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

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DOI: 10.4236/wjcs.2013.32009    3,642 Downloads   5,084 Views  

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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

K. Matsuura, K. Mogi, M. Sakurai, T. Kawamura and Y. Takahara, "Predictor Analysis of Mid-Term Left Atrial Reverse Remodeling after Mitral Valve Surgery*," World Journal of Cardiovascular Surgery, Vol. 3 No. 2, 2013, pp. 52-57. doi: 10.4236/wjcs.2013.32009.

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