Abstract 4034: Left Ventricular Geometric Pattern in Morbidly Obese Patients Before and After Bariatric Surgery
Introduction. Obesity is considered as an epidemic disease, and it is a major healthcare concern. From a cardiovascular standpoint, obesity induces adaptative changes in the heart, including hypertrophy, enlargement and, eventually, heart failure. Bariatric surgery has showed to offer good results to achieve the warranted weight loss morbidly obese patients.
Objective: to assess the left ventricular geometric pattern in morbidly obese patients before and after bariatric surgery.
Methods: patients accepted for bariatric surgery were prospectively included. Transthoracic echocardiography was performed in every case before surgery, and repeated for follow- up 6 months and 1 year after the procedure.
Results: 47 patients were included. The mean age was 40.4 (10.6) years, and there were 40 women. Follow-up reached 1 year in 24 cases so far. The mean body mass index (BMI) changed from 46.8 Kg/m2 before surgery, to 33.9 after 6 months and 30.78 after 1 year, p<0.001. The parameters of the left ventricular pattern are depicted in the table⇓. The mean ventricular mass (g/m2.7) decreased by 18.4%, p=0.02. Before surgery, 19 patients had eccentric remodelling, which improved in 52.6% of them (p=0.09). In 31.5% of cases a total regression to normal was observed. Relative parietal thickness (RPT) was augmented in 31.9% of cases before surgery, and only in 4.1% 1 year later, p=0.01.
Conclusions. Regarding left ventricular geometric pattern in morbidly obese patients undergoing bariatric surgery,
Ventricular remodeling exists in 80.8 % before the procedure
The left ventricular geometric pattern returns to normal in 31.5% of cases 1 year after surgery
Ventricular mass decreases by 18.4% and the relative parietal thickness gets back to normal in 95.8% of cases.