Morphofunctional Evaluation of the Heart of Obese Patients Before and After Bariatric Surgery
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Antonio Carlos Valezi & Vitor Hugo Soares Machado
- چاپ و سال / کشور: 2011
Description
Background This study aims to evaluate the effect of weight loss on the physical capacity and the structure and function of the heart after bariatric surgery. Methods Forty-three adult obese patients, 31 women (72.1%) and 12 men (27.9%), were submitted to electrocardiogram, ergometric test, and echo Doppler cardiogram at presurgical stage and 1 year after Roux-en-Y gastric bypass. The statistical analysis utilized the Wilcoxon, Student’s t, and Shapiro–Wilk tests with 5% significance level. Results Weight was reduced from 116.5±21.5 to 80± 15.9 kg and body mass index from 41.8±4.4 to 28.4± 3.8 kg/m2. Cardiac frequency was reduced from 77.9±9.6 to 70.9±7.8 bpm, systolic pressure from 130±20 to 120± 10 mmHg, and diastolic pressure from 80±10 to 80± 0 mmHg. Ergometric tests showed distance covered from 378.9±126.5 to 595±140.4 m, metabolic coefficient from 6.7±2.4 to 8.3±2.6 ml O2/kg/min, and oxygen consumption (VO2) from 23.1±8.4 to 30±10.3 metabolic equivalents of task. The echo Doppler cardiogram showed interventricular septum from 12±2 to 10±1 mm, posterior wall from 11±2 to 10±1 mm, and ventricular mass from 273±85 to 216±60 g. There was improvement in the diastolic function with an increase in the E′/A′ and E/A relationship and the ejection fraction with an increase from 70.2±7.2% to 72.9±6.4%. Conclusions Bariatric surgery improved physical capacity as well as structural and functional improvement of the heart.
OBES SURG DOI 10.1007/s11695-011-0431-0
