Introduction:

Bariatric surgery is the best method for obesity control and its comorbidities, unfortunately there are few studies in the Mexican population.

Objective:

To evaluate the effect at 12 months of bariatric surgery in the control of obesity and its associated comorbid diseases.

Material and methods:

A prospective cohort study was conducted in patients of the Hospital Civil of Guadalajara Fray Antonio Alcalde in which 124 morbidly obese patients underwent gastric bypass and 36 underwent sleeve gastrectomy were included. They were evaluated before surgery and at 3, 6 and 12 months postoperative. The following variables were assessed: weight, body mass index, glycemia, liver and kidney function, dyslipidemia, blood pressure, frequency of cases of sleep apnea and osteo-articular alterations.

Results:

The initial average weight in patients with gastric bypass was 46.7 ± 8 kg/m2 and decreased to 28.8 ± 8 kg/m2 12 months after surgery and in the sleeve gastrectomy from 128.57 kg/m2 to 89.20 kg/m2. 45 patients undergoing BPGYR had type 2 diabetes, and at 12 months only one persisted. In the group of sleeve gastrectomy initially nine were diabetic and in the end none. At 12 months after surgery, improvement in liver and kidney function was observed, dyslipidemias, arterial hypertension, sleep apnea and osteoarticular alterations in both groups decreased.

Conclusions:

Our study points to, that bariatric surgery is a short term, effective treatment for morbid obesity and its associated diseases in the Mexican population.