Background: There is a paucity of information about the long term effects of gastric bypass for morbid obesity. Aim: To study the evolution of weight and complications of obesity, seven to 10 years after gastric bypass surgery. Material and Methods: One hundred eighteen subjects with morbid obesity, aged 15 to 66 years (103 women), were followed for a mean of 94 months after surgery. Body weight, fasting blood glucose, total cholesterol, triglycerides and hemoglobin were measured before surgery and during follow up. Results: At 24 months of follow up, all patients lost weight and there was a mild weight increase at 94 months, that paralleled the preoperative body mass index. Diabetes, hypercholesterolemia and hypertriglyceridemia subsided in 95, 87 and 94% of cases, respectively. Twenty percent of patients had mild anemia and 11% moderate or severe anemia. No patient recovered the preoperative weight. Conclusions: Weight reducing effects of gastric bypass are maintained after 94 months of follow up with the expected health benefits.
Attila Csendes, J., Karin Papapietro, V., Ana María Burgos, L., Enrique Lanzarini, S., & Moira Canobra, L. (2011). Efecto del bypass gástrico a largo plazo (7 a 10 años) en pacientes con obesidad severa y mórbida sobre el peso corporal, diabetes, dislipidemia y desarrollo de anemia. Revista Medica de Chile, 139(11), 1414–1420. https://doi.org/10.4067/S0034-98872011001100004