Apelin Plasma Levels Predict Arrhythmia Recurrence in Patients with Persistent Atrial Fibrillation

Author:

Falcone C.1234,Buzzi M.P.12,D'Angelo A.1,Schirinzi S.12,Falcone R.1,Rordorf R.3,Capettini A. C.1,Landolina M.3,Storti C.2,Pelissero G.4

Affiliation:

1. Interdepartmental Center for Research in Molecular Medicine (CIRMC), University of Pavia, Pavia

2. Department of Cardiology, Istituto di Cura Città di Pavia University Hospital, Pavia

3. Department of Cardiology, Fondazione IRCCS San Matteo Hospital, Pavia

4. IRCCS San Donato Hospital, Milano

Abstract

Low levels of the regulatory peptide apelin have been reported in patients with lone atrial fibrillation (AF). We evaluate the potential utility of assessing apelin plasma levels as a predictor of AF recurrence in individuals presenting for electrical cardioversion. Plasma levels of apelin, brain natriuretic peptide (BNP) and high-sensitivity C-reactive protein were measured in 93 patients, with persistent AF before successful external electrical cardioversion. Significantly lower apelin plasma levels were found in patients with AF recurrence as respect to population with persistence of sinus rhythm during a six months follow-up. The hazard increased with duration of AF, left atrial dimension, BNP concentrations. Subjects with apelin levels below the median had a hazard ratio of 3.1 of arrhythmia recurrence with respect to those with high apelin levels (p< 0.05). A significant difference in BNP levels was found between patients with and without AF recurrence during the follow-up. After adjusting for potential confounders, both BNP and apelin retained their statistical significance as independent predictors of arrhythmia recurrence. Patients with both low apelin and elevated BNP had a worse prognosis compared with those with either low apelin or elevated BNP alone. Low plasma apelin levels before external electrical cardioversion are an independent prognostic factor for arrhythmia recurrence in patients with AF treated with antiarrhythmic drugs. Apelin may be of particular value for the identification of high-risk patients in addition to BNP.

Publisher

SAGE Publications

Subject

Pharmacology,Immunology,Immunology and Allergy

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