.P. Maggioni, P. Zeni, G. Di Pasquale, F. Cosmi, M.G. Franzosi, G. AF Investigators
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