Keywords: Heart, Myocardium, obesity; left ventricular function; cardiac magnetic resonanceThis study investigate left ventricular function of obese patients with no known heart disease who underwent laparoscopic sleeve gastrectomy (LSG) by cardiac magnetic resonance (CMR) in their short- and mid-term postoperative follow-up. We found that obese patients who underwent LSG had a significant decrease in body weight, left ventricular mass and left ventricular cavity in the short- and mid- term postoperative. In the mid-term postoperative, the left ventricular subclinical systolic dysfunction of left ventricle significantly improved.
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