Search Results (195)

Obstructive sleep apnea (OSA) syndrome is a severe, debilitating, and pervasive sleep disorder. OSA mainly affects people with obesity, type 2 diabetes mellitus (T2DM), hypertension, and dyslipidemia and is strongly associated with cardiovascular complications. Based on the bidirectional relationship between T2DM and OSA, the latter represents a risk factor for the former, and, vice versa, people with T2DM have a high risk of OSA. Mechanical and hormonal factors, inflammatory mediators, and a dysregulated autonomic nervous system contribute to the mechanisms underlying the disease. Treatment of OSA is necessary even if the available remedies are not always effective. In addition to traditional treatments, including lifestyle adaptations and bariatric surgery, CPAP equipment, i.e., a breathing device ensuring continuous positive pressure to keep the airways open during sleep, represents the most common treatment tool. More recently, pharmacological research has paved the way to newer seemingly effective therapeutic strategies involving, in particular, two hypoglycemic agent classes, i.e., sodium–glucose co-transporter 2 inhibitors (SGLT2-is) and glucagon-like peptide-1 (GLP-1) receptor agonists (GLP1-ras). This narrative review provides an update on all of the above. Full article

Background: Esophageal achalasia is a rare motility disorder characterized by impaired lower esophageal sphincter (LES) relaxation and food stasis. Surgical interventions, including Heller myotomy with fundoplication or peroral endoscopic myotomy (POEM), effectively alleviate symptoms but induce significant anatomical and functional alterations. In various gastrointestinal surgeries, microbiota have been implicated in modulating clinical outcomes; however, their role in achalasia surgery remains unexplored. Methods: We performed a narrative literature search of various databases to identify studies exploring potential interactions between the gastroesophageal microbiota, achalasia pathophysiology, and surgical treatment, proposing clinical implications and future research avenues. Results: Chronic esophageal stasis in achalasia promotes local dysbiosis by facilitating aberrant bacterial colonization. Surgical restoration of esophageal motility and gastroesophageal transit induces substantial shifts in the microbial ecosystem. Analogous microbiota alterations following procedures such as fundoplication, gastrectomy, and bariatric surgery underscore the significant impact of mechanical modifications on microbial composition. Comprehensive microbiota profiling in patients with achalasia may enable the identification of dysbiotic phenotypes predisposed to complications, thereby providing personalized therapeutic interventions including probiotics, prebiotics, dietary modulation, or targeted antibiotic therapy. These insights hold promise for clinical benefits, including the mitigation of inflammation and infection, monitoring of surgical efficacy through microbial biomarkers, and optimization of postoperative nutritional strategies to reestablish microbial homeostasis, ultimately enhancing patient outcomes beyond conventional treatment paradigms. Conclusions: The gastroesophageal microbiota is a compelling mediator of surgical outcomes in achalasia. Future investigations integrating microbiological and inflammatory profiling are warranted to elucidate the functional role of the gastroesophageal microbiota and assess its potential as a biomarker and therapeutic target. Full article

Background/Objectives: Obstructive sleep apnea is a prevalent, yet often underdiagnosed, condition characterized by recurrent upper airway obstruction during sleep, leading to significant perioperative risks in surgical patients. This systematic review aims to evaluate the incidence and impact of objectively diagnosed obstructive sleep apnea on postoperative outcomes across various surgical specialties—including bariatric, orthopedic, cardiac, and otorhinolaryngologic surgeries—and to assess the effectiveness of preoperative screening and perioperative management strategies. Methods: A comprehensive literature search of PubMed was conducted for studies published between January 2013 and December 2024, following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Included studies involved adult surgical patients with OSA confirmed by polysomnography or respiratory polygraphy. Studies were assessed for methodological quality using the Oxford Centre for Evidence-Based Medicine Levels of Evidence framework. Results: The findings consistently indicated that obstructive sleep apnea significantly increases the risk of postoperative complications, such as respiratory depression, atrial fibrillation, acute kidney injury, delirium, and prolonged hospital stay. Continuous positive airway pressure therapy demonstrated a protective effect in bariatric and cardiac surgeries, though its effectiveness in orthopedic and otorhinolaryngologic contexts was inconsistent, largely due to adherence variability and limited implementation. Preoperative screening tools such as the STOP-BANG questionnaire were widely used, but their utility depended on integration with confirmatory diagnostics. Conclusions: Obstructive sleep apnea represents a significant, modifiable risk factor in surgical populations. Preoperative identification and risk-adapted perioperative management, including CPAP therapy and multimodal analgesia, may substantially reduce postoperative morbidity. However, further randomized trials and cost-effectiveness studies are needed to optimize care pathways and ensure consistent implementation across surgical disciplines. Full article

Obesity is a complex, diverse, and multifactorial disease that has become a significant public health concern. It is a modifiable risk factor for developing type 2 diabetes (T2D). The current classification systems rely on anthropometric measurements, such as body mass index (BMI), which cannot capture the physiopathological diversity of this disease. This study aimed to analyze the metabolic signatures of obesity and diabetes using ¹H-nuclear magnetic resonance (NMR). Obese patients with BMI ≥ 25 kg/m² (according to the Asian cut-off value) with different diabetes status scheduled to undergo metabolic-bariatric surgery at three hospitals were prospectively recruited for this study. Plasma samples of 111 obese patients and 26 healthy controls were analyzed by ¹H-NMR. When compared among groups with different diabetes statuses, four clusters with no differences in BMI but different metabolomics profiles were obtained. These clusters highlight intricate metabolic relationships associated with obesity and diabetes. This study demonstrated the benefits of using precision techniques like ¹H-NMR to better early detection, substantially decreasing the risk of developing T2D and its related complications. This study is the first to report on metabolic markers and altered metabolic profiles of T2D and prediabetes among obese Malaysians with a BMI cut-off value for the Asian population. Full article

Background/Objectives: Gallstone formation (cholelithiasis) is a common and important consequence following bariatric surgery, though regional data from the Northern Border Region are limited. This study aimed to investigate the incidence and risk factors of gallstones in this population, with the goal of optimizing postoperative treatment and reducing morbidity. Methods: We conducted a cross-sectional study using a non-probability convenience sampling technique to recruit 509 participants with varying degrees of obesity. Four hundred and ten study participants underwent bariatric surgery, of whom 73 were excluded for preoperative cholelithiasis and/or cholecystectomy. Data were collected through a self-administered, pre-validated questionnaire distributed via various social media platforms. These data included demographics, type/timing of surgery, pre/postoperative BMI, medical history, use of gallstone prophylaxis, and gallstone outcomes. Logistic regression analysis was used to identify independent predictors of gallstone formation. Results: Postoperative cholelithiasis developed in 60.8% of patients, most commonly within the first postoperative year, with risk peaking between 7 and 12 months after surgery. Rapid and substantial postoperative weight loss, as reflected in a lower current BMI and a transition to normal or overweight status within one year, was significantly associated with an increased incidence of gallstones. Female sex (OR: 2.62, 95% CI: 1.38–4.98, p = 0.003) and non-use of gallstone prevention medication (OR: 4.12, 95% CI: 1.34–12.64, p = 0.013) were independent predictors of gallstone formation. A longer time since surgery (OR: 0.76, 95% CI: 0.63–0.91, p = 0.004) and a lower current BMI (OR: 0.48, 95% CI: 0.28–0.83, p = 0.008) were associated with a reduced risk. Smoking status and comorbidities were not significantly related to the risk of gallstones. Conclusions: Gallstone formation after bariatric surgery in this population is influenced by female sex, rapid postoperative weight loss, and lack of prophylactic medication, while the type of surgical procedure does not significantly affect risk. Focused monitoring and preventive strategies, particularly in high-risk groups, are recommended to reduce gallstone-related complications following bariatric surgery. Full article

Background and Clinical Significance: Kidney transplantation remains the most effective method of renal replacement therapy. Living donor transplantation offers several advantages—reduced cardiovascular risk, better graft survival, and preemptive intervention. However, donor obesity is a growing concern, as it is usually associated with perioperative and long-term complications, which can affect donor eligibility. Bariatric surgery is a standard recommendation for patients with a BMI over 35 kg/m². There are limited data on the use of pharmacological agents for weight reduction in kidney donors. This case presents a successful conservative treatment with GLP-1 receptor agonist in an obese woman wishing to donate a kidney to her son. Case Presentation: We are presenting the case of a 63-year-old woman with grade II obesity who was initially denied being a kidney donor to her son because of her weight. Under these circumstances, she underwent comprehensive lifestyle modification in the cardio-obesitology clinic (caloric restriction, physical activity, and pharmacological treatment with liraglutide). During the 3-month follow-up, she decreased her BMI to 33.4 kg/m², and subsequent examinations confirmed no surgical contraindications to donating a kidney. Despite hematuria, biopsy and genetic testing revealed a benign carrier condition of Alport syndrome, which, without proteinuria or renal impairment, allowed successful kidney donation. Conclusions: This case demonstrates that conservative pharmacological treatment for body weight reduction with GLP-1 receptor agonists may be an alternative to bariatric surgery for selected obese kidney donor candidates. The presented case highlights the importance of a multidisciplinary and personalized approach. Full article

Background: The global rise in obesity rates has led to an increase in bariatric procedures, resulting in more patients needing relief from excess skin through body contouring surgeries (BCS), such as abdominoplasty. Although these procedures are generally considered safe, they can be associated with notable perioperative complications, including increased Hb-loss (hemoglobin loss) and drainage fluid volumes. Thus, this study analyzed risk factors for prolonged fluid secretion after abdominoplasty. Methods: We retrospectively analyzed 505 body contouring procedures performed between January 2018 and December 2023 at the Department of Plastic Surgery at the University Clinic of St. Poelten. The investigation focused on postoperative Hb-loss, drainage fluid volumes and hemoglobin levels in patients, comparing those with and without prior bariatric surgery. Statistical analyses utilized the t-test for Equality of Means, while correlation analyses were conducted using Spearman Rho and the Mann–Whitney U test. Results: Bariatric patients demonstrated markedly reduced hemoglobin levels both preoperatively (13.24 g/dL) and postoperatively (10.68 g/dL) compared to their non-bariatric counterparts (14.02 g/dL preoperatively and 11.71 g/dL postoperatively; p < 0.001). The prevalence of anemia was likewise substantially higher in the bariatric cohort, rising from 14.52% preoperatively to 82.48% postoperatively, versus 6.25% and 61.25%, respectively, in the non-bariatric group (p = 0.001). Moreover, prior bariatric surgery was significantly associated with increased postoperative drainage volume (p = 0.009) and prolonged operative time (p = 0.002). Notably, extended hospital stays exhibited a strong correlation with postoperative anemia (p = 0.005). Conclusions: Collectively, our findings underscore the potential risk of increased hemoglobin loss at BCS after bariatric weight loss. Tailored hemoglobin management and nutritional strategies are essential to improve the outcomes and safety of post-bariatric BCS. Meticulous preoperative identification of hematological discrepancies and adequate patient preparation are imperative for positive postoperative patient safety. Full article

Background: Obesity is associated with a reduced life expectancy of 5 to 20 years, depending on the severity of the condition and the presence of comorbidities. Beyond first- and second-line interventions such as lifestyle changes, pharmacotherapy, which includes appetite suppressants, drugs that reduce fat absorption or regulate neurohormonal pathways, and endoscopic procedures, bariatric surgery is currently considered one of the most effective long-term interventions for severe obesity. This exploratory study investigates the psychological functioning of bariatric surgery candidates in the preoperative phase, aiming to identify risk factors and potential predictors of response to surgery in an Italian sample. Methods: This is a retrospective, observational study with follow-up. Participants, evaluated between September 2021 and September 2022 at Messina University Hospital, were recontacted approximately one year after surgery for re-evaluation. Of the 97 initial patients, 33 agreed to complete online questionnaires for follow-up. Results: The baseline data showed no significant differences between men and women in psychological assessments. In the subgroup that completed the follow-up, significant changes were observed, including a reduction in BMI and an increase in the discomfort index (Body Uneasiness Test) post-surgery, with large effect sizes in both cases. However, despite these changes, the regression analysis revealed that preoperative BMI values were not directly related to postoperative body image difficulties. These findings suggest a limited psychological impact of bariatric surgery, emphasizing the need for tailored psychological interventions to address these issues. Conclusions: While the intervention confirmed its effectiveness in reducing BMI, improvements in psychological well-being were less pronounced. In particular, a significant increase in body image concerns (PSDI) emerged after surgery, suggesting the need to address body-related distress in post-surgical care. These findings may suggest multidisciplinary approaches that integrate physical and psychological interventions may be needed to maximise long-term benefits. Further research should explore strategies to enhance patient awareness of treatment options, body image issues, and potential complications. These results should be interpreted with caution considering the limitations associated with this study such as a small sample size, lack of a control group, and the use of self-report and online methods to gather data, among others. Full article

Background: Surgical complications are devastating both for patients and treating surgeons. When complications occur after bariatric procedures, due to specific characteristics of this population, management, although multidisciplinary, should always be led by a surgical team. Methods: We present major complications treated at our general surgery service over a seven-year period. Case series: We present five cases that were treated at our service after a bariatric procedure was performed. Two patients were operated on in another country and two more at another service. Three patients showed perforation and leak-related complications. One patient died due to refeeding syndrome complications after revisional surgery. Conclusions: Optimal preoperative evaluations and surgical planning are mandatory for any type of surgery including bariatric procedures, and attempting adequate and well-established surgical techniques extensively described in the medical literature is associated with better outcomes. It is also our understanding that easy channels of communication between patients and treating surgeons could avoid delays in detecting and treating life-threatening conditions. Full article

Background: Revisional bariatric surgery for recurrent weight gain is becoming more common, though it carries higher risks and may be less effective than primary bariatric surgery. This study compares clinical outcomes between primary and revisional duodenal switch (DS) in patients with a body mass index (BMI) > 55 kg/m². Methods: A retrospective cohort study was conducted on 20 patients who underwent either primary or revisional duodenal switch (DS) surgeries, including biliopancreatic diversion with duodenal switch (BPDDS) and Single-Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy (SADI-s), between January 2015 and December 2023. Revisional DS was defined as the conversion from Sleeve Gastrectomy (SG) to either BPDDS (C-BPDDS) or SADI-S (C-SADI-S). Perioperative and postoperative variables were analyzed. A statistical analysis was performed using chi-square and McNemar tests for categorical variables and Student’s t-test for continuous variables. A p-value of <0.05 was considered significant. Results: Eleven primary DS patients (six BPDDS, five SADI-s) and nine revisional DS patients (five C-BPDDS, four C-SADI-s) were included. The revisional group had a slightly higher preoperative BMI (57.56 ± 5.92 kg/m² vs. 55.93 kg/m² ± 6.91 kg/m²). Although operative times were shorter in the revisional group (153.20 ± 53.26 vs. 193.27 ± 46.79 min), the length of stay was longer (2.70 ± 1.25 vs. 2.18 ± 1.16 days). Primary DS patients experienced three minor late complications (dehydration, nephrolithiasis), whereas the revisional group had one major complication (internal hernia requiring reoperation). At the 12-month follow-up, both groups demonstrated similar outcomes in terms of percentage of total weight loss (%TWL) (primary DS: 25.25% ± 12.38 vs. revisional DS: 30.31% ± 10.79) and percentage of excess weight loss (%EWL) (primary DS: 48.41% ± 22.93 vs. revisional DS: 53.24% ± 14.48). Conclusions: Revisional DS was associated with shorter operation times and similar weight loss to primary DS. Additionally, it was accomplished safely and led to adequate and sustained weight loss in patients with a BMI greater than 55 kg/m². Full article

Background: Obesity is a complicated, chronic condition that has a major impact on reproductive health, leading to infertility, anovulation, and poor pregnancy outcomes. It alters the hypothalamic–pituitary–ovarian (HPO) axis, promotes insulin resistance, and causes persistent low-grade inflammation, all of which result in hormonal abnormalities that compromise normal ovarian function. Because standard weight loss procedures frequently fail to provide significant and long-term reproductive benefits, bariatric surgery is becoming increasingly popular as a therapeutic option for obese women trying to conceive. However, continuous research is being conducted to determine the degree of its advantages and potential hazards to fertility and pregnancy outcomes. Methods: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards and entered into the PROSPERO database. Comprehensive searches in the PubMed, Scopus, and Web of Science databases turned up relevant studies. Studies that examined the effects of bariatric surgery on female fertility, ovulatory function, pregnancy rates, and neonatal outcomes were considered. Methodological quality and risk of bias were evaluated using the Newcastle–Ottawa Scale (NOS) for observational studies and the Cochrane Risk of Bias Tool for randomized controlled trials. Results: This review comprised 34 studies. More than 75% of the studies analyzed showed improvements in ovulatory function, monthly regularity, or spontaneous pregnancy after bariatric surgery. Post-surgical pregnancies are related to a lower incidence of gestational diabetes, hypertension, and macrosomia. However, several studies raised concerns about nutritional inadequacies and the possibility of small-for-gestational-age newborns, particularly following Roux-en-Y gastric bypass. Studies suggest delaying conception for 12 to 18 months after surgery to reduce nutritional hazards and improve pregnancy outcomes. Variability in study design, follow-up duration, and surgical methods reduces the generalizability of findings, emphasizing the importance of uniform research protocols. Conclusions: Bariatric surgery is a highly effective treatment for increasing fertility and pregnancy outcomes in obese women, particularly those with PCOS. However, rigorous preconception planning, postoperative nutritional monitoring, and multidisciplinary follow-up are required to reduce the related hazards. Future research should concentrate on long-term reproductive outcomes, standardizing fertility assessment criteria, and improving clinical guidelines for managing post-bariatric pregnancies. These findings support the incorporation of bariatric surgery into fertility treatment regimens for obese women, and they may shape future revisions to clinical guidelines on reproductive care following weight loss surgery. Full article

Background: Preoperative nutritional interventions, including low-calorie diets (LCDs) and very low-calorie diets (VLCDs), are commonly implemented in metabolic and bariatric surgery. This systematic review and meta-analysis aimed to evaluate the efficacy and safety of preoperative dietary interventions in patients undergoing bariatric surgery, with primary outcomes including perioperative complications, operative time, and length of hospital stay. Methods: A systematic review and meta-analysis were conducted, including studies that compared LCD and VLCD with regular diets in adults undergoing bariatric surgery. The primary outcomes assessed were perioperative complications, operative time, and length of hospital stay. Random- and fixed effects models were used for quantitative synthesis. Risk of bias was evaluated using the Cochrane Risk of Bias tool and ROBINS-I, while the certainty of evidence was assessed using the GRADE approach. Results: Eight trials comprising 1197 patients were included in the meta-analysis. VLCDs were associated with a significant reduction in perioperative complications (OR 0.59; 95% CI: 0.37–0.94; p = 0.03), whereas LCDs showed no significant effect on complications (OR 1.64; 95% CI: 0.71–3.78; p = 0.25). No significant reduction in operative time was observed (MD −2.64 min; 95% CI: −6.01 to 0.73; p = 0.12). Hospital stay was slightly reduced (MD −0.17 days; p = 0.0001), though the clinical significance remains uncertain. The certainty of evidence was low, primarily due to the risk of bias and small sample sizes. Conclusions: VLCDs may lower the risk of perioperative complications, while LCDs do not appear to provide this benefit. However, the evidence is limited by methodological heterogeneity and low certainty. Further high-quality studies are needed to establish optimal preoperative nutritional protocols. Full article

Background: Tranexamic acid (TXA), an antifibrinolytic agent, has demonstrated efficacy in reducing bleeding across various surgical procedures. However, its role in bariatric surgery remains underexplored. This study aimed to evaluate the effectiveness of TXA in mitigating hidden blood loss following laparoscopic sleeve gastrectomy (SG). Methods: A single-center, single-blind, randomized, controlled trial was conducted at the University Clinical Center, Medical University of Gdańsk, Poland, between July 2022 and June 2023. A total of 238 patients undergoing SG were randomized to receive either TXA or no pharmacological intervention. The primary outcome was hemoglobin concentration in abdominal drainage post-surgery. Secondary outcomes included total blood loss, drainage volume, the need for blood transfusion, and postoperative complications. Statistical analyses were conducted using intention-to-treat and per-protocol strategies. Results: A statistically significant reduction in hemoglobin concentration in abdominal drainage samples was observed in the TXA group (p = 0.011). No significant differences were found in total blood loss, drainage volume, necessity for blood transfusions, or extended hospital stay between groups. Conclusions: While TXA administration may reduce the hidden blood loss effect, its general clinical significance appears questionable. Nonetheless, intraoperative TXA may be beneficial for a selected patient group with multiple preoperative disorders and risk factors. Further research is necessary to comprehensively assess the risks and benefits of TXA administration in bariatric surgery. Full article

Background: THA is a widely performed surgical procedure that improves mobility and quality of life in patients with hip joint diseases. The increasing prevalence of obesity has led to a rise in the number of patients undergoing THA following bariatric surgery. This study investigates trends in THA among patients with a history of bariatric surgery, comparing demographics, hospitalization metrics, post-operative complications, and overall surgical outcomes to those without such history. Methods: Using the NIS database (2016–2019), we analyzed a cohort of 1,496,809 THA patients, including 20,429 with a history of bariatric surgery. Propensity score matching was employed to control for confounding factors, resulting in a matched cohort of 20,429 patients in each group. Statistical analyses compared demographic characteristics, comorbidities, hospitalization outcomes, and post-operative complications, with a significance threshold of p < 0.05. Results: The proportion of THA patients with prior bariatric surgery increased significantly between 2016 and 2019 (p < 0.01). Compared to those without a history of bariatric surgery, these patients were younger (60.3 vs. 66.0 years, p < 0.01) and predominantly female (75.0% vs. 55.5%, p < 0.01). After PSM, patients with a history of bariatric surgery had a shorter hospital stay (2.17 vs. 2.37 days, p = 0.027) but incurred higher hospital charges ($63,631 vs. $62,883, p < 0.01). Post-operative complications were significantly higher in this group, with increased risks of hip dislocation (RR = 4.0, 95% CI: 3.4–4.8, p < 0.01), surgical site infection (RR = 2.0, 95% CI: 1.8–2.4, p < 0.01), pneumonia (RR = 2.5, 95% CI: 2.1–2.8, p < 0.01), and intraoperative fracture (RR = 1.6, 95% CI: 1.3–2.0, p < 0.01). Conclusions: The rising prevalence of THA in post-bariatric surgery patients highlights the need for optimized perioperative care. Despite shorter hospital stays, these patients face higher complication risks, requiring tailored management. Further research should explore alternative weight management strategies to improve outcomes. Full article

Obesity increases the risk of anovulation, insulin resistance, hyperandrogenism, and endometrial dysfunction, resulting in women with infertility and increasing preconceptional and pregnancy complications. Bariatric surgery has been described as the most effective intervention for obesity, with improved fertility outcomes. However, its invasive nature increases the potential of nutritional deficiencies and the need for a delayed conception post-surgery. On the other hand, pharmacological treatments such as glucagon-like-peptide 1 receptor agonists offer non-invasive alternatives with promising results in body weight, improving insulin sensitivity and restoring ovarian function. However, their use must be discontinued before conception due to potential fetal risks. Other available pharmacological treatment options encompass topiramate, phentermine, and Orlistat. The choice of treatment must be individualized considering cost-effectiveness, accessibility, obesity severity, reproductive goals, and associated risks within each patient. A multidisciplinary approach is essential to optimize metabolic and reproductive health in obesity and infertility. This review will examine the impact on metabolism when comparing surgical and pharmacological interventions for weight loss in women with infertility. Full article