Nutritional Profile of Patients Before and After Roux-en-Y Gastric Bypass: 3-Year Follow-up

Authors: Blume, Carina1; Boni, Carla2; Casagrande, Daniela3; Rizzolli, Jacqueline4; Padoin, Alexandre5; Mottin, Cláudio5

Source: Obesity Surgery, Volume 22, Number 11, November 2012 , pp. 1676-1685(10)

Publisher: Springer

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Abstract:

Bariatric surgery is considered the most effective treatment for obesity class II and III. However, postoperative side effects may occur, such as nutritional deficiencies resulting from reduced gastric capacity and alterations in nutrient absorption along the gastrointestinal tract.

A total of 170 patients (136 women and 34 men) submitted to Roux-en-Y gastric bypass (RYGB) between 2000 and 2005 were retrospectively assessed. Anthropometric and laboratory data were evaluated and the use of vitamin and mineral supplements, before and 1, 6, 12, 24, and 36 months following surgery, was assessed, as well.

Mean excess weight loss at 24 and 36 months was 81.5 ± 19.2 and 78.5 ± 20.8 %, respectively. Anemia was present in 6.5 % of subjects prior to the surgery and increased to 33.5 % at 36 months. The levels of total cholesterol, low-density lipoprotein cholesterol, triglycerides, and glycemia were reduced, while high-density lipoprotein cholesterol was increased. Albumin and vitamin B12 levels showed no significant differences at the end of the study compared to the preoperative evaluation. Folic acid levels increased significantly during the follow-up. Almost 6 % of the patients had used standard vitamin and mineral supplements in the preoperative period and 72.4, 85.3, 74.7, 77.1, and 72.4 % at 1, 6, 12, 24, and 36 months following RYGB, respectively.

Bariatric surgery is an effective treatment for long-term weight loss. However, nutritional deficiency is one of its side effects and should be properly diagnosed and handled, aimed at improving the patient’s quality of life and preventing severe complications.

Keywords: Bariatric surgery; Morbid obesity; Nutritional deficiencies; Roux-en-Y gastric bypass

Document Type: Research Article

DOI: http://dx.doi.org/10.1007/s11695-012-0696-y

Affiliations: 1: Postgraduation Program in Clinical Nutrition: Cardiovascular Diseases, Diabetes and Obesity, Cardiology Institute of Rio Grande do Sul, Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395, Porto Alegre, Brazil, Email: carinablume@terra.com.br 2: Postgraduation Program in Clinical Nutrition: Cardiovascular Diseases, Diabetes and Obesity, Cardiology Institute of Rio Grande do Sul, Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395, Porto Alegre, Brazil 3: Postgraduation Program in Medical Sciences: Endocrinology and Metabolism, Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil 4: Obesity and Metabolic Syndrome Center of Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul (COM HSL-PUCRS), Av. Ipiranga 6690, conj 309, Porto Alegre, Brazil 5: Obesity and Metabolic Syndrome Center of Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul (COM HSL-PUCRS), Av. Ipiranga 6690, conj 302, Porto Alegre, Brazil

Publication date: November 1, 2012

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