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The significance of the left atrial volume index in cardioversion success and its relationship with recurrence in patients with non-valvular atrial fibrillation subjected to electrical cardioversion: a study on diagnostic accuracy

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Author(s): Barış Akdemir | Refik Emre Altekin | Murathan Küçük | Atakan Yanıkoğlu | Mustafa Serkan Karakaş | Anıl Aktaş | İbrahim Demir | Cengiz Ermiş

Journal: Anadolu Kardiyoloji Dergisi
ISSN 1302-8723

Volume: 13;
Issue: 1;
Start page: 18;
Date: 2013;
Original page

Keywords: Atrial fibrillation | cardioversion | left atrial volume index | regression analysis | diagnostic accuracy | sensitivity | specificity

ABSTRACT
Objective: The aim of this study was to assess the predictive value of the left atrial volume index (LAVI) in electrical cardioversion (ECV) and observe the recurrence rate of atrial fibrillation (AF) after a successful ECV in patients with non-valvular atrial fibrillation. Method: This study was designed as a diagnostic accuracy and prospective cohort study. Eighty patients (mean age 62±12 years; 52.5% female) were enrolled in study. LAVI was measured using the area-length method and the indexed body surface area. Patients in whom the sinus rhythm (SR) was established following the ECV were assessed according to the clinical and electrocardiography (ECG) findings at the first month and grouped as those with continued SR or recurrent AF. The Student’s t, Mann-Whitney U, Fisher’s exact, Chi-square tests, ROC and logistic regression analyses were used for statistical analysis.Results: Subsequent to the ECV, SR was achieved in 62.5% (n=50) of the patients. In those where SR was established, the AP-Lad (4.32±0.62 vs. 4.77±0.4 cm/p=0.002) and LAVI (35.3±11.5 vs. 53.1±10.1 mL/m2/p
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