Hiperobesidad y obesidad mórbida: estudio comparativo

introduction: bariatric surgery is effective and safe in treating obese patients with bmi > 40, however, higher preoperative weight could increases morbidity and mortality. aim: to describe and compare the perioperative and mid term outcomes between hiperobese and morbidly obese patients submitted to gastric bypass. material and method: a prospective study of hiperobese patients submitted to gastric bypass over the past 10 years. we analyzed clinical characteristics, perioperative morbimortality and resolution of comor-bidities. the results were compared with a group of morbidly obese patients matched by age and sex. results: 146 hiperobese were operated and compared with 165 morbidly obese patients. 66.8% were female and the average age of the total group was 39.9 ± 12.4 years, with no significant differences between groups by sex and age. the average bmi was 53 and 44.4 respectively. 21.5% had diabetes mellitus 2, 39.5% hypertension, 31% dislipidemia and 8.4% osteoarthritis, with no significant differences between groups except for a higher prevalence of dyslipidemia in the morbidly obeses (p = 0.001). 10.4% had surgical complications during the postoperative period, with no differences between both groups (p = 0.24). one year later all patients had a significant decrease in weight, however, hiperobeses showed a more pronounced decrease (p = 0.001). the fasting glucose, cholesterol and triglycerides levels also showed a significant decrease without reaching differences between the groups. conclusions: the gastric bypass is effective in achieving weight loss and resolution of comorbidities in morbidly obese as well as hiperobese patients, with no significant differences in surgical complications and mortality.