Introduction: Obesity-related diseases (ORD) are associated with a decrease in the quality of life and life expectancy of patients. The remission of these pathologies after bariatric surgery is not the same in all patients. Objectives: To evaluate the remission of the principal ORD in patients who underwent bariatric surgery. Materials and methods: Retrospective analysis of patients with morbid obesity and ORD (hypertension, diabetes mellitus, dyslipidemia or obstructive sleep apnea and hypoapnea syndrome) who received bariatric surgery between January 2014 and January 2016. Patients had two surgical options: Laparoscopic sleeve gastrectomy (LSG) or laparoscopic Roux-en-Y gastric bypass (LRYGB). Follow-up was performed after 1, 6, and 12 months per the first year after surgery, recording data, such as percentage of excess weight lost (%EWL), percentage of total body weight lost, and partial or total ORD remission. Results: Out of a total of 23 patients, 52% (12) were females and the average age was 44 ± 13 years, 17 (74%) received LSG and 6 (26%) LRYGB. The average initial body mass index was 43 ± 4.3 kg/m², the %EWL at 1, 6, and 12 months was 35.4 ± 15.2, 62.5 ± 17.5, and 79.1 ± 20.2 respectively. Comorbidities remission was found in 95.6% of patients (22), partial resolution in 32%, and complete in 68%. A total of 52.1% of remissions were reported in the first month postsurgery. Conclusion: Bariatric surgery has proved to be the most effective method for reducing and sustaining weight loss in the long-term and comorbidities remission. A decrease of 50% of EWL has a positive impact in terms of discontinuing medications and normalizing the patient's biochemical profile.

Introduction: Obesity-related diseases (ORD) are associated with a decrease in the quality of life and life expectancy of patients. The remission of these pathologies after bariatric surgery is not the same in all patients.