David Lomeli-Reyes, Posgrado de Cirugía General, Hospital Médica Sur, Facultad Mexicana de Medicina, Universidad La Salle, Ciudad de México, México
Gonzalo M. Torres-Villalobos, Departamento de Cirugía General, Hospital Médica Sur; Departamento de Cirugía Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán. Ciudad de México, México
José M. Correa-Rovelo, Departamento de Cirugía General, Hospital Médica Sur, Ciudad de México, México
Alejandro Díaz Girón-Gidi, Departamento de Cirugía General, Hospital Médica Sur, Ciudad de México, México
Amado J. Athié-Athié, Departamento de Cirugía General, Hospital Médica Sur, Ciudad de México, México
Perla X. López-Almanza, Posgrado de Cirugía General, Hospital Médica Sur, Facultad Mexicana de Medicina, Universidad La Salle, Ciudad de México, México
Objective: Compare the weight loss results between long-term procedures up to 5 years, after undergoing MGL and RYGB in Mexican patients with obesity and associated comorbidity. The most common bariatric surgical procedures worldwide are, laparoscopic gastric sleeve (MGL) and laparoscopic Roux-en-Y gastric bypass (RYGB), as a treatment for weight loss and remission of comorbidity associated with obesity; however, they are the long-term weight loss results in the Mexican population are unknown. Method: Retrospective, observational cohort of patients with obesity undergoing MGL or RYGB in a private hospital Medica Sur, in Mexico City, in the period from 2013 to 2021. Instrumental variables analysis and standardized mean differences were used to calculate outcomes up to 5 years at 5 follow-up visits (S1-S5), at 7 days, 2 months, 6 months, 10 months and 2-5 years after surgery, to compare results of the groups. Results: 104 patients were included in two groups: 31 (30.09%) with MG and 73 (70.87%) with RYGB. The last follow-up (S5), the MG group recorded a mean EW 9.61 kg, EW% 12.72% and EWL% 73.50%, and the RYGB group EW 10.1 kg, EW% 14.72% and EWL% 70.41%. Conclusions: No significant difference was found between groups for long-term EW loss (p = 0.082); however, there is a greater decrease in weight loss in RYGB at 6-12 months compared to MGL.
Keywords: Bariatric surgery. Metabolic surgery. Obesity. Sleeve gastrectomy. Roux-en-Y gastric bypass.