Abstract

    Open Access Research Article Article ID: JCMC-1-103

    Echocardiographic Biatrial Remodelling and Diastolic Function Assessment in Long-Term Follow-Up after Typical Atrial Flutter Ablation

    Pilar Cabanas-Grandío*, Javier García-Seara, Francisco Gude, José Luis Martínez-Sande, Xesús Alberte Fernández-López, Felipe Bisbal, Emad Abu-Assi and José Ramón González-Juanatey

    Background: A reverse left atrial (LA) remodelling after atrial fibrillation (AF) ablation has been reported and a relationship between diastolic function and AF is well known. However, there is little information about atrial remodelling and diastolic function after cavotricuspid isthmus (CTI) ablation. We aimed to evaluate long-term biatrial remodelling and diastolic function in patients undergoing CTI ablation.

    Methods: A transthoracic echocardiography was performed at baseline and at longterm follow-up (6.3 ± 0.5 years) in a total of 39 patients who underwent AFl ablation. Right atrial end diastolic areas (RAEDA) and end systolic areas (RAESA), right atrial contraction fraction (RACF), mitral A wave velocity, E/A rate and LA diameter were measured. They were compared using the Wilcoxon rank sum test.

    Results: Mean (SD) age was 64 (10) years, 82% male, 49% hypertension and 44% prior AF episodes. Basal RAEDA and RAESA were higher than at follow-up: median (IQR) of 24.6 cm² (19.8-28.2) vs. 20.0 cm² (16.0-25.0), p = 0.017 and 17.4 cm² (13.0-19.3) vs. 12.0 cm² (9.8-17.0), p = 0.001, respectively. RACF was higher at follow-up: 0.41 (0.35- 0.45) vs. 0.31 (0.19-0.37), p = 0.001. Basal mitral A wave velocity was lower than at follow-up: 0.51 (0.4-0.6) vs. 0.78 (0.7-0.9), p =0.001 and E/A rate was higher 1.9 (1.2-3.1) vs. 0.9 (0.7-1.1), p = 0.001. LA diameter at baseline was 44.8 mm (39.3-50.7) vs. 46 mm

    (41.5-51.5) at follow-up, p <0.001.

    Conclusion: AFl ablation led to reverse remodelling of the right atrium and improved diastolic dysfunction parameters in the long-term follow-up.

    Keywords: Typical atrial flutter; Ablation; Atrial remodelling; Diastolic function

    Published on: Aug 4, 2014 Pages: 11-16

    Full Text PDF Full Text HTML DOI: 10.17352/2455-2976.000003
    CrossMark Publons Harvard Library HOLLIS Search IT Semantic Scholar Get Citation Base Search Scilit OAI-PMH ResearchGate Academic Microsoft GrowKudos Universite de Paris UW Libraries SJSU King Library SJSU King Library NUS Library McGill DET KGL BIBLiOTEK JCU Discovery Universidad De Lima WorldCat VU on WorldCat

    Indexing/Archiving

    Case Reports

    Pinterest on JCMC