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High sensitivity C-reactive protein: a predictor for recurrence of atrial fibrillation after successful cardioversion

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Abstract

Atrial fibrillation (AF) is often associated, more or less indirectly, with an inflammatory acute or chronic process. So it is probable that the inflammation could contribute to the genesis and the perpetuation of this dysrhythmia. Phlogistic test indexes in patients (pts) with AF will be positive and have prognostic significance in patients treated with electrical cardioversion with restoration of a sinus rhythm. We evaluated 106 pts affected by AF of recent onset without known cardiovascular disease. We measured the plasma concentration of C-reactive protein (CRP) through a high sensibility method, in addition to routine blood samples. We perfomed an ECG 1 week and a Holter ECG monitoring 1 and 6 months after the electrical cardioversion. The CRP values were high (5.8 ± 10.7 U/L), with values above the normal range in 60 pts. After electrical cardioversion, we obtained restoration of sinus rhythm in all the patients. One week after cardioversion, 85 pts (80%) were in sinus rhythm, while after 6 months 60 pts (56%) maintained a sinus rhythm. In total 46 (43%) patients had a recurrence of atrial fibrillation within 6 months, and 41 of these 46 patients (89%) had elevated values of CRP (P < 0.001 with respect to the patients who maintained a sinus rhythm). 18/21 patients (86%) with an AF relapse in the first week and 23/25 patients (92%) with AF recurrences at 6 months later had elevated values of CRP. The patients with AF may have elevated values of CRP, and the assessment of this increase may be predictive of early relapses of AF after electrical cardioversion.

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Conflict of interest statement

The authors declare that they have no conflict of interest related tot the publication of this manuscript.

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Authors and Affiliations

  1. Institute of Cardiology, University of Brescia, Pzzle Spedali civili 1, 25124, Brescia, Italy

    Enrico Vizzardi, Savina Nodari, Gregoriana Zanini, Alessandra Manerba, Silvia Frattini, Alberto Madureri, Riccardo Raddino & Livio Dei Cas

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  1. Enrico Vizzardi
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  2. Savina Nodari
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  3. Gregoriana Zanini
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  4. Alessandra Manerba
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  5. Silvia Frattini
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  6. Alberto Madureri
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  7. Riccardo Raddino
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  8. Livio Dei Cas
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Correspondence to Enrico Vizzardi.

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Vizzardi, E., Nodari, S., Zanini, G. et al. High sensitivity C-reactive protein: a predictor for recurrence of atrial fibrillation after successful cardioversion. Intern Emerg Med 4, 309–313 (2009). https://doi.org/10.1007/s11739-009-0235-6

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  • DOI: https://doi.org/10.1007/s11739-009-0235-6

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