[Nutritional consultations frequency after bariatric surgery]

Estado nutricional e clínico de pacientes submetidos à cirurgia bariátrica

Objetivo: analisar o estado clínico e nutricional de pacientes submetidos à cirurgia bariátrica. Métodos: trata-se de um estudo epidemiológico observacional, com delineamento transversal, norteado pela ferramenta STROBE. Foi realizado entre 2015 e 2016, com dados de pacientes submetidos à cirurgia bariátrica em Y de Roux nos anos de 2012 a 2014, em um hospital privado de Minas Gerais. A coleta de dados ocorreu por meio de questionário semi-estruturado, elaborado pelos pesquisadores. Para verificar a existência da associação entre as variáveis do estado nutricional e clínico com o tempo pós-cirúrgico, utilizou-se o teste Qui-quadrado de Pearson ou Exato de Fisher para as variáveis categóricas e, para as contínuas, os testes Kruskal-Wallis ou Mann-Whitney. Resultados: verificou-se significância estatística para as variáveis: “enfraquecimento de unhas” (p=0,002), “êmese” (p=0,018), “frequência de consumo alcoólico” (p=0,018) e “número de refeições diárias” (p=0,028) no grupo feminino. Conclusão: este estudo evidenciou alterações no componente clínico e nutricional das pacientes submetidos à cirurgia bariátrica. Observou-se associações estatisticamente significativas no grupo feminino, incluindo mudanças no perfil clínico de maior episódio de êmese e maior frequência no consumo de álcool. Em relação ao perfil nutricional, pacientes do sexo feminino apresentaram maiores proporções no número de refeições e maior enfraquecimento nas unhas após o procedimento cirúrgico. Reforça-se a importância do acompanhamento e orientação nutricional e psicológica contínuas, pré e pós cirúrgicas, minimizando os impactos negativos deste resultado na saúde dos indivíduos.

Early postoperative follow-up reduces risk of late severe nutritional complications after Roux-En-Y gastric bypass: a population based study

BACKGROUND

Severe nutritional complications can occur following Roux-en-Y gastric bypass (RYGB). Adherence to follow-up visits can reduce the risk of many bariatric surgery complications, but whether this applies to severe nutritional complications is unknown.

OBJECTIVES

Determine the association between adherence to follow-up visits after RYGB and risk of severe nutritional complications.

SETTING

Multicenter publicly-funded Ontario Bariatric Network.

METHODS

Retrospective cohort study of Ontario adults participating in the Ontario Bariatric Registry who underwent RYGB between January 1, 2009, and December 31, 2015. The primary outcome was a severe nutritional complication (hospital admission with malnutrition or nutrient deficiency) occurring 1 year or more after RYGB. The primary exposure was adherence to postoperative follow-up visits, occurring at 3, 6, and 12 months postoperatively, and categorized as perfect (3 visits), partial (1-2 visits), or none. Cox proportional hazards modeling quantified the association between adherence to follow-up visits and the primary outcome using hazard ratios (HR).

RESULTS

In total, 9105 adults (84% female, age 44.7 ± 10.3 yr) met study criteria. Mean preoperative body mass index (BMI) was 48.6 kg/m². First year follow-up attendance was: 51.7% perfect, 31.6% partial, and 16.7% none. Median time in the study was 3.4 years. Severe nutritional complications occurred in 1.1% of patients. Compared with perfect follow-up, patients with no follow-up (HR 3.09, 95% CI 1.74-5.50) and partial follow-up (HR 1.94, 95% CI 1.25-3.03) had an increased risk of severe nutritional complications.

CONCLUSION

Adherence to follow-up visits during the first year after RYGB is independently associated with reduction in the risk of subsequent severe nutritional complications.

FOOD INTAKE EVALUATION DURING THE FIRST YEAR OF POSTOPERATIVE OF PATIENTS WITH TYPE 2 DIABETES MELLITUS OR GLYCEMIC ALTERATION SUBMITTED TO ROUX-EN-Y GASTRIC BYPASS

BACKGROUND

: Obesity is one of the main causes of glycemic change. Failure of clinical obesity treatment may lead to an increase in bariatric surgery. Dietary guidance, in conjunction with disabsorptive and hormonal factors resulting from the anatomical and physiological changes provoked by the surgery, is associated with changes in food intake.

AIM

To analyze food intake evolution during the first postoperative year of Roux-en-y gastric bypass in patients with type 2 diabetes mellitus or glycemic alteration.

METHODS

: This was a longitudinal and retrospective observational study. For food intake evolution analysis, linear regression models with normal errors were adjusted for each of the nutrients.

RESULTS

At 12 months, all patients presented improvement in glycemic levels (p<0.05). During the first postoperative year, there was a reduction in energy intake, macronutrients, consumption of alcoholic beverages and soft drinks. Conversely, there was an increase in fiber intake and diet fractionation. It was observed that, despite gastric restrictions, the micronutrient intake specifically recommended for glycemic control was greater up to six months postoperatively.

CONCLUSION

There was change in the quantity and quality of food intake. It was the most prevalent glycemic control contributor up to six months postoperatively. At the end of one year, the diet underwent a change, showing a similar tendency to the preoperative food intake pattern.

Predictors of poor follow-up after bariatric surgery

OBJECTIVE

to identify predictive factors of loss of follow-up of patients submitted to Roux-en-Y gastric bypass and sleeve gastrectomy in a 48-month period.

METHODS

we conducted a retrospective, cohort study from January 2010 to December 2012. We analyzed thirteen variables and compared them to loss of follow-up.

RESULTS

among the 559 patients studied, there was a great reduction in the frequency (43.8%) of the consultations from the second postoperative year on, with a significant loss in the 4th year (70.8%). In the univariate analysis, only the variable "excess weight" was associated with loss of follow-up. The proportion of overweight (>49.95kg) was higher in the follow-up group with greater loss (>3 absences) (p=0.025). In the logistic regression, patients exposed to a greater excess weight (>49.95kg) presented a two-fold higher risk for loss of follow-up (>3 absences) (OR=2.04, 95% CI 1.15-3.62; p=0.015). In the univariate analysis, at the 48th postoperative month, only the variable "mesoregion of origin" was associated with loss of follow-up (p=0.012).

CONCLUSION

there was a progressive loss of follow-up from the second postoperative year on. Among the factors analyzed, only the variable "excess weight" greater than 49.95kg in the preoperative period was associated with loss of medical-surgical follow-up. In the 48th month of the postoperative period, there was a higher prevalence of loss of medical-surgical follow-up for patients outside the perimeter of the city of Recife (51%, p=0.052).

CLINICAL AND NUTRITIONAL ASPECTS IN OBESE WOMEN DURING THE FIRST YEAR AFTER ROUX-EN-Y GASTRIC BYPASS

BACKGROUND

Clinic care for morbid obesity is not very effective. Bariatric surgery is being considered the best way of intervention for this kind of obesity.

AIM

Evaluate the clinical and nutritional evolution during the first year of obese women submitted to Roux-en-Y gastric bypass.

METHOD

Retrospective series non-concurrent with 61 women. The variables were weight, BMI, weight loss percentage, loss of excessive weight percentage, waist circumference, hip circumference, lipid profile, daily use of supplements, practice of physical exercise, occurrence of sickness, nausea, constipation, diarrhea, asthenia, alopecia, dry skin, cramps and brittle nails.

RESULTS

They presented significant weight and IMC reduction as well as improvement in their lipid profile, in all consultations. After one year they presented 36,6% loss of the initial weight and 75% loss of excessive weight. The waist circumference also presented a considerable reduction on all the moments, decreasing from 122,1±13,4 cm to 94,1±10,6 cm. Regarding the intercurrences, the most frequent were alopecia, asthenia, dry skin and cramps.

CONCLUSION

The Roux-en-Y gastric bypass was effective in promoting and maintenance weight loss during the period of the first postoperative year.