Impact of Obesity on Left Atrial Functions in Normal Hearts

Document Type : Original Article

Author

The Department of Cardiology, Faculty of Medicine, Ain Shams University

Abstract

Abstract Background: Impaired subclinical left atrial (LA) function may contribute to the risk of cardiovascular disease in obesity. Aim of Study: To highlight the effect of obesity on LA strain in patients with a structurally normal heart. Subjects and Methods: This is a prospective case-control study performed in El Demerdash Hospital echocardiography unit. This study included fifty nonobese subjects (BMI <30kg/m2) as controls, and the other 50 obese subjects (BMI >30kg/m2) as cases. Results: On assessing left atrial measurements and func-tions, max and min LA volume by Biplane method by Speckle tracking echocardiography (STE), indexed volumes and LA EF by Biplane method showed no significant difference between the non-obese group and obese group (p>0.05). Moreover, there was no statistically significant difference between the two groups regarding all the LA strain values (p>0.05). Conclusion: Obesity has no effect on the LA reservoir, contractile, or conduct strain by 2D speckle-tracking.

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