RT info:eu-repo/semantics/article T1 Changes in the bone mineral density after sleeve gastrectomy vs. Roux-en-Y gastric bypass 2 years after surgery A1 Castro Alija, María José A1 Jiménez Pérez, José María A1 López Vallecillo, María A1 Cao Torija, María José A1 González Ramírez, Gilberto A1 Bolaños Muñoz, María de Lourdes A1 Ruiz-Tovar Polo, Jaime K1 Sleeve gastrectomy K1 Gastrectomy K1 Gastrectomía K1 Gastroenterology K1 Surgery K1 Digestive organs - Surgery K1 Aparato digestivo - Cirugía K1 Roux-en-Y gastric bypass K1 Gastric band K1 Abdominal surgery K1 Bones - Diseases K1 Huesos - Enfermedades K1 Mineral metabolism K1 Minerales - Metabolismo, trastornos del K1 Osteoporosis K1 3205.03 Gastroenterología K1 3213 Cirugía K1 3213.01 Cirugía Abdominal AB The aim of this study was to compare the analytical and densitometric changes 2 years after Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG). A retrospective study of a prospectively collected database was performed. Morbidly obese patients undergoing RYGB or SG, as primary bariatric procedures, were included. Weight loss; analytical levels of parathormone (PTH), vitamin D, and calcium; and densitometric parameters were investigated. In total, 650 patients were included in the study, and 523 patients (80.5%) underwent RYGB and 127 (19.5%) SG. There were no significant differences in excess weight loss at 24 months between both groups. When comparing preoperative and postoperative values, a significantly greater increase in PTH values was observed in the RYGB group, whereas there were no significant differences in calcium and vitamin D levels. The mean t-score values decreased after surgery at all the locations and in both groups. The reduction in the t-score was significantly greater in the RYGB group at the femoral trochanter and lumbar spine. A decrease in bone mineral density (BMD) was observed after both techniques. The mean BMD decrease was significantly greater in the femoral trochanter and lumbar spine after RYGB. PB MDPI SN 2072-6643 YR 2022 FD 2022 LK https://uvadoc.uva.es/handle/10324/61988 UL https://uvadoc.uva.es/handle/10324/61988 LA eng NO Nutrients, 2022, Vol. 14, Nº. 15, 3056 NO Producción Científica DS UVaDOC RD 07-ago-2024