ABSTRACT
Background: Due to the high failure rate observed in the clinical treatment of morbid obesity an increase in bariatric surgery indications, as an alternative for the control of obesity and comorbidities, is noticeable. Aim: To evaluate the performance of type 2 diabetes mellitus, high blood pressure and dyslipidemia in patients submitted to Roux-en-Y gastric bypass in late follow-up. Methods: Retrospective analysis of 59 patients included in the bariatric surgery program. Anthropometric (height and body weight) and laboratory (LDLc, HDLc, VLDLc, triglyceride -TG - and glucose) data were collected on pre- and postoperative stages, through medical records. Results: Among the patients, 86% were female aged 43±11, of whom 52% had attended high school. The average postoperative time was 7±3 years. During the postoperative period, there were decreases of weight and body mass index, respectively (133±06 kg vs 91±04 kg p<0.05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0.05). In comparison to the preoperative stage, lower concentrations of glucose (101.00±26.99 vs 89,11±15.19, p=0.014), total cholesterol rates (179.00±37,95 vs 167.48±28,50, p=0.016), LDLc (104.30±33.12 vs 91.46±24.58, p=0.016), VLDLc (25.40±11,12 vs 15.68±7.40, p<0.01), and TG (143.35±86.35 vs 82.45±37.39, p<0.01) and higher concentrations of HDLc (43.53±8.23 vs 57.90±15.60, p<0.01) were identified in the postoperative stage. 40% of hypertensive patients were still undergoing high blood pressure treatment during the postoperative stage. There was remission of type 2 diabetes mellitus and dyslipidemia on 81% and 94% of the cases, respectively. Conclusion: Roux-en-Y gastric bypass has proven itself to be an effective long term procedure, promoting weight loss, remission of DM2 and dyslipidemia.
Racional: Em função do alto grau de falência que se observa no tratamento clínico da obesidade mórbida, observa-se um aumento da procura pela cirurgia bariátrica como alternativa para o controle da obesidade e comorbidades. Objetivo: Avaliar a evolução do diabete melito tipo 2, da hipertensão arterial sistêmica e da dislipidemia em pacientes submetidos à gastroplastia redutora em Y-de-Roux no período de pós-operatório tardio. Métodos: Análise retrospectiva de 59 pacientes inseridos em programa de cirurgia bariátrica. Foram coletados dados antropométricos (altura e peso corporal) e laboratoriais (LDLc, HDLc, VLDLc, triglicerídeo -TG - e glicose) nos períodos pré e pós-operatório por meio de prontuários médicos. Resultados: Entre os pacientes, 86% eram mulheres com idade de 43±11 anos e 52% tinham cursado o ensino médio. O tempo médio de pós-operatório foi de 7±3 anos. Houve redução no peso e no índice de massa corporal no pós-operatório, respectivamente (133±06 kg vs 91±04 kg p<0,05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0,05). Observou-se concentrações inferiores no pós-operatório, comparado com o pré-operatório, da glicose (101,00±26,99 vs 89,11±15,19, p=0,014), colesterol total (179,00±37,95 vs 167,48±28,50, p=0,016), LDLc (104,30±33,12 vs 91,46±24,58, p=0,016), VLDLc (25,40±11,12 vs 15,68±7,40, p<0,01), e TG (143,35±86,35 vs 82,45±37,39, p<0,01) e maiores de HDLc (43,53±8,23 vs 57,90±15,60, p<0,01 ). No pós-operatório 40% dos pacientes hipertensos ainda estavam em tratamento para hipertensão arterial sistêmica. Houve remissão do diabete melito tipo 2 e da dislipidemia em 81% e 94% dos casos, respectivamente. Conclusão: A gastroplastia redutora em Y-de-Roux mostrou ser procedimento eficaz em longo prazo, com resultados persistentes na perda de peso, remissão do DM2 e da dislipidemia.
ABSTRACT
INTRODUCTION: Calcium and/or vitamin D deficiency can occur after Roux-en-Y gastric bypass (RYGBP) because of impaired absorption, resulting in secondary hyperparathyroidism and increased risk of reduced bone mineral density (BMD). OBJECTIVE: The objective of this study is to assess nutritional status, body composition, and bone health in women after RYGBP. METHOD: Twenty-five premenopausal women who had undergone RYGBP (test group) and 33 women matched for age and body mass index who had not undergone surgery (control group) participated. Test group received 250 mg of calcium for day. Anthropometric, dietary, laboratory, body composition, and BMD (X-ray absorptiometry) analyses were performed. RESULTS: No differences were found between the groups in waist circumference, fat or lean mass, BMD, or dietary calcium intake, although calcium intake was low in both groups. The test group had better results for complete blood count, total cholesterol, low-density lipoprotein, and triglycerides. The mean parathyroid hormone was higher (p = 0.005) in the test group, although still within normal limits. Plasma levels of 25-hydroxyvitamin D were low in groups but did not differ between them (p = 0.075). Vitamin D concentrations were lower in women with longer time since surgery. The test group had lower intake of energy, protein, lipids, polyunsaturated fatty acids, fiber, phosphorus, and iron than the control group. CONCLUSION: Elevation of parathyroid hormone, low dietary calcium intake, and vitamin D plasma insufficiency without BMD reduction occurred after RYGBP. Patients who underwent RYGBP had adequate lipid profiles but inadequate intake protein, polyunsaturated fatty acids, fiber, and iron. Vitamin D deficiency may occur in the late postoperative period.
Subject(s)
Body Composition , Bone Density , Gastric Bypass/adverse effects , Nutritional Status , Obesity, Morbid/surgery , Adult , Brazil , Calcium/deficiency , Deficiency Diseases/etiology , Female , Hospitals, University , Humans , Hyperparathyroidism, Secondary/etiology , Obesity, Morbid/physiopathology , Vitamin D Deficiency/etiologyABSTRACT
ABSTRACT Background: Due to the high failure rate observed in the clinical treatment of morbid obesity an increase in bariatric surgery indications, as an alternative for the control of obesity and comorbidities, is noticeable. Aim: To evaluate the performance of type 2 diabetes mellitus, high blood pressure and dyslipidemia in patients submitted to Roux-en-Y gastric bypass in late follow-up. Methods: Retrospective analysis of 59 patients included in the bariatric surgery program. Anthropometric (height and body weight) and laboratory (LDLc, HDLc, VLDLc, triglyceride -TG - and glucose) data were collected on pre- and postoperative stages, through medical records. Results: Among the patients, 86% were female aged 43±11, of whom 52% had attended high school. The average postoperative time was 7±3 years. During the postoperative period, there were decreases of weight and body mass index, respectively (133±06 kg vs 91±04 kg p<0.05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0.05). In comparison to the preoperative stage, lower concentrations of glucose (101.00±26.99 vs 89,11±15.19, p=0.014), total cholesterol rates (179.00±37,95 vs 167.48±28,50, p=0.016), LDLc (104.30±33.12 vs 91.46±24.58, p=0.016), VLDLc (25.40±11,12 vs 15.68±7.40, p<0.01), and TG (143.35±86.35 vs 82.45±37.39, p<0.01) and higher concentrations of HDLc (43.53±8.23 vs 57.90±15.60, p<0.01) were identified in the postoperative stage. 40% of hypertensive patients were still undergoing high blood pressure treatment during the postoperative stage. There was remission of type 2 diabetes mellitus and dyslipidemia on 81% and 94% of the cases, respectively. Conclusion: Roux-en-Y gastric bypass has proven itself to be an effective long term procedure, promoting weight loss, remission of DM2 and dyslipidemia.
RESUMO Racional: Em função do alto grau de falência que se observa no tratamento clínico da obesidade mórbida, observa-se um aumento da procura pela cirurgia bariátrica como alternativa para o controle da obesidade e comorbidades. Objetivo: Avaliar a evolução do diabete melito tipo 2, da hipertensão arterial sistêmica e da dislipidemia em pacientes submetidos à gastroplastia redutora em Y-de-Roux no período de pós-operatório tardio. Métodos: Análise retrospectiva de 59 pacientes inseridos em programa de cirurgia bariátrica. Foram coletados dados antropométricos (altura e peso corporal) e laboratoriais (LDLc, HDLc, VLDLc, triglicerídeo -TG - e glicose) nos períodos pré e pós-operatório por meio de prontuários médicos. Resultados: Entre os pacientes, 86% eram mulheres com idade de 43±11 anos e 52% tinham cursado o ensino médio. O tempo médio de pós-operatório foi de 7±3 anos. Houve redução no peso e no índice de massa corporal no pós-operatório, respectivamente (133±06 kg vs 91±04 kg p<0,05 e 49±74 kg/m2 vs 33±79 kg/m2, p<0,05). Observou-se concentrações inferiores no pós-operatório, comparado com o pré-operatório, da glicose (101,00±26,99 vs 89,11±15,19, p=0,014), colesterol total (179,00±37,95 vs 167,48±28,50, p=0,016), LDLc (104,30±33,12 vs 91,46±24,58, p=0,016), VLDLc (25,40±11,12 vs 15,68±7,40, p<0,01), e TG (143,35±86,35 vs 82,45±37,39, p<0,01) e maiores de HDLc (43,53±8,23 vs 57,90±15,60, p<0,01 ). No pós-operatório 40% dos pacientes hipertensos ainda estavam em tratamento para hipertensão arterial sistêmica. Houve remissão do diabete melito tipo 2 e da dislipidemia em 81% e 94% dos casos, respectivamente. Conclusão: A gastroplastia redutora em Y-de-Roux mostrou ser procedimento eficaz em longo prazo, com resultados persistentes na perda de peso, remissão do DM2 e da dislipidemia.
ABSTRACT
BACKGROUND: Obesity is a chronic disease with high growth in population and bariatric surgery is currently considered the most effective treatment for weight reduction; on the other hand, nutritional deficiencies are observed after this procedure. AIM: To analyze weight loss progression and nutritional anemia in patients submitted to Roux-en-Y gastric bypass on use of vitamin and mineral supplementation. METHODS: Retrospective analysis of 137 patients of both sexes, aged between 18-60 years, using supplemental multivitamins and minerals, were included; personal information, anthropometric and laboratory data in the preoperative, 12, 24, 36 and 48 months postoperatively were collected. RESULTS: Postoperatively, in both sexes, occurred weight loss compared to the pre-operative weight gain at 48 months and maintenance of body mass index. There was a decrease in the percentage of excess weight loss at 48 months postoperatively compared to the time of 12, 24 and 36 months in men and decreased at 48 postoperative months compared to the time of 24 months in females. There was a decreased in serum ferritin in both sexes and increased serum iron at 48 months postoperatively in males. There was a decreased in vitamin B12 and folic acid increased serum at 48 postoperative months in females. CONCLUSIONS: Surgical treatment was effective for reducing weight, body mass index reduction and achievement of success in the late postoperative period along with multivitamin and mineral supplementation on prevention of serious nutritional deficiencies and anemia.
Subject(s)
Anemia/drug therapy , Dietary Supplements , Gastric Bypass , Malnutrition/drug therapy , Minerals/therapeutic use , Vitamins/therapeutic use , Weight Loss , Adult , Anemia/etiology , Female , Humans , Male , Malnutrition/complications , Middle Aged , Postoperative Period , Retrospective Studies , Young AdultABSTRACT
BACKGROUND: Obesity is a chronic disease with high growth in population and bariatric surgery is currently considered the most effective treatment for weight reduction; on the other hand, nutritional deficiencies are observed after this procedure. AIM: To analyze weight loss progression and nutritional anemia in patients submitted to Roux-en-Y gastric bypass on use of vitamin and mineral supplementation. METHODS: Retrospective analysis of 137 patients of both sexes, aged between 18-60 years, using supplemental multivitamins and minerals, were included; personal information, anthropometric and laboratory data in the preoperative, 12, 24, 36 and 48 months postoperatively were collected. RESULTS: Postoperatively, in both sexes, occurred weight loss compared to the pre-operative weight gain at 48 months and maintenance of body mass index. There was a decrease in the percentage of excess weight loss at 48 months postoperatively compared to the time of 12, 24 and 36 months in men and decreased at 48 postoperative months compared to the time of 24 months in females. There was a decreased in serum ferritin in both sexes and increased serum iron at 48 months postoperatively in males. There was a decreased in vitamin B12 and folic acid increased serum at 48 postoperative months in females. CONCLUSIONS: Surgical treatment was effective for reducing weight, body mass index reduction and achievement of success in the late postoperative period along with multivitamin and mineral supplementation on prevention of serious nutritional deficiencies and anemia. .
RACIONAL: A obesidade é doença crônica com elevado crescimento na população. A cirurgia bariátrica é considerada o tratamento mais efetivo para redução de peso; por outro lado, deficiências nutricionais são observadas após esse procedimento. OBJETIVO: Avaliar a evolução da perda ponderal e a presença de anemias carenciais em pacientes submetidos ao bypass gástrico em Y-de-Roux em uso de suplementação de vitaminas e minerais. MÉTODOS: Análise retrospectiva de 137 pacientes de ambos os sexos, com idade entre 18-60 anos, em uso de suplementação de polivitaminas e minerais incluindo informações pessoais, dados antropométricos e laboratoriais nos períodos pré-operatório, 12, 24, 36 e 48 meses de pós-operatório. RESULTADOS: No pós-operatório, em ambos os sexos, ocorreu perda de peso em relação ao pré-operatório, ganho de peso aos 48 meses e manutenção do índice de massa corporal. Houve diminuição do percentual de perda de excesso de peso aos 48 meses pós-operatórios comparado com os tempos 12, 24 e 36 meses em homens e diminuição aos 48 meses pós-operatórios em relação aos 24 meses no sexo feminino. Houve diminuição da ferritina sérica em ambos os sexos e aumento do ferro sérico aos 48 meses pós-operatório no sexo masculino. Houve diminuição da vitamina B12 e aumento do ácido fólico séricos aos 48 meses do pós-operatório no sexo feminino. CONCLUSÕES: O tratamento cirúrgico mostrou-se eficaz para redução de peso, redução do índice de massa corporal e alcance do sucesso no pós-operatório tardio juntamente com a suplementação de polivitamínico e minerais na prevenção de deficiências nutricionais importantes e anemias. .
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Depression/complications , Metabolic Syndrome/complications , Cholesterol/blood , Depression/metabolism , Metabolic Syndrome/metabolism , Obesity/physiopathology , Triglycerides/bloodABSTRACT
BACKGROUND: Along with the augmentation in obesity rates in recent years, the demand for bariatric surgery has startlingly increased. Nutritional counseling in the preoperative period is very important because it contributes to higher success rate in the post-operative period. AIM: To assess the nutritional status of patients in a multidisciplinary program for the treatment of severe obesity and pre-operatively for bariatric surgery, characterizing the consumption of healthy nutrients. METHODS: A retrospective analysis of 30 patients was conducted. Personal information, anthropometric data and dietary assessment by 24-hour food record were collected. The analysis of energy intake was performed in Dietpro 5.1 Professional(r) program. The statistical treatment of the caloric intake was performed by an ANOVA test with Bonferroni's post hoc and for anthropometric data the paired t test was used. RESULTS: From the total, 73% of the patients were women and 27% male, mean age was 48.4+12.9 and 49.8+8.1, respectively. A lower weight in the 5th appointment was observed when compared with the 1st one. There was a reduction in caloric intake in the 2nd, 3rd, 4th and 5th appointments when compared with the 1st. It was observed that in the 5th appointment more than 50% of the patients underwent six meals a day. There was an increase in the consumption of fruit along the appointments and 72.2% of patients consumed 1-2 servings of fruit a day. Vegetables intake was high in all appointments in the pre-operative period and, although low, the whole grain products consumption has increased during the pre-operative period achieving 30% of the study population. CONCLUSION: There was a decrease in body weight, a trend in the decrease of the body mass index and waist circumference and quantitative and qualitative improvement of food consumption.
Subject(s)
Bariatric Surgery , Nutritional Status , Obesity, Morbid/diet therapy , Obesity, Morbid/surgery , Combined Modality Therapy , Female , Humans , Male , Middle Aged , Patient Care Team , Preoperative Period , Retrospective Studies , Weight LossABSTRACT
Unactivated MCM-41 mesoporous silica catalyzes the photodecomposition of chloroform to phosgene and hydrogen chloride under near-UV (λ > 360 nm) irradiation. The rate of photodecomposition increases toward an asymptotic limit as the O(2) partial pressure is increased. Deuterochloroform does not decompose under the same experimental conditions. Low concentrations of both cyclohexane and ethanol quench the photodecomposition, whereas water, up to its solubility limit, does not. Dissolved tetraalkylammonium salts suppress photodecomposition. The data are consistent with a mechanism in which light absorption by an SiO(2) defect yields an electron-deficient oxygen atom, which then abstracts hydrogen from chloroform. The resulting CCl(3) radicals react with oxygen to form a peroxy radical that decomposes, eventually yielding phosgene and hydrogen chloride.
Subject(s)
Chloroform/chemistry , Photochemical Processes , Silicon Dioxide/chemistry , Catalysis , Ultraviolet RaysABSTRACT
BACKGROUND: Along with the augmentation in obesity rates in recent years, the demand for bariatric surgery has startlingly increased. Nutritional counseling in the preoperative period is very important because it contributes to higher success rate in the post-operative period. AIM: To assess the nutritional status of patients in a multidisciplinary program for the treatment of severe obesity and pre-operatively for bariatric surgery, characterizing the consumption of healthy nutrients. METHODS: A retrospective analysis of 30 patients was conducted. Personal information, anthropometric data and dietary assessment by 24-hour food record were collected. The analysis of energy intake was performed in Dietpro 5.1 Professional(r) program. The statistical treatment of the caloric intake was performed by an ANOVA test with Bonferroni´s post hoc and for anthropometric data the paired t test was used. RESULTS: From the total, 73% of the patients were women and 27% male, mean age was 48.4+12.9 and 49.8+8.1, respectively. A lower weight in the 5th appointment was observed when compared with the 1st one. There was a reduction in caloric intake in the 2nd, 3rd, 4th and 5th appointments when compared with the 1st. It was observed that in the 5th appointment more than 50% of the patients underwent six meals a day. There was an increase in the consumption of fruit along the appointments and 72.2% of patients consumed 1-2 servings of fruit a day. Vegetables intake was high in all appointments in the pre-operative period and, although low, the whole grain products consumption has increased during the pre-operative period achieving 30% of the study population. CONCLUSION: There was a decrease in body weight, a trend in the decrease of the body mass index and waist circumference and quantitative and qualitative improvement of food consumption. .
RACIONAL: Com o avanço da obesidade nos últimos anos, a procura pela cirurgia bariátrica tem aumentado de forma alarmante. O aconselhamento nutricional no período pré-operatório é de grande importância, pois contribui para maior taxa de sucesso no pós-operatório. OBJETIVO: Avaliar o perfil nutricional dos pacientes inseridos em um programa multidisciplinar para o tratamento da obesidade grave e em pré-operatório de cirurgia bariátrica, caracterizando o consumo de nutrientes saudáveis. MÉTODOS: Foi realizada análise retrospectiva de 30 pacientes sendo coletadas informações pessoais, antropométricas e dietéticas por meio de recordatórios de 24 horas. A análise da ingestão energética foi realizada no programa Dietpro 5.1 Profissional(r). O tratamento estatístico do consumo calórico foi realizado pelo teste ANOVA com post hoc por Bonferroni e para os dados antropométricos foi utilizado o teste t pareado. RESULTADOS: Do total dos pacientes 73% eram mulheres e 27% homens, com idade de 48,4+12,9 e 49,8+8,1, respectivamente. Foi observado menor peso na 5ª consulta quando comparado com a 1ª. Houve diminuição no consumo calórico nas 2ª, 3ª, 4ª e 5ª consultas quando comparadas com a 1ª. Observou-se que na 5ª consulta mais de 50% dos pacientes realizavam seis refeições ao dia. Houve aumento no consumo de frutas ao longo das consultas chegando a 72,2% dos pacientes que consumiam de uma a duas porções de frutas ao dia. A ingestão de verduras e legumes era elevada em todas as consultas no período pré-operatório e o consumo de produtos integrais, apesar de baixo, aumentou ao longo do período pré-operatório, alcançando 30% da população ao final do estudo. CONCLUSÃO: Houve ...
Subject(s)
Female , Humans , Male , Middle Aged , Bariatric Surgery , Nutritional Status , Obesity, Morbid/diet therapy , Obesity, Morbid/surgery , Combined Modality Therapy , Patient Care Team , Preoperative Period , Retrospective Studies , Weight LossABSTRACT
BACKGROUND: Satiety decline is one of the factors that are involved in weight regain in the postoperative period of bariatric surgery. Nutrients such as long-chain n-3 polyunsaturated fatty acid and fibers could assist in food intake control by increasing satiety. Flaxseed is a source of these nutrients, and its consumption could help with possible glycemic control and increased satiety. The aim of this study was to evaluate the influence of whole flaxseed and defatted flaxseed on satiety, postprandial blood glucose, and leptin in post-bariatric women. METHODS: A single-blind crossover and randomized study was performed with 18 women in the late postoperative of Roux-en-Y gastric bypass (RYGBP). All women received three test meals containing whole flaxseed, defatted flaxseed, and placebo with 1 week of washout. Satiety was evaluated by a Visual Analog Scale during the fasting period; immediately after ingestion; and 60, 120, and 180 min after meals. RESULTS: There was no difference between test meals for the variables of hunger, satisfaction, fullness, and desire to eat. The basal and postprandial glucose and leptin levels did not differ between the test meals. The intake of defatted flaxseed and placebo muffins resulted in reduced postprandial blood glucose. Postprandial leptin was higher than the baseline (p = 0.02); however, only defatted flaxseed showed increased postprandial leptin levels (p = 0.044). CONCLUSIONS: Whole flaxseed and defatted flaxseed did not promote satiety in women in the late postoperative of RYGBP. However, the test meals with a lower fat content increased the serum leptin levels.
Subject(s)
Blood Glucose/metabolism , Flax/metabolism , Leptin/blood , Obesity, Morbid/diet therapy , Satiation , Adult , Aged , Body Weight , Brazil/epidemiology , Cross-Over Studies , Diet Records , Eating , Female , Flax/chemistry , Gastric Bypass/methods , Humans , Meals , Middle Aged , Obesity, Morbid/blood , Obesity, Morbid/epidemiology , Obesity, Morbid/surgery , Postoperative Period , Single-Blind Method , Time Factors , Treatment Outcome , Weight LossABSTRACT
Exposure of solutions of tetrabutylammonium chlorochromate in chloroform to UV or blue light causes decomposition of the chloroform and the buildup of HCl and peroxides in solution. The CrO(3)Cl(-) is converted during irradiation to CrO(2)Cl(2), which forms a suspension in the chloroform, and then to CrOCl(4)(-). CrO(2)Cl(2) does not by itself catalyze photodecomposition. The initial rate of HCl formation shows an apparently linear dependence on the incident light intensity and on the fraction of light absorbed by chlorochromate, but different values for the apparent quantum yield at 435 nm with high and low concentrations imply a nonlinear contribution to the rate. It is proposed that, at least initially, a cycle involving photoreduction of a Cr(vi) species and thermal reoxidation of Cr(v) by CCl(3)OOH produces radicals that initiate further decomposition.
