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Revista Colombiana de Cirugía

Print version ISSN 2011-7582


MEDINA, Rolando; JIMENEZ, Héctor  and  SANCHEZ, Leidy Cristina. Weight loss patterns in patients subjected to bariatric surgery at a tertiary level of care hospital in Neiva, Colombia. rev. colomb. cir. [online]. 2018, vol.33, n.3, pp.257-264. ISSN 2011-7582.


Obesity is defined as the excess of adipose tissue that deteriorates quality of life and is harmful to health. Its treatment is performed in a multidisciplinary way that ensures weight loss. The high worldwide prevalence and incidence in adolescent patients requires therapeutic interventions that are effective and safe. Bariatric surgery, as a set of surgical procedures, guarantees these characteristics, which is why it has become a valid and effective therapeutic option in patients who do not respond to conventional treatments.


To determine the behavior of weight loss in patients undergoing bariatric surgery at the Hernando Moncaleano Perdomo University Hospital in Neiva, Colombia, in the years 2013 to 2016.

Materials and methods.

Observational, cross-sectional, retrospective study including a group of patients managed with bariatric surgery in the years 2013 to 2016 at a third level of care hospital.


There were 86 patients intervened with bariatric surgery, where 74.4% (64) received laparoscopic gastric bypass (LGB) and 25.6 % (22) laparoscopic gastric sleeve (LGS); 80.2 % were women with an average age of 36 years, all belonging to the subsidized Colombian health regime (64%). The most common comorbidities were osteoarticular disease (82%), arterial hypertension(36%) and type 2 diabetes (29%). There were significant differences (p = 0.003) for the initial and final BMI between two groups. It was determined that the group with the best "optimal" result in terms of %EWL (percentage of excess weight loss) equal or greater than 50% per year, was the LGB (p = 0.026). Finally it was determined that the greatest weight loss was achieved in the group of patients undergoing LGB, with a statistically significant difference; however it is necessary to carry out analytic studies that confirm these results


A progressive decrease in weight was evidenced in both groups in the follow-up year; however the LGBgroup achieved better statistically significant results in terms of %EWL per year compared to the LGS group, data that correlates with the global trend in terms of this type of interventions.

Keywords : obesity, morbid; bariatric surgery; gastric bypass; vertical banded gastroplasty; weight loss.

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