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Introduction: This report aimed to analyze the outcomes of patients with obesity who were on a bariatric program during the SARS-Cov-2 pandemic outbreak and compare those who received surgery with the ones who were not operated on. Methods: This was a retrospective study between 2020 and 2021. Patients were divided into two groups: those who underwent surgery (O) and those who were not operated (NO). The evolution of the risk factors identified for severe COVID infection and death was studied (ASMBS criteria). For this study, a follow-up period of 12 months was initiated. Results: In the O group, 83 patients were included and 99 were in the NO group. In the O group, patients with body mass index (BMI) > 35 Kg/m2 before surgery resolved the condition in 73.5% (61) cases, and this was done in the first 30 days by 38 (45.7%). Type 2 diabetes mellitus remission was documented in 18 patients (85.7%) of the O group, and the mean time elapsed for remission was 102.2 days (P < .01). Hypertension remitted in 66.7% (20) of the patients in group O in 82.4 days (P < .01). The subgroup of patients with obesity and one high-risk associated condition (30.2%, 25) resolved both in 44% (11) cases and one in 48% (12) cases. In the group of patients with obesity and two high-risk associated conditions (15.6%, 13), 47% (6) patients resolved the three conditions, 38% (5) resolved two conditions, and 15% (2) resolved one condition. Among the NO group, no comorbidity resolutions were recorded (P < .01). Admission because of COVID infection was necessary for 7.1% of NO and 1.2% of O (P = .04). Conclusion: Bariatric metabolic surgery would not increase the risk of COVID infection or of suffering serious complications resulting from it. Patients undergoing bariatric metabolic surgery rapidly resolved high-risk comorbidities and had less need for hospitalization because of SARS-CoV-2 infection.
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INTRODUCTION: Bariatric surgery is established as a possibility for the treatment of obesity, allowing weight reduction and remission of obesity comorbidities. Reported suboptimal clinical response rates are as high as 30-60% (insufficient weight loss or gain, defined as BMI greater than 35 kg/m2 or excess weight loss less than 50%). Proximal jejuno-ileal bypass (PJIBP) is a promising option when re-intervention is required. OBJECTIVES: To describe the standardization of a proprietary technique of modified PJIBP as a management procedure in patients with post-gastric bypass recurrent weight gain or insufficient post-intervention weight loss. METHODS: This study evaluated a case series of 10 Latin American patients requiring post-bariatric re-intervention, between February 2018 and 2023, in a single-metabolic surgery center in Cali-Colombia. RESULTS: Median age was 45 years (26-70 RIC), 60% female, and 40% male. Mean BMI at conversion was 36.7 kg/m2 (6.4 SD). Median follow-up was 22 months (RIC 16-30). Mean percentage of excess weight lost was 78% (22.4 SD). One hundred percent achieved glycemia control, only one patient persisted with dyslipidemia, and no patient presented hypoalbuminemia. At the end of follow-up, 100% received vitamin supplementation. CONCLUSION: PJIBP could be an effective procedure, associated with positive results in relation to weight loss and resolution of obesity comorbidities. Deficiencies of fat-soluble vitamins and protein malnutrition represent the main concern in the long term, so multidisciplinary management and continuous follow-up are required.
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Derivação Gástrica , Derivação Jejunoileal , Obesidade Mórbida , Reoperação , Redução de Peso , Humanos , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , Obesidade Mórbida/cirurgia , Reoperação/estatística & dados numéricos , Derivação Jejunoileal/métodos , Idoso , Resultado do TratamentoRESUMO
Obesity is a worldwide epidemic, and bariatric surgery has become increasingly popular due to its effectiveness in treating it. Therefore, understanding this area is of paramount importance. This article aims to provide an understanding of the development of the topic related to procedures, content, data, and status. To achieve this objective, a literature review and a bibliometric analysis were conducted. The methods provided insight into the current state and relevant topics over time. In conclusion, the article provided the identification of the transformation of the research field, initially focused only on physical aspects, to a more complex approach, which also incorporates psychological and social aspects and the correlation between obesity, bariatric surgery, and quality of life.
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Cirurgia Bariátrica , Obesidade Mórbida , Humanos , Cirurgia Bariátrica/métodos , Obesidade/cirurgia , Obesidade Mórbida/cirurgia , Exame Físico , Qualidade de VidaRESUMO
Patients undergoing metabolic surgery have factors ranging from anatomo-surgical, endocrine metabolic, eating patterns and physical activity, mental health and psychological factors. Some of the latter can explain the possible pathophysiological neuroendocrine, metabolic, and adaptive mechanisms that cause the high prevalence of weight regain in postbariatric patients. Even metabolic surgery has proven to be effective in reducing excess weight in patients with obesity; some of them regain weight after this intervention. In this vein, several studies have been conducted to search factors and mechanisms involved in weight regain, to stablish strategies to manage this complication by combining metabolic surgery with either lifestyle changes, behavioral therapies, pharmacotherapy, endoscopic interventions, or finally, surgical revision. The aim of this revision is to describe certain aspects and mechanisms behind weight regain after metabolic surgery, along with preventive and therapeutic strategies for this complication.
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BACKGROUND: Metabolic and bariatric surgery (MBS) is the preferred method to achieve significant weight loss in patients with Obesity Class V (BMI > 60 kg/m2). However, there is no consensus regarding the best procedure(s) for this population. Additionally, these patients will likely have a higher risk of complications and mortality. The aim of this study was to achieve a consensus among a global panel of expert bariatric surgeons using a modified Delphi methodology. METHODS: A total of 36 recognized opinion-makers and highly experienced metabolic and bariatric surgeons participated in the present Delphi consensus. 81 statements on preoperative management, selection of the procedure, perioperative management, weight loss parameters, follow-up, and metabolic outcomes were voted on in two rounds. A consensus was considered reached when an agreement of ≥ 70% of experts' votes was achieved. RESULTS: A total of 54 out of 81 statements reached consensus. Remarkably, more than 90% of the experts agreed that patients should be notified of the greater risk of complications, the possibility of modifications to the surgical procedure, and the early start of chemical thromboprophylaxis. Regarding the choice of the procedure, SADI-S, RYGB, and OAGB were the top 3 preferred operations. However, no consensus was reached on the limb length in these operations. CONCLUSION: This study represents the first attempt to reach consensus on the choice of procedures as well as perioperative management in patients with obesity class V. Although overall consensus was reached in different areas, more research is needed to better serve this high-risk population.
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Cirurgia Bariátrica , Obesidade Mórbida , Tromboembolia Venosa , Humanos , Obesidade Mórbida/cirurgia , Técnica Delphi , Anticoagulantes , Índice de Massa Corporal , Obesidade/complicações , Obesidade/cirurgia , Cirurgia Bariátrica/métodos , Redução de PesoRESUMO
PURPOSE: Patients after metabolic bariatric surgery (MBS) require attention to maintain energy balance and avoid weight regain. Predictive equations for resting energy expenditure (REE) and total energy expenditure (TEE) are needed since gold standard methods like calorimetry and doubly labeled water are rarely available in routine clinical practice. This study aimed to determine which predictive equation for REE and TEE has the lowest bias in subjects after MBS. METHODS: MEDLINE, Embase, Web of Science, and CENTRAL searches were performed. Meta-analyses were performed with the data calculated by the predictive equations and measured by the gold standard methods for those equations that had at least two studies with these data. The DerSimonian and Laird random-effects model and the I2 statistic were used to quantify heterogeneity in the quantitative analyses. The risk of bias was assessed using the Joanna Briggs Institute critical appraisal checklist. RESULTS: Seven studies were included. The present study found that the Mifflin St. Jeor (1990) equation had the lowest bias (mean difference = - 39.71 kcal [95%CI = - 128.97; 49.55]) for calculating REE in post-BS individuals. The Harris-Benedict (1919) equation also yielded satisfactory results (mean difference = - 54.60 kcal [95%CI = - 87.92; - 21.28]). CONCLUSION: The predictive equation of Mifflin St. Jeor (1990) was the one that showed the lowest bias for calculating the REE of patients following MBS.
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Cirurgia Bariátrica , Obesidade Mórbida , Humanos , Metabolismo Basal , Valor Preditivo dos Testes , Obesidade Mórbida/cirurgia , Calorimetria Indireta , Metabolismo Energético , Reprodutibilidade dos TestesRESUMO
BACKGROUND: The behavior of patients undergoing metabolic bariatric surgery (MBS) has been widely investigated to better understand their attitudes and to formulate effective advisory strategies. Although these elements have been studied separately, the magnitude of these behaviors still needs to be determined from a combined factors approach. This study aimed to identify the lifestyle patterns of patients who underwent MBS 5 or more years ago. METHODS: In this observational study, 123 patients who underwent MBS at least 5 years ago were included. Anthropometric data, sociodemographic profile, dietary intake, physical activity level, sleeping, smoking, and alcohol consumption were collected for all participants. Lifestyle pattern was evaluated using principal component analysis (PCA) and the Kaiser-Meyer-Olkin (KMO) index was applied to evaluate data factorability. RESULTS: PCA identified two patterns of behavior adopted by the participants in the late postoperative (PO) period (more than 5 years PO) of MBS. In the first pattern, a positive correlation was found between consumption of ultra-processed foods (r = 0.459), risky consumption of alcoholic beverages (r = 0.630), and tobacco use (r = 0.584). In the second, a positive correlation was observed between the consumption of unprocessed or minimally processed foods (r = 0.692) and more sleep time per day (r = 0.654). CONCLUSION: After 5 years of PO, combined behavior analysis revealed healthy and unhealthy lifestyle patterns, which points to the relevance of permanent clinical follow-up of these patients to ensure the best health status.
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Cirurgia Bariátrica , Obesidade Mórbida , Humanos , Obesidade Mórbida/cirurgia , Estilo de Vida , Ingestão de Alimentos , Período Pós-Operatório , Comportamento AlimentarRESUMO
Obesity is a global epidemic. According to the World Health Organization (WHO), it is an abnormal or excessive accumulation of fat that can harm health. Its incidence is increasing alarmingly in developing countries. It is also a significant risk factor for developing chronic diseases such as type 2 diabetes mellitus, arterial hypertension, coronary disease, non-alcoholic fatty liver disease, and musculoskeletal disorders such as osteoarthritis. Furthermore, associations have been found between obesity and the development of prostate, liver, gallbladder, kidney, colon, endometrial, breast, and ovarian cancer. Bariatric and metabolic surgery is the most effective treatment for morbid obesity and its comorbidities. This surgery can reduce general mortality by 40% at ten years due to cardiovascular outcomes, diabetes, or cancer and improve metabolic diseases such as type 2 diabetes.
La obesidad es una epidemia global, según la Organización Mundial de la Salud (OMS) se define como una acumulación anormal o excesiva de grasa que puede ser perjudicial para la salud, su incidencia está aumentando de forma alarmante en los países en desarrollo. Asimismo, es un factor de riesgo importante para el desarrollo de enfermedades crónicas como la diabetes mellitus tipo 2, hipertensión arterial, enfermedad coronaria, enfermedad del hígado graso no alcohólico y trastornos musculoesqueléticos como la osteoartritis; además, se han encontrado asociaciones entre la obesidad y el desarrollo del cáncer de próstata, hígado, vesícula biliar, riñón, colon, endometrio, mama y ovarios. La cirugía bariátrica y metabólica es el tratamiento más eficaz para la obesidad mórbida y sus comorbilidades, esta cirugía puede reducir la mortalidad general en un 40% a los diez años por desenlaces cardiovasculares, diabetes o cáncer, como también mejorar enfermedades metabólicas como la diabetes tipo 2.
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BACKGROUND: Persons submitted to bariatric metabolic surgery present micronutrient deficiency before and after surgery, due to the lack of proper supplementation. The aim of this study is to establish the prevalence of micronutrient deficiency in people before and after bariatric metabolic surgery in Latin America. METHODS: This review was conducted in accordance with the 2020 PRISMA Guidelines. RESULTS: Twenty-seven studies and 2135 participants were included. The highest prevalence of deficiency before surgery was reported for vitamin D (74%), zinc (71%), and hemoglobin (62%); after surgery, they were vitamin A (90.6%), vitamin D (90%), and zinc (68%). CONCLUSIONS: There is a high prevalence of micronutrient deficiency before and after bariatric metabolic surgery from Latin American persons; the micronutrients with the highest deficiency prevalence were vitamin D before and vitamin A after bariatric metabolic surgery.
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Cirurgia Bariátrica , Obesidade Mórbida , Humanos , América Latina/epidemiologia , Obesidade Mórbida/cirurgia , Vitamina A , Micronutrientes , Vitaminas , Vitamina D , ZincoRESUMO
Introducción: La obesidad es la segunda causa de muerte susceptible de prevención. El tratamiento quirúrgico es el único tratamiento eficaz y demostrado para pacientes con obesidad grave (índice de masa corporal > 40 kg/m²). Las operaciones bariátricas prolongan la supervivencia y corrigen las enfermedades asociadas con la obesidad grave. Objetivos: Caracterizar los resultados de la cirugía bariátrica en pacientes obesos internados en el Hospital Nacional de Itauguá de marzo a diciembre del año 2019. Materiales y métodos: Estudio observacional, descriptivo de corte transversal, retrospectivo con muestreo no probabilístico a conveniencia. Se incluyeron pacientes de ambos sexos, mayores a 16 años con obesidad sometidos a cirugía bariátrica en el Servicio de Cirugía General del Hospital Nacional de Itauguá. Resultados: Se incluyeron a 24 pacientes, cuyo promedio de peso fue de 117,5 kg y un promedio del IMC de 43,5. El 67% presentó obesidad grado III y el 70% un ASA III. La técnica quirúrgica empleada con mayor frecuencia fue gastrectomía vertical en manga laparoscópica. El promedio de pérdida de exceso de peso post quirúrgico a los 12 meses fue de 56,4 kg. La estancia hospitalaria post quirúrgico en promedio fue de 48 horas. En el 96% de los casos no se presentaron complicaciones. Conclusión: El resultado de nuestro estudio sugiere que la cirugía bariátrica ha demostrado ser una alternativa con excelentes resultados para el tratamiento de la obesidad, mejorando así no solo patologías clínicas crónicas sino también la calidad de vida del paciente.
Introduction: Obesity is the second cause of death susceptible to prevention. Surgical treatment is the only effective and proven treatment for severely obese patients (body mass index > 40 kg/m²). Bariatric operations prolong survival and correct diseases associated with severe obesity. Objectives: To determine the short-term and long-term results of bariatric surgery in obese patients admitted to the National Hospital of Itauguá from March to December 2019. Materials and methods: Observational, descriptive cross-sectional, retrospective study with non-probabilistic sampling at convenience. We included patients of both sexes, over 16 years of age with obesity who underwent bariatric surgery and were admitted to the General Surgery Service of the Hospital Nacional de Itauguá in 2019. Results: Twenty-four patients were followed up in the study, with an average weight of 117.5 kg and a mean BMI of 43.5. 67% presented with grade III obesity and 70% with ASA III. The most frequently used surgical technique was vertical gastrectomy in the laparoscopic sleeve. The average postoperative weight loss at 12 months was 56.4 kg. The average postoperative hospital stay was 48 hours. There were no complications in 96% of cases. Conclusion: The result of our study suggests that bariatric surgery has proven to be an alternative with excellent results for the treatment of morbid obesity, , thus improving not only chronic clinical pathologies but also the quality of life of the patient with increased life expectancy.
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Obesidade , Pacientes , Cirurgia Geral , Cirurgia BariátricaRESUMO
OBJECTIVES: To determine whether metabolic phenotype is associated with the change in carotid intima-media thickness (CIMT) in patients undergoing bariatric /metabolic surgery (BMS). METHODS: We performed a case-control study of BMS candidates who had metabolically unhealthy obesity (MUO) or metabolically healthy obesity (MHO). We measured the change in CIMT during the 9 months following BMS. The plasma tumor necrosis factor-α, interleukin-1ß, adiponectin, leptin, nitric oxide (NO), vascular endothelial growth factor A (VEGF-A), and malondialdehyde concentrations were determined, adipocyte area was measured histologically, and adipose tissue area was estimated using computed tomography. RESULTS: Fifty-six patients (mean age 44.5 years, mean body mass index 44.9 kg/m2, 53% women, and 53% had MUO) were studied. Nine months following BMS, the MUO phenotype was not associated with a significant reduction in CIMT, and that of the MHO group was larger. In addition, fewer participants achieved a 10% reduction in CIMT in the MUO group. A CIMT reduction was associated with lower VEGF-A and NO in the MUO group, while that in the MHO group was associated with a higher NO concentration. CONCLUSION: The metabolic phenotype of patients may influence their change in CIMT following BMS, probably through circulating vasodilatory and pro-inflammatory molecules.
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Cirurgia Bariátrica , Obesidade Metabolicamente Benigna , Feminino , Masculino , Humanos , Espessura Intima-Media Carotídea , Fator A de Crescimento do Endotélio Vascular , Estudos de Casos e Controles , Fatores de Risco , Obesidade Metabolicamente Benigna/metabolismo , Obesidade/metabolismoRESUMO
BACKGROUND: Nowadays, the high morbimortality of obesity is mainly related to diabetes, cancer, and hypertension. It is reported that obesity in patients with hypertension can lead to resistance to pressure reduction through pharmacological therapy and lifestyle changes, so bariatric surgery emerges as a proposed treatment for obesity. METHODS: We performed an umbrella review that included systematic reviews of clinical trials that evaluated patients with hypertension and non-morbid obesity. The quality and certainty of the evidence was evaluated with the AMSTAR-II and GRADE tools. RESULTS: 677 systematic reviews were identified, of which only three were included for analysis. We considered the outcomes addressed by the reviews on hypertension, identifying that 5 RCTs evaluated pressure reduction at 1 year of follow-up and 5 RCTs at more than 1 year, 5 RCTs evaluated hypertension rate, 6 RCTs analyzed changes in systolic pressure and 5 RCTs changes in diastolic pressure. Likewise, when assessing the methodological quality, it was concluded that the three reviews have critically low quality. CONCLUSIONS: We found only three systematic reviews that evaluated the topic with critically low methodological quality. They reported results in favor of metabolic surgery, but with very low certainty of evidence.
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Cirurgia Bariátrica , Hipertensão , Adulto , Humanos , Estilo de Vida , Obesidade , Revisões Sistemáticas como AssuntoRESUMO
ABSTRACT BACKGROUND: Few reports have examined the effects of Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB) and sleeve gastrectomy (SG) on changes to serum albumin (Alb) and liver enzyme levels. OBJECTIVE: To compare short-term post-surgery changes in serum Alb, aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphatase (ALKP) levels. Body composition changes were also measured and compared among three groups. DESIGN AND SETTING: Retrospective cohort study conducted in Tehran, Iran. METHODS: 151 OAGB, RYGB and SG patients referred to the obesity clinic of Hazrat-e Rasool General Hospital, Tehran, Iran, were evaluated. Physical characteristics and biochemical parameters were measured pre-surgery and then after three and six months. RESULTS: Through repeated measurements to determine intragroup changes, significant changes in serum AST (P = 0.003) and ALT (P < 0.001) were observed in follow-ups. However, Alb levels did not change (P = 0.413). Body fat, fat-free mass and muscle mass decreased significantly in each group (P < 0.05). In a univariate general linear model for determining intergroup changes, SG showed greater decreases in ALT and AST at three and six months (P < 0.05) and in ALKP at six months (P = 0.037), compared with OAGB. There were no significant differences in Alb levels. Also, RYGB had a greater effect on reducing fat percentage (three months, P = 0.011; six months, P = 0.059) and fat mass (three months, P = 0.042) than OAGB. CONCLUSION: SG and RYGB may be superior to OAGB in reducing liver enzymes and body fat, respectively. However, Alb levels showed no significant differences.
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Humanos , Obesidade Mórbida/cirurgia , Derivação Gástrica , Cirurgia Bariátrica , Albumina Sérica , Estudos Retrospectivos , Seguimentos , Resultado do Tratamento , Gastrectomia , Irã (Geográfico) , FígadoRESUMO
Resumen La obesidad es reconocida como "la gran epidemia" del siglo XXI. Los primeros tratamientos fueron enfocados en el manejo médico, sin lograr los resultados esperados, por lo cual surge la cirugía bariátrica (CB) como la mejor alternativa. Inicialmente la obesidad se concibe como una figura de poder en el imperio egipcio, luego como enfermedad por Galeno e Hipócrates, reapareciendo más tarde como símbolo de fecundidad en Europa. Las primeras técnicas fueron el bypass yeyuno-colónico por Payne y De Wind modificado luego por Scopinaro, consolidándose más tarde como el bypass actual por Mason, Wittgrove e Higa. Por su parte, la gastrectomía en manga fue concebida por Gagner como puente de la derivación biliopancreática, pero dado sus excelentes resultados se consolida como técnica por sí sola. A su vez, la CB evidencia efectos metabólicos inesperados, posicionándose en la actualidad como el mejor tratamiento tanto para la obesidad como para el síndrome metabólico. En Chile la CB se inicia en 1986 con González del Hospital Van Buren con la experiencia en bypass yeyuno-ileal, continuando con Awad y Loehnert del Hospital San Juan de Dios. Luego se consolida con el desarrollo de la CB moderna tanto en la Universidad Católica como en la Universidad de Chile, llegando en la actualidad a ser un procedimiento ampliamente difundido en todo el país. El objetivo principal de la siguiente revisión es analizar el concepto de obesidad en la historia y la evolución de la CB en Chile y el mundo, rememorando sus inicios y destacando su constante desarrollo.
Obesity is recognized as "the great epidemic" of the 21st century. The first treatments were focused on medical management, failing to achieve the expected results, which is why bariatric surgery (BC) emerges as the best alternative. Obesity was initially conceived as a power figure in the Egyptian empire, later as a disease by Galen and Hippocrates, later reappearing as a symbol of fertility in Europe. The first techniques were the jejuno-colonic bypass by Payne and De Wind, later modified by Scopinaro, to finally consolidate as the current bypass by Mason, Wittgrove and Higa. For its part, sleeve gastrectomy was conceived by Gagner as a bridge for biliopancreatic diversion, but given its excellent results, it is consolidated as a technique by itself. In turn, BC shows unexpected metabolic effects, currently positioning itself as the best treatment for both obesity and metabolic syndrome. In Chile, BC started in 1986 with González at the Van Buren Hospital with his experience in jejuno-ileal bypass, continuing with Awad and Loehnert at the San Juan de Dios Hospital. Later, it was consolidated with the development of modern BC both at the Catholic University and at the University of Chile, currently becoming a widely disseminated procedure throughout the country. The main objective of the following review is to analyze the concept of obesity in history and the evolution of BC in Chile and the world, recalling its beginnings and highlighting its continuous development.
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Humanos , Cirurgia Bariátrica/métodos , Metabolismo/fisiologia , Obesidade Mórbida/cirurgia , Derivação Gástrica/métodos , Chile , Cirurgia Bariátrica/história , Medicina Bariátrica/históriaRESUMO
La prevalencia de obesidad y diabetes mellitus se asocia al desarrollo de enfermedad renal crónica y estadios terminales de la misma. En individuos con obesidad se produce un mecanismo de hiperfiltración, probablemente compensatorio para satisfacer la alta demanda metabólica asociada al aumento del peso corporal, con la presencia de proteinuria en individuos sin enfermedad renal. La histopatología muestra una glomeruloesclerosis focal y segmentaria relacionada con la obesidad en un marco de glomerulomegalia. La cirugía metabólica es el medio más efectivo para obtener una pérdida de peso sustancial y persistente. Se ha demostrado la superioridad de la cirugía sobre el tratamiento médico no solo para lograr un mejor control glucémico, sino también para la reducción de los factores de riesgo cardiovascular. Los mecanismos parecen extenderse más allá de la magnitud de la pérdida de peso e incluyen mejoras tanto en los perfiles de incretinas como en la secreción y la sensibilidad a la insulina. El Comité de Nefropatía de la Sociedad Argentina de Diabetes realizó esta revisión sobre los mecanismos involucrados en la obesidad como causa de enfermedad renal o empeoramiento de la misma por diabetes, y los mecanismos a través de los cuales la cirugía bariátrica beneficiaría a los pacientes con diabetes y enfermedad renal crónica en todos los estadios de la misma, así como los controles pre y posquirúrgicos en este tipo de cirugías.
The prevalence of obesity and diabetes mellitus are associated with the development of chronic kidney disease and its terminal stages. In individuals affected by obesity, a probably compensatory hyperfiltration mechanism occurs to satisfy the high metabolic demand associated with increased body weight; it is also associated with the presence and development of proteinuria in individuals without kidney disease. Histopathology shows obesity-related focal and segmental glomerulosclerosis in a setting of glomerulomegaly. Metabolic surgery is the most effective means of obtaining substantial and lasting weight loss. The superiority of surgery over medical treatment has been demonstrated only to achieve better glycemic control, as well as a reduction in cardiovascular risk factors. The mechanisms appear to extend beyond the magnitude of weight loss and include improvements in incretin profiles, insulin secretion, and insulin sensitivity. The Nephropathy Committee of the Argentine Diabetes Society carried out this review on mechanisms involved in obesity as a cause of kidney disease or worsening of kidney disease due to diabetes, the mechanisms by which bariatric surgery would benefit patients with diabetes and kidney disease chronic and its terminal stages, the pre and post-surgical controls that should be performed by patients undergoing this type of surgery
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Cirurgia Bariátrica , Diabetes Mellitus , Nefropatias , ObesidadeRESUMO
La prevalencia de obesidad y diabetes mellitus se asocia al desarrollo de enfermedad renal crónica y estadios terminales de la misma. En individuos con obesidad, se produce un mecanismo de hiperfiltración, probablemente compensatorio para satisfacer la alta demanda metabólica asociada al aumento del peso corporal, con la presencia de proteinuria, en individuos sin enfermedad renal. La histopatología muestra una glomeruloesclerosis focal y segmentaria relacionada con la obesidad en un marco de glomerulomegalia. La cirugía metabólica es el medio más efectivo para obtener una pérdida de peso sustancial y persistente. Se ha demostrado la superioridad de la cirugía sobre el tratamiento médico no solo para lograr un mejor control glucémico, sino también para la reducción de los factores de riesgo cardiovascular. Los mecanismos parecen extenderse más allá de la magnitud de la pérdida de peso e incluyen mejoras tanto en los perfiles de incretinas como en la secreción y la sensibilidad a la insulina. El Comité de Nefropatía de la Sociedad Argentina de Diabetes realizó esta revisión sobre los mecanismos involucrados en la obesidad como causa de enfermedad renal o empeoramiento de la misma por diabetes, y los mecanismos a través de los cuales la cirugía bariátrica beneficiaría a los pacientes con diabetes y enfermedad renal crónica en todos los estadios de la misma, así como los controles pre y posquirúrgicos en este tipo de cirugías.
The prevalence of obesity and diabetes mellitus are associated with the development of chronic kidney disease and its terminal stages. In individuals affected by obesity, a probably compensatory hyperfiltration mechanism occurs to satisfy the high metabolic demand associated with increased body weight; it is also associated with the presence and development of proteinuria in individuals without kidney disease. Histopathology shows obesity-related focal and segmental glomerulosclerosis in a setting of glomerulomegaly. Metabolic surgery is the most effective means of obtaining substantial and lasting weight loss. The superiority of surgery over medical treatment has been demonstrated only to achieve better glycemic control, as well as a reduction in cardiovascular risk factors. The mechanisms appear to extend beyond the magnitude of weight loss and include improvements in incretin profiles, insulin secretion, and insulin sensitivity. The Nephropathy Committee of the Argentine Diabetes Society carried out this review on mechanisms involved in obesity as a cause of kidney disease or worsening of kidney disease due to diabetes, the mechanisms by which bariatric surgery would benefit patients with diabetes and kidney disease chronic and its terminal stages, the pre and post-surgical controls that should be performed by patients undergoing this type of surgery.
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Cirurgia Bariátrica , Diabetes Mellitus , Insuficiência Renal Crônica , ObesidadeRESUMO
Resumen: El término de síndrome metabólico (SM) se ha utilizado desde su definición en el año 2001 por el programa nacional del colesterol (NCEP: ATP III). El concepto ha sido discutido en la literatura científica por décadas. El síndrome X y otros términos como "el cuarteto de la muerte" y el síndrome de resistencia a la insulina, han sido utilizados para describir la asociación entre factores de riesgo metabólico y cardiovascular. En México, la prevalencia de SM en la Encuesta Nacional de Salud y Nutrición (ENSANUT) fue de un 34% para el año 2000; y para el 2012, del 41%. Las modificaciones del estilo de vida junto con aumento en la actividad física, dejar de fumar y limitar el consumo de alcohol son primordiales para el manejo y la prevención debido a que juegan un rol central en las anormalidades metabólicas. Sin embargo, a pesar del impresionante armamento de medicamentos disponible para la diabetes, se ha descrito que hasta el 50% de los pacientes no alcanzan las metas adecuadas de control, definidas por la Asociación Americana de Diabetes (hemoglobina glucosilada <7%). En contraste, la cirugía bariátrica (CB) ha confirmado claramente que contribuye a mejorar la función de las células beta en pacientes con índice de masa corporal (IMC) >35 kg/m2, así como el control de la dislipidemia y otras alteraciones metabólicas.
Abstract: The term Metabolic Syndrome (MS) has been used since its introduction in 2001 by the National Cholesterol Program (NCEP: ATP III). The concept has been discussed in the scientific literature for decades. The X Syndrome and other terms such as "death quartet" and insulin resistance syndrome have been used to describe the association between metabolic and cardiovascular risk factors. In Mexico, the prevalence of MS in the National Health and Nutrition Survey (Encuesta Nacional de Salud y Nutrición, ENSANUT) was 34% in 2000 and 41% in 2012. Lifestyle modifications along with increased physical activity, quitting smoking, and limiting alcohol consumption are essential for management and prevention because they play a central role in metabolic abnormalities. However, despite the large amount of medications available for diabetes, up to 50% of patients have been reported to fail to achieve adequate control goals, as defined by the American Diabetes Association (glycosylated hemoglobin <7%). In contrast, bariatric surgery (BS) has clearly confirmed that it contributes to improved beta cell function in patients with BMI >35 kg / m2, as well as control of dyslipidemia and other metabolic disorders.
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OBJECTIVES: We aimed to determine whether parameters associated with adipose tissue (adipocyte density and the circulating concentrations of markers of adipose tissue pathology) predict cardiovascular risk (CVR) modification after metabolic surgery (MS). METHODS: We performed a case-control study of patients with morbid obesity who were candidates for MS. CVR was defined using flow-mediated dilation (FMD) and carotid intima media thickness (CIMT), which were measured during the 9 months following MS. Subgroups of CVR reduction were defined using the following cut-offs: CIMT 10% and/or a two-fold increase in FMD. RESULTS: We studied 40 patients with morbid obesity (mean age 44.5 years, 75% women, mean body mass index 46.4 kg/m2) and high prevalences of the metabolically unhealthy obesity phenotype, hypertension, and diabetes mellitus. A significant reduction in CVR was associated with lower vascular endothelial growth factor-A concentration (6.20 vs. 1.59 pg/mL, respectively), low adipocyte density in visceral adipose tissue (100 vs. 80 cells/field), low infiltration with CD68+ cells (18 vs. 8 cells/field) and higher concentrations of lipid peroxidation markers and malondialdehyde (313.7 vs. 405.7 ng/mL). CONCLUSION: The characteristics of adipose tissue and the circulating concentrations of markers of adipose pathology might represent useful predictors of the reduction in CVR following MS.Clinical trial registration number: NCT0356198 (https://clinicaltrials.gov).