EJIMA KOICHIRO
   Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine
   Position   Associate Professor (Fixed Term)
Article types Original article
Language English
Peer review Peer reviewed
Title Usefulness of Preprocedural Left Ventricular End-Systolic Volume Index and Early Diastolic Mitral Annular Velocity in Predicting Improvement in Left Ventricular Ejection Fraction Following Atrial Fibrillation Ablation in Patients With Impaired Left Ventricular Systolic Function.
Journal Formal name:The American journal of cardiology
Abbreviation:Am J Cardiol
ISSN code:00029149/18791913
Domestic / ForeginForegin
Publisher Elsevier Inc.
Volume, Issue, Page 125(5),759-766頁
Author and coauthor YAZAKI Kyoichiro†, EJIMA Koichiro*, KANAI Miwa, KATAOKA Shohei, HIGUCHI Satoshi, YAGISHITA Daigo, SHODA Morio, HAGIWARA Nobuhisa
Publication date 2020/03
Summary Catheter ablation of atrial fibrillation (AF) is known to facilitate reverse remodeling of the left ventricle. However, factors that can improve the left ventricular (LV) systolic function remain elusive. In this study, we investigated factors related to LV ejection fraction (LVEF) improvement following AF ablation in patients with systolic dysfunction. A total of 140 patients with impaired LVEF (<50%) who underwent AF ablation were retrospectively evaluated. The primary outcome was LVEF improvement. A total of 68, 9, and 15 patients achieved LVEF improvement at 3, 6, and 12 months after AF ablation, respectively. Five patients achieved late LVEF improvement. The overall LVEF improvement rate was 69%. In the receiver operating characteristic curve analysis, the LV end-systolic volume (LVESVI) and early diastolic mitral annular velocity (e') had larger areas under the curve (0.79 and 0.75, respectively) than other echocardiographic parameters, and the most optimal cutoff values of LVESVI and e' were 49.8 ml/m2 and 5.4 cm/s, respectively. Moreover, preprocedural LVESVI ≤49.8 ml/m2 and e' ≥5.4 independently predicted the outcome after adjusting for confounders (hazard ratio 1.74; 95% confidence interval 1.06 to 2.95; p = 0.03; hazard ratio, 1.99; 95% confidence interval 1.13 to 3.64; p = 0.01). LVEF improvement was achieved in 69% of patients who underwent AF ablation, including 4% with late improvement. Lower LVESVI and higher e' could independently predict LVEF improvement.
DOI 10.1016/j.amjcard.2019.11.031
PMID 31889522