Evolution of nutritional, hematologic and biochemical changes in obese women during 8 weeks after Roux-en-Y gastric bypasss.

Obesity is a chronic disease of multifactorial origin and currently is a serious public health problem. The treatment of morbid obesity can be effectively done by bariatric surgery. The present study aimed to evaluate the influence of changes in food intake on body composition and some hematologic and biochemical variables in the period of eight weeks after Roux-en-Y gastric bypass (RYGB). The study included 22 women submitted to RYGB. We evaluated anthropometric, nutritional, hematologic and biochemical variables before and 14, 28, 42 and 56 days after surgery. The patients showed a decrease in caloric intake and hence macro- and micronutrients, with significant loss of weight and decrease in body mass index (BMI). Decreases in body weight and BMI were associated with reduced blood levels of total cholesterol, VLDL-C, LDL-C, triglycerides and glucose with time after surgery. The decrease in caloric intake was also associated with decreased intake of protein, iron and calcium, with a decline in hemoglobin, hematocrit and red blood count, and RDW increased after surgery.

Evolution of nutritional, hematologic and biochemical changes in obese women during 8 weeks after Roux-en-Y gastric bypasss / Evolución de los cambios nutricionales, hematológicos y bioquímicos en mujeres obesas durante 8 semanas después de bypass gástrico en Y de Roux

Obesity is a chronic disease of multifactorial origin and currently is a serious public health problem. The treatment of morbid obesity can be effectively done by bariatric surgery. The present study aimed to evaluate the influence of changes in food intake on body composition and some hematologic and biochemical variables in the period of eight weeks after Roux-en-Y gastric bypass (RYGB). The study included 22 women submitted to RYGB. We evaluated anthropometric, nutritional, hematologic and biochemical variables before and 14, 28, 42 and 56 days after surgery. The patients showed a decrease in caloric intake and hence macro- and micronutrients, with significant loss of weight and decrease in body mass index (BMI). Decreases in body weight and BMI were associated with reduced blood levels of total cholesterol, VLDL-C, LDL-C, triglycerides and glucose with time after surgery. The decrease in caloric intake was also associated with decreased intake of protein, iron and calcium, with a decline in hemoglobin, hematocrit and red blood count, and RDW increased after surgery (AU)

La obesidad es una enfermedad crónica de origen multifactorial y actualmente es un problema grave de salud pública. El tratamiento de la obesidad mórbida puede hacerse eficazmente por la cirugía bariátrica. El presente estudio tuvo como objetivo evaluar la influencia de los cambios en la ingesta de alimentos sobre la composición corporal y algunas variables hematológicas y bioquímicas en el plazo de ocho semanas después de bypass gástrico en Y de Roux (BGYR). El estudio incluyó a 22 mujeres sometidas a BGYR. Se evaluaron los parámetros antropométricos, nutricionales, bioquímicos antes de la operación y el 14o, 28o, 42o e 56o día después de la cirugía. Los pacientes mostraron cambios significativos en la ingesta de alimentos, con una disminución en la ingesta de calorías y por lo tanto, los macro y micronutrientes, con una pérdida significativa de peso y disminución del índice de masa corporal (IMC). La disminución en el peso corporal y el IMC se asoció con niveles reducidos de colesterol total, VLDL-C, LDL-C, triglicéridos y glucosa con el tiempo después de la cirugía. La disminución de la ingesta calórica también se asoció con disminución de la ingesta de proteínas, hierro y calcio, con una disminución en la hemoglobina, el hematocrito y el recuento de glóbulos rojos, y RDW aumentado después de la cirugía (AU)