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B. Kircher, J. A. Abbott, S. Pau, R. G. Gould, R. B. Himelman, C. B. Higgins, et al., “Left Atrial Volume Determination by Biplane Two-Dimensional Echocardiography: Validation by Cine Computed Tomography,” American Heart Journal, Vol. 121, No. 3, 1991, pp. 864-871. doi:10.1016/0002-8703(91)90200-2

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• TITLE: Predictor Analysis of Mid-Term Left Atrial Reverse Remodeling after Mitral Valve Surgery*

  AUTHORS: Kaoru Matsuura, Kenji Mogi, Manabu Sakurai, Tomonori Kawamura, Yoshiharu Takahara

  KEYWORDS: Atrium; Mitral Valve; Outcomes

  JOURNAL NAME: World Journal of Cardiovascular Surgery, Vol.3 No.2, June 20, 2013

  ABSTRACT: Objective: The aim of this study was to predict mid-term left atrial reverse remodeling after mitral valve surgery. Patients and Methods: Echocardiographic data was obtained preoperatively and at follow-up from 105 patients who underwent mitral valve surgery. Left atrial volume (LAV) was decreased by >30% from baseline in 43 patients (group A), but not in 62 patients (group B). Results: Patients in group A were younger (p = 0.0029). Male was more (p = 0.05) and prosthesis size was bigger in group A (p = 0.005). Only age was a predictor of left atrial reverse remodeling in a logistic regression model (OR = 0.93, 95% CI 0.88 - 0.99; p = 0.03). Late mean trans-mitral pressure gradient was lower in group A than in group B (p = 0.01). There was a weak correlation between the change in left ventricular end-diastolic diameter (LVDd) and LAV (correlation coefficient 0.27, 95% CI 0.07 - 0.45; p = 0.008). Survival and freedom from major adverse cardiac events did not differ between the groups (p = 0.31 and p = 0.87 by log-rank test). Conclusions: Age was the only predictor of left atrial reverse remodeling. There was a weak correlation between changes in LVDd and LAV.