• Niklas Höglund, Jonas Andersson, Henrik Almroth, Per Tornvall, Anders Englund, Mårten Rosenqvist, Steen M Jensen, and Kurt Boman.
• Heart Centre, Institution of Public Health and Clinical Medicine, Umeå University, S-901 85 Umeå, Sweden. niklas.hoglund@medicin.umu.se
• Int. J. Cardiol. 2013 Sep 1; 167 (5): 2088-91.

BackgroundThe aim of this study was to investigate whether high-sensitivity C-reactive protein (hsCRP) levels prior to cardioversion (CV) predict recurrence of atrial fibrillation (AF) in patients randomized to treatment with either atorvastatin or placebo 30 and 180 days after CV.MethodsThis was a prespecified substudy of 128 patients with persistent AF randomized to treatment with atorvastatin 80 mg/day or placebo, initiated 14 days before CV, and continued 30 days after CV. HsCRP levels were measured at randomization, at the time of CV, and 2 days and 30 days after CV.ResultsIn univariate analysis of those who were in sinus rhythm 2h after CV, hsCRP did not significantly (odds ratio [OR] 1.11, 95% confidence interval [CI] 0.99-1.25) predict recurrence of AF at 30 days. However, after adjusting for treatment with atorvastatin, hsCRP predicted the recurrence of AF (OR 1.14, 95% CI 1.01-1.27). In a multivariate logistic regression analysis with gender, age, body mass index (BMI), smoking, cholesterol, and treatment with atorvastatin as covariates, the association was still significant (OR 1.14, 95% CI 1.01-1.29). Six months after CV, hsCRP at randomization predicted recurrence of AF in both univariate analysis (OR 1.30, 95% CI 1.06-1.60) and in multivariate logistic regression analysis (OR 1.33, 95% CI 1.06-1.67).ConclusionHsCRP was associated with AF recurrence one and six months after successful CV of persistent AF. However, the association at one month was significant only after adjusting for atorvastatin treatment.Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

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