Clinical implications of left atrial size adjustment: Impact of obesity

Effects of weight loss after bariatric surgery on atrial electromechanical delay in obese subjects

Background: The authors investigated the relationship between weight loss after sleeve gastrectomy and change in atrial electromechanical delay values. Methods: A total of 41 patients were included. The primary end point was any effect of total weight loss on atrial electromechanical delay parameters. Results: The mean loss of body weight was 25.50 ± 11.07 kg. There was a significant correlation between mean body weight change and change in interatrial and left intra-atrial electromechanical delays (Pearson's correlation coefficient: 0.575 and 0.871, respectively; p < 0.001). Only change in body weight was significantly related to change in interatrial electromechanical delay (regression coefficient: 0.707; p < 0.01). Conclusion: In this study, a significant relationship was found between amount of body weight loss and decrease in atrial electromechanical values.