Clinical Obesity最新文献

The aim was to summarize the characteristics of exercise interventions based on the adherence of adults with obesity. Studies were identified through a systematic review of the literature conducted in databases in June 2022. The articles selected were from clinical trials involving adults with obesity. The total number of prescribed sessions and the mean or percentage of sessions attended by participants who completed the intervention were identified, along with details of the exercise prescription, including duration, attendance, and intensity control. A total of 21 studies were included in the synthesis. The adherence percentage ranged from 18% to 99% of the prescribed exercise sessions. Interventions that provided only guidance meetings for physical activities without supervising the training—allowing participants to choose the modality and loads—resulted in adherence to less than half of the prescribed sessions. The session duration and weekly attendance varied between 30–60 min and 2–3 times per week across the studies synthesized. These variables did not appear to significantly affect adherence percentages in this population. It was possible to conclude that supervised interventions, with combined training, which include moderate to high-intensity physical exercises and/or interval training and with some social support, resulted in greater adherence to sessions in adults with obesity.

Metabolic and bariatric surgeries (MBS), including Roux-en-Y Gastric Bypass (RYGB) and Sleeve Gastrectomy (SG), have proven effective in promoting long-term diabetes remission among patients with type-2 diabetes (T2D). In this multicentre retrospective cohort study, we investigated the effectiveness of RYGB and SG in achieving diabetes remission, specifically among patients with T2D and vascular complications, while accounting for similar baseline diabetes severity. Although various scores predict diabetes remission after bariatric surgery, they do not consider diabetes-related vascular complications, which can influence outcomes even in patients with similar baseline T2D severity. We collected preoperative data on microvascular (retinopathy, nephropathy, neuropathy) and macrovascular comorbidities (coronary artery disease, cerebrovascular accidents, peripheral artery disease) to compare the efficacy of RYGB and SG. Among 961 patients analysed, those with vascular complications showed higher remission rates with RYGB (OR: 1.97) compared to SG, despite similar baseline diabetes severity. Notably, RYGB patients with microvascular complications had a significant advantage in achieving T2D remission (OR: 2.95). However, no significant differences in remission were observed in patients with macrovascular complications. These findings suggest that RYGB may be more effective than SG in specific patient populations, particularly those with microvascular complications, emphasizing the need for personalized treatment strategies.

This study addresses the diagnostic challenges of identifying lymphoedema in patients with lipoedema using lymphoscintigraphy. Overdiagnosis of lymphoedema in this patient population is frequent and may result in reduced proposed surgical interventions. We retrospectively analyzed clinical data from patients followed for lipoedema, lymphoedema or lipolymphoedema and who underwent lymphoscintigraphy. All patients were assigned a clinical or lymphoscintigraphic diagnosis of lymphoedema and concordance between clinical and lymphoscintigraphic diagnosis was assessed. A modification of lymphoscintigraphic criteria interpretation was proposed to enhance the diagnosis specificity. We included 94 female patients (188 lower limbs). One hundred and thirty-seven limbs presented with signs of lipoedema (137/188; 72.9%) and 42 with clinical signs of lymphoedema (42/188; 22.3%). Overall, 125 limbs presented with a diagnosis of lymphoedema on lymphoscintigraphy (125/188; 66.5%). Using lymphoscintigraphy to diagnose lymphoedema in patients with lipoedema resulted in low specificity (38.3%). By adjusting the interpretation criteria of the lymphoscintigraphic anomalies, we could achieve a specificity of 80.85%, reducing the risk of overdiagnosing lymphoedema in patients with lipoedema. This study contributes to the ongoing efforts to optimize the assessment and management of patients with lipoedema and potential lymphatic involvement, by modifying the interpretation of lymphoscintigraphic criteria.

Biliopancreatic diversion with duodenal switch (BPD-DS) and single anastomosis duodeno-ileostomy with sleeve (SADI-S) are associated with superior and sustained weight loss outcomes. Despite their growing popularity, long-term safety profiles, particularly the risk of internal hernia (IH), remain underexplored. This study aimed to evaluate the incidence and characteristics of IH following BPD-DS and SADI-S procedures, comparing their clinical presentation, diagnostic methods, and outcomes. A retrospective chart review was performed for patients who underwent BPD-DS or SADI-S between 2008 and 2023 in two high-volume tertiary referral centres for bariatric surgery in the United States. Demographic data, comorbidities, operative details, and follow-up outcomes were collected. A subgroup analysis of IH cases was conducted to compare the incidence, location of hernias, and diagnostic modalities between procedures. Out of 1160 patients (85.1% BPD-DS; 14.9% SADI-S), the overall incidence of IH was 1.12%, with a higher rate in BPD-DS (0.8%) than in SADI-S (0.57%). Most IHs occurred within the first 24 months postoperatively. The majority of IHs in BPD-DS patients were in the pseudo-Petersen's space. The single IH case in the SADI-S group occurred in the same space. Most patients presented with abdominal pain and were diagnosed by CT imaging. SADI-S showed a lower IH rate compared to BPD-DS, but further studies are needed to confirm these findings. The variability in clinical presentation complicates the diagnosis of IH, emphasizing the need for increased clinical vigilance.

The endocrine consequences of weight loss by bariatric surgery (BS) and caloric restriction are not fully understood but contribute to variable improvements in insulin sensitivity and cardiometabolic health. This study compared changes in insulin sensitivity and plasma concentrations of gut peptides 8 weeks and 1 year after BS and a low-calorie diet (LCD). Nineteen female patients with obesity self-selected BS (gastric bypass [n = 5] or sleeve gastrectomy [n = 7]) or LCD (n = 7) in this parallel-arm, prospective observational study. We assessed insulin sensitivity via a two-step hyperinsulinemic–euglycemic clamp (20 and 80 mU/min/m² insulin). Plasma glucose, insulin, and gut peptides were measured around a mixed meal tolerance test (400 kcal). Visual analogue scales (VAS) were used to rate subjective appetite sensations. All assessments were conducted at baseline and after 8 weeks and 1 year of intervention. Whole-body insulin sensitivity was unchanged 8 weeks after the intervention. One year after surgery, insulin sensitivity at both 20 and 80 mU/m²/min insulin infusion doses increased with BS weight loss (−33.8% ± 1.4% body weight) but was unchanged in LCD with small weight loss (−3.7% ± 2.0% body weight). Postprandial total PYY increased more following BS while total and acylated ghrelin decreased more following BS compared to LCD. Hunger decreased and fullness increased with BS compared to LCD (p = .037; p = .010, respectively). Insulin sensitivity was improved only 1 year after BS, despite significant weight loss after 8 weeks. Changes in gut peptides after BS paralleled reduced hunger and increased fullness. Most improvements in cardiometabolic health were related to weight loss.

Global obesity rates have risen dramatically, now exceeding deaths from starvation. Metabolic and bariatric surgery (MBS), initially for severe obesity (BMI ≥35 kg/m²), is performed globally over 500 000 times annually, offering significant metabolic benefits beyond weight loss. However, varying eligibility criteria globally impact patient care and healthcare resources. Updated in 2022, ASMBS and IFSO guidelines aim to standardise MBS indications, reflecting current understanding and emphasising comprehensive preoperative assessments. Yet, clinical variability persists, necessitating consensus-based recommendations. This modified Delphi study engaged 45 global experts to establish consensus on perioperative management in MBS. Experts selected from bariatric societies possessed expertise in MBS and participated in a two-round Delphi protocol. Consensus was achieved on 90 of 169 statements (53.3%), encompassing multidisciplinary team composition, patient selection criteria, preoperative testing, and referral pathways. The agreement highlighted the critical role of comprehensive preoperative assessments and the integration of healthcare professionals in MBS. These findings offer essential insights to standardise perioperative practices and advocate for evidence-based guidelines in MBS globally. The study underscores the need for unified protocols to optimise outcomes and guide future research in MBS.