Purpose
Weight regain (WR) compromises the effectiveness of bariatric surgery. The objective of this study was to determine differences in long-term WR prevalence using different definitions and ...analyze possible preoperative predictors involved.
Methods
Single-center retrospective cohort study including 445 adults who underwent 3 modalities of bariatric surgery between 2009 and 2014. Exposure: age, gender, ethnicity, body mass index (BMI), type 2 diabetes (T2D), hypertension (HTN), and type of surgery. Main outcomes: WR at year 6 assessed by 4 definitions and 6 multivariate models based on common thresholds.
Results
Our cohort (71.1% female) had a mean age of 44.78 ± 11.94 years, and mean presurgery BMI of 44.94 ± 6.88 kg/m
2
, with a median follow-up of 6 years (IQR=5–8). The prevalences of T2D and HTN were 36.0% and 46.7% respectively. WR rates over thresholds ranged from 25.4 to 68.1%, with significant differences between groups in the WR measured as the percentage of maximum weight loss (MWL) and the increase in excess weight loss (EWL). Presurgery BMI was a significant predictor in 3 models; restrictive techniques were associated with WR in all the models except for those considering WR over 10 kg and WR over 15% from nadir as dependent variables.
Conclusions
In this long-term study, WR defined as percentage of MWL and increase in EWL from nadir had the greatest significance in logistic regression models with preoperative BMI and type of surgery as independent variables. These findings could serve to establish a standardized outcome reporting WR in other longitudinal studies.
Graphical Abstract
Key Points
•
Lack of standardized outcome to measure weight regain after bariatric surgery.
• Lowest rates of weight regain in malabsorptive techniques in all definitions applied.
• Weight regain measured as percentage of maximum weight lost.
Nutrition plays an important role in bone health. The aim of our study was to update the evidence regarding dairy intake, osteoporotic fracture (OF) risk, and prospective bone mass density (BMD) ...evolution assessed by dual-energy X-ray absorptiometry in Europeans and non-Hispanic whites from North America. A systematic search was conducted in MEDLINE, EMBASE, and Scopus for papers published from 1 January, 2000 to 30 April, 2018. The eligibility criteria were as follows: healthy adults; measurable dairy exposure; hip, vertebral, wrist or OF as outcomes; and cohort or case-control studies. Two independent investigators conducted the search and the data extraction. A pooled analysis was conducted with random-effects models. Publication bias and meta-regression were considered. Ten cohort studies relating to OF risk were selected for meta-analysis. Three papers reporting BMD changes associated with dairy intake could not be aggregated in the meta-analysis. The pooled HRs of the highest compared with the lowest levels of dairy intake were 0.95 (95% CI: 0.87, 1.03; I2 = 82.9%; P-heterogeneity < 0.001) for OF at any site; 0.87 (95% CI: 0.75, 1.01; I2 = 86.7%; P-heterogeneity < 0.001) for hip fractures; and 0.82 (95% CI: 0.68, 0.99; I2 = 0.0%; P-heterogeneity = 0.512) for vertebral fractures. Concerning BMD, the selected studies described a 1.7–3% lower hip BMD in young and postmenopausal women with poor intake of milk in their youth, a positive relationship between baseline milk ingestion and the percentage of trochanter BMD change in elderly people, and a positive correlation between milk consumption and BMD change at the radius in women aged >65 y. In conclusion, in the studied population, the highest consumption of dairy products did not show a clear association with the total OF or hip fracture risks; however, a diminished risk of vertebral fracture could be described. The results regarding BMD change were heterogeneous and did not allow for a definitive conclusion.
Nutritional management of patients with intestinal failure often includes the use of oligomeric formulas. Implementing the use of oligomeric formulas in surgical patients with maldigestion or ...malabsorption could be a nutritional strategy to be included in clinical protocols. We aim to generate knowledge from a survey focused on the effectiveness of nutritional therapy with oligomeric formulas with Delphi methodology. Each statement that reached an agreement consensus among participants was defined as a median consensus score ≥7 and as an interquartile range ≤3. The use of oligomeric formulas in surgical patients, starting enteral nutrition in the post-operative phase in short bowel syndrome and in nonspecific diarrhea after surgical procedures, could improve nutritional therapy implementation. Stakeholders agreed that early jejunal enteral nutrition with oligomeric formula is more effective compared to intravenous fluid therapy and it is useful in patients undergoing upper gastro-intestinal tract major surgery when malabsorption or maldigestion is suspected. Finally, oligomeric formulas may be useful when a feeding tube is placed distally to the duodenum. This study shows a practical approach to the use of oligomeric formulas in surgical patients with intestinal disorders and malabsorption, and it helps clinicians in the decision-making process.
The Circadian Locomotor Output Cycles Kaput (CLOCK) gene has been linked to metabolic dysfunction and obesity. The purpose of this study was to analyze the association between single nucleotide ...polymorphisms (SNPs) of CLOCK gene with obesity and with long-term weight response after different bariatric surgery (BS) techniques. The cohort includes 375 patients with morbid obesity (MO) and 230 controls. In the association study of SNPs with weight response we combined several variables as phenotype at 6 years after surgery. The study protocol was registered in ISRCTN (ID80961259). The analysis of the selected SNPs was performed by allelic discrimination using Taqman® probes. The genotype association study was performed using the SNPStats program, with comparisons adjusted for sex, age, initial Body Mass Index, type 2 diabetes and hypertension diagnosis, and type of surgery. In the case-control study two of three SNPs were significantly associated with MO. The variant rs1801260 had a protective effect for MO whereas the TT genotype of rs3749474 variant had the strongest association with MO (OR = 2.25 (1.39–3.66); p = 0.0006). In the linear regression analysis both variants showed significant association with long-term weight loss and weight regain after BS, independently of the pre-surgery patient profile.
Diabetes mellitus and/or hyperglycemia are highly prevalent medical conditions in patients hospitalized for coronavirus disease 2019 (COVID-19) and are associated with adverse outcomes. In addition, ...COVID-19 itself can provoke fluctuating and high glucose levels that can be difficult to manage upon hospitalization
.
Hospitalized patients with COVID-19 are at high risk of malnutrition due to an increase in nutritional requirements and a severe acute inflammatory response. The management of patients with diabetes/hyperglycemia and COVID-19 is challenging and requires a specific nutritional approach, the purpose of which is to fulfill the nutritional requirements while maintaining an optimal glycemic control. In this study, an expert group of nutritional endocrinologists carried out a qualitative literature review and provided recommendations based on evidence and guidelines, when available, or on their own experience. The optimal care based on these recommendations was compared with the routine bedside care as reported by a panel of physicians (mainly, endocrinologists, geriatricians, and internists) treating patients with diabetes/hyperglycemia and COVID-19 in their daily practice. Early screening and diagnosis, a diabetes-specific therapeutic approach, and a close malnutrition monitoring are essential to improve the clinical outcomes of these patients. In conclusion, the proposed recommendations are intended to provide a useful guide on the clinical management of malnutrition in patients with COVID-19 and diabetes/hyperglycemia, in order to improve their outcomes and accelerate their recovery. The comparison of the recommended optimal care with routine clinical practice could aid to identify gaps in knowledge, implementation difficulties, and areas for improvement in the management of malnutrition in this population.
The pathophysiology of body weight control involves complex interactions between hormonal, environmental, behavioral and genetic factors. The purpose of this study was to analyze the association ...between single nucleotide polymorphisms (SNPs) of 13 genes encoding gastrointestinal peptides, their receptors or the proteins involved in their expression, with long-term weight response in a cohort of 375 patients undergoing bariatric surgery (BS). To evaluate weight response, we combined several variables to define specific response phenotypes six years after surgery. The study protocol was registered in ISRCTN (ID80961259). The analysis of the selected SNPs was performed via allelic discrimination using Taqman
probes (Applied Biosystems, Foster City, CA, USA). The genotype association study was performed using the SNPstat program, with comparisons adjusted for sex, age, initial body mass index, type 2 diabetes, hypertension diagnosis and the type of surgery. We identified eight genetic variants associated with the weight response to BS, independently of the presurgery patient profile and the type of surgical technique, from which we calculated the unweighted risk score (RS) for each phenotype. The highest scoring category in each RS was significantly associated with lower weight loss (
= 0.0001) and greater weight regain (
= 0.0012) at the end of the follow-up.
Gastric bypass determines an increase in incretin secretion and glucose excursions throughout the day and may sometimes entail the development of severe post-bariatric hypoglycemia (PBH). However, ...there is no consensus on the gold standard method for its diagnosis. In this study, we evaluated the usefulness of a mixed meal tolerance test (MMTT) and continuous glucose monitoring (CGM) for the diagnosis of PBH, defined as glucose levels <54 mg/dL (3.0 mmol/L). We found that hypoglycemia occurred in 60% of patients after the MMTT and in 75% during CGM, and it was predominantly asymptomatic. The MMTT confirmed the diagnosis of PBH in 88.9%of patients in whom surgery had been performed more than three years ago, in comparison to 36.4% in cases with a shorter postsurgical duration. CGM diagnosed nocturnal asymptomatic hypoglycemia in 70% of patients, and daytime postprandial hypoglycemia in 25% of cases. The mean duration of asymptomatic hypoglycemia was more than 30 min a day. Patients with ≥2% of their CGM readings with hypoglycemia exhibited a higher degree of glucose variability than those with <1% of the time in hypoglycemia. Our results show that the MMTT may be a useful dynamic test to confirm the occurrence of hypoglycemia in a large number of patients with persistent and recurrent PBH during long-term follow-up after gastric bypass. CGM, on its part, helps identify hypoglycemia in the real-world setting, especially nocturnal asymptomatic hypoglycemia, bringing to light that PBH is not always postprandial.
The aim of this study was to compare the metabolic benefits of diabetes-specific formulas (DSF) high in monounsaturated fatty acids (MUFA) with standard formulas (STDF) in adult patients with type 1, ...type 2 diabetes or stress-induced hyperglycaemia.
A systematic review and meta-analysis were conducted through a literature search using different electronic databases from the index date to December 2018. We included randomised controlled trials that assessed the health benefits of high MUFA DSF vs STDF. Included outcomes were glycaemic control, lipid metabolism and tolerance. Effect sizes were calculated as standardised mean differences (SMDs) (<0.4 were considered small, 0.4–0.7 moderate and >0.7 large). This systematic review was registered as CRD42018108931 on Prospero.
Of 385 references reviewed, 18 studies involving 845 adults met our inclusion criteria and contributed to the meta-analysis. Use of a high MUFA DSF compared with a STDF was associated with a statistically significant decrease in peak of postprandial glucose SMD −1.53, 95% confidence interval (CI) −2.44 to −0.61, incremental glucose response (SMD −1.19, 95% CI −1.71 to −0.68), area under the curve of plasma insulin (SMD −0.65, 95% CI −1.03 to −0.26), mean blood glucose level (SMD −0.41, 95% CI −0.63 to −0.19), glycosylated haemoglobin (HbA1c) change (SMD −0.63, 95% CI −1.21 to −0.05), glucose variability (SMD −0.93, −1.55 to −0.31), mean administered insulin dose (SMD −0.49, 95% CI −0.85 to −0.14), mean blood triglycerides (SMD −0.34, 95% CI −0.65 to −0.03) and increase of mean blood high-density lipoproteins (SMD +0.42, 95% CI 0.08 to 0.76). Non-significant differences were found for tolerance odds ratio (OR) 0.95, 95% CI 0.87 to 1.05.
This meta-analysis shows that a DSF (oral supplements and tube feeds) high in MUFAs can improve glucose control and metabolic risk factors among patients with diabetes or stress-induced hyperglycaemia compared with a STDF.
IMPORTANCE: High-quality dietary patterns may help prevent chronic disease, but limited data exist from randomized trials about the effects of nutritional and behavioral interventions on dietary ...changes. OBJECTIVE: To assess the effect of a nutritional and physical activity education program on dietary quality. DESIGN, SETTING, AND PARTICIPANTS: Preliminary exploratory interim analysis of an ongoing randomized trial. In 23 research centers in Spain, 6874 men and women aged 55 to 75 years with metabolic syndrome and no cardiovascular disease were enrolled in the trial between September 2013 and December 2016, with final data collection in March 2019. INTERVENTIONS: Participants were randomized to an intervention group that encouraged an energy-reduced Mediterranean diet, promoted physical activity, and provided behavioral support (n = 3406) or to a control group that encouraged an energy-unrestricted Mediterranean diet (n = 3468). All participants received allotments of extra-virgin olive oil (1 L/mo) and nuts (125 g/mo) for free. MAIN OUTCOMES AND MEASURES: The primary outcome was 12-month change in adherence based on the energy-reduced Mediterranean diet (er-MedDiet) score (range, 0-17; higher scores indicate greater adherence; minimal clinically important difference, 1 point). RESULTS: Among 6874 randomized participants (mean SD age, 65.0 4.9 years; 3406 52% men), 6583 (96%) completed the 12-month follow-up and were included in the main analysis. The mean (SD) er-MedDiet score was 8.5 (2.6) at baseline and 13.2 (2.7) at 12 months in the intervention group (increase, 4.7 95% CI, 4.6-4.8) and 8.6 (2.7) at baseline and 11.1 (2.8) at 12 months in the control group (increase, 2.5 95% CI, 2.3-2.6) (between-group difference, 2.2 95% CI, 2.1-2.4; P < .001). CONCLUSIONS AND RELEVANCE: In this preliminary analysis of an ongoing trial, an intervention that encouraged an energy-reduced Mediterranean diet and physical activity, compared with advice to follow an energy-unrestricted Mediterranean diet, resulted in a significantly greater increase in diet adherence after 12 months. Further evaluation of long-term cardiovascular effects is needed. TRIAL REGISTRATION: isrctn.com Identifier: ISRCTN89898870
Resumen La incidencia de cáncer aumenta a medida que avanza la edad. Con el envejecimiento, y con una enfermedad crónica como el cáncer, crece la prevalencia de desnutrición relacionada con la ...enfermedad (DRE), de sarcopenia, de caquexia y de fragilidad. Estas se asocian a mortalidad, a toxicidad por tratamiento antineoplásico y a complicaciones posquirúrgicas. En este artículo se repasan, de forma diferencial en mayores, la prevalencia de DRE, sarcopenia y caquexia, la manera de diagnosticar estas situaciones en la clínica diaria, su fisiopatología, su relación con el pronóstico clínico y las evidencias sobre la eficacia del tratamiento médico nutricional y multimodal, con el ejercicio físico como principal aliado. Por el momento, son escasas las guías que se refieren únicamente al paciente mayor y, hasta que se generen más estudios en este grupo de enfermos, las actuaciones en materia de nutrición deberán basarse en las ya publicadas de forma general en oncología. Si el paciente mayor presenta desnutrición, y esta puede condicionar la calidad de vida o el pronóstico clínico, el tratamiento médico nutricional debe progresar, de forma individualizada, desde el consejo dietético hasta las formas más complejas de tratamiento como la suplementación oral, la nutrición enteral o la nutrición parenteral.
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