bluuebunny/crossref_metadata_2025_split huggingface dataset:
IBC Oxford University Oral Abstract 16 - Video abstract: distalisation of Roux-en-Y gastric bypass for weight loss
Authors: Clapp B 
Published: February 2025

Abstract

Background
Insufficient weight loss or weight recurrence can occur in 15% of patients that undergo a Roux-en-Y gastric bypass (RYGB). Performing a distalisation and altering the length of the total alimentary limb length (TALL) can cause more weight loss.

Methods
This video discusses the types of distalisation of a RYGB and outcomes. It highlights the technical aspects of the surgery.

Results
A robotic distalisation is performed on a patient that had weight recurrence after a RYGB. The TALL was changed to 400 cm.

Conclusion
Decreasing the TALL is an effective method to combat weight recurrence after RYGB. Surgeons should be careful to not cause malnutrition and closely follow these patients.
IBC Oxford University Oral Abstract 18 - Video abstract: LAGB to RYGB to open proximalisation to LSG to manage severe dumping syndrome
Authors: Abdelsalam A , Ghobashy A , Elhaway R , Magdy M 
Published: February 2025

Abstract

Introduction
Revisional bariatric surgery is performed to repair a previous weight-loss surgery. It might be appropriate if there is less-than-optimal weight loss, weight gain, or both. There are complications from the original procedure. Complications include ulcers, pouch enlargement, reflux, or an unsatisfactory lifestyle. Revisional surgeries are often more complex than initial bariatric surgeries; thus, they need skilled professional surgeons for better evaluation of the condition, reviewing of the case, determination of causes of failure of the previous procedure, and putting in place the most appropriate management plan to achieve the best outcome.

Objectives
We present here a case of a 56-year-old gentleman known to have uncontrolled diabetes mellitus, hypertension, osteoarthritis, and dyspnoea grade 3. The patient has morbid obesity with a starting weight of 160 kg (BMI ∼56.7 kg/m2) and underwent an adjustable gastric band with weight gain reaching 189 kg in 4 years with no improvement in diabetic status. The patient went for RYGB as a revisional surgery after the removal of the band with good weight loss and better control of the diabetic status, but the patient developed severe attacks of dumping symptoms that failed to improve with medical treatment, lifestyle modification, and even after open proximal alimentary diversion surgery. The patient presented to our facility with 134 kg (BMI ∼47.5 kg/m2) and underwent laparoscopic conversion RYGB to sleeve gastrectomy.

Methods
Laboratory and imaging investigations were done, including MSCT gastric volumetry, which revealed a gastric pouch size of 50–75 cm with a hiatus hernia. Laparoscopic sleeve gastrectomy was done after resection of the gastrojejunostomy part, anastomosis between the alimentary and biliopancreatic limbs as a restoration of GI continuity and dismantling of the previous jejunojejunostomy.

Results
The patient was discharged POD2, following uneventful recovery on clear fluids, full fluids, a soft diet, and a regular diet, each for 5 days, respectively. The patient was put on a nutritional plan, including a diet plan, supplements, and multivitamins. Follow-up monthly revealed significant improvement in the dumping symptoms, improvement of the diabetic status, and relative improvement in weight loss (109 kg, BMI∼38.6 kg/m2).

Conclusion
LSG after RYGB is a tedious procedure, with only a few cases found in the literature.
IBC Oxford University Oral Abstract 19 - Video abstract: disaster in MGB-OAGB—lessons learned
Authors: Hassan M Ul , Bhatti S , Ashraf M H 
Published: February 2025

Abstract

Introduction
While One Anastomosis Gastric Bypass (OAGB) has proven to be an effective surgical treatment for obesity, a significant number of patients experience excessive weight loss, leading to malnutrition and related complications. Rapid and excessive weight loss can result in protein-energy malnutrition, vitamin and mineral deficiencies, and dehydration, which can have severe consequences on overall health and quality of life.

Case Presentation
We present a case of management of a patient who had severe weight loss and its consequences after OAGB. He is a 55-year-old male who presented with the complaint of severe retrosternal burning, pain, nausea and increased frequency of stools. He gave a history of more than 70 kg weight loss 6 months after OAGB done at another institution. On careful evaluation he had severe malnutrition indicated by severe hypoproteinaemia and hypoalbuminemia. After careful discussion with the patient, we decided to do a diagnostic laparoscopy with a plan to reverse the OAGB and normalise the anatomy by gastro-gastric anastomosis. Intraoperative findings showed a biliopancreatic limb length of 400 cm and common channel length of just 100 cm. Moreover, the gastrojejunostomy was done in an anti-peristaltic manner. We reversed the gastrojejunostomy and did a gastro-gastric anastomosis. The operation was uneventful, and the patient recovered well.

Conclusion
OAGB is a safe procedure in expert hands. This case shows the difficulty of surgery done by inexperienced surgeons but was managed by bypass reversal.
IBC Oxford University Oral Abstract 27 - Single anastomosis sleeve ileal (SASI) bypass versus single anastomosis sleeve jejunal (SAS-J) bypass: one year follow-up
Authors: Sewefy A M 
Published: February 2025

Abstract

Background
Single anastomosis sleeve ileal (SASI) bypass is a modification of Santoro's operation (sleeve gastrectomy with transit bipartition) which is a bypass weight loss surgery but keeps the tnormal food pathway and allow endoscopic examination. The procedure is rapidly modified to single anastomosis sleeve jejunal (SAS-J) bypass to minimize the nutritional deficiency. The study aimed to compare SASI to SAS-J bypass.

Material and Methods
This was a randomized controlled trial that included 180 patients. Patients were randomly assigned to 2 equal groups: Group 1, was operated with SASI bypass while Group 2 was operated with SAS-J bypass. All cases were followed up for one year.

Results
In this study, 63% of patients were female and 37% were male. The mean body mass index (BMI) was 47.6 kg/m2. The mean age was 37 years. Regarding comorbidities, 23.3% of the patients had type 2 diabetes, 19% were hypertensive, 19% had obstructive sleep apnoea syndrome, 16% had gastroesophageal reflux disease (GERD), and 26% had hyperlipidaemia. %EWL at one year was 94.7 in Group 1 versus 91.3 in Group 2. Regarding late complications.
Biliary gastritis occurred in 4.4% Group 1 versus 7.8% in Group 2.
Diarrhoea occurred in 21.1% Group 1 versus 7.8% in Group 2.
Protein malnutrition occurred in 15.6% Group 1 versus 4.4% Group 2.
Vitamin D deficiency occurred in 14.4% in Group 1 versus 11.1% in Group 2.
Hypocalcaemia occurred in 12.2% in Group 1 versus 5.6% in Group 2.
Anaemia occurred in 14.4% in Group 1 versus 4.4% in group 2.
The incidence of excessive weight loss (EWL) was 20% in Group 1 versus 7.8% in Group 2. The rate of reoperation was11.1% in group 1 versus 3.3% in Group 2.

Conclusions
Laparoscopic SAS-J bypass is an effective metabolic and weight loss surgery with less nutritional deficiency and late complications compared to SASI bypass.
IBC Oxford University Oral Abstract 30 - Laparoscopic single anastomosis duodeno–ileal bypass (SADI) versus one anastomosis gastric bypass (OAGB) as revisional procedures after sleeve gastrectomy: meta-analysis and systematic review
Authors: Ahmed Y , Ataya K , Almubarak I , Almubarak A , Ali M , Yusuf W , Aljaafreh A , Simeonovski S , Yang W 
Published: February 2025

Abstract

Introduction
It has been observed that 5–8% of primary bariatric procedures result in treatment failure, necessitating the need for revisional surgery. Single anastomosis duodeno-ileal bypass (SADI) and one anastomosis gastric bypass (OAGB) have been suggested as technically less complex but equally efficient substitutes for the Roux-en-Y procedures. In this systematic review and meta-analysis, our aim is to compare the effectiveness of SADI and OAGB in addressing weight regain following sleeve gastrectomy.

Methods
We systematically searched PubMed, Scopus, Web of Science and Cochrane Central Register of Controlled Trials databases. Studies were considered eligible if compared SADI with OAGB as revisional surgeries following sleeve gastrectomy. Weight loss parameters included total weight loss percentage (TWL%) and excess weight loss percentage (EWL%).

Results
Our search strategy yielded 4 articles with a total of 309 patients. 151 patients were assigned to SADI group, on the other hand 158 patients were assigned to OAGB group. For weight loss parameters comparing both procedures at 1 year, the results were in favor of SADI with an EWL% (95% c.i. 3.90 to 17.66; P &lt; 0.01) and a TWL% (95% c.i. 2.43 to 6.17; P &lt; 0.01). At 2 years of follow-up EWL% did not show a statistically significant difference between both operations (95% c.i. −1.18 to 25.86; P = 0.07). In contrast, TWL% was significantly higher in SADI compared to OAGB (95% c.i. 0.96 to 9.68; P = 0.02) at 2 years of follow-up. Regarding post-operative bile reflux, OAGB group had a significantly higher incidence of biliary reflux (OR 0.15; 95% c.i. 0.04 to 0.53; P = 0.003). Patients enrolled in SADI did not develop anastomotic ulcers according to the 4 studies included in the analysis. In contrast, 7 patients in OAGB group did develop anastomotic ulcers but the difference was not statistically significant (OR 0.23; 95% c.i. 0.05 to 1.10; P = 0.07).

Conclusion
SADI is a feasible procedure with a favorable outcome compared to OAGB as a revisional surgery following sleeve gastrectomy regarding weight loss at 1 year with a lower incidence of post-operative biliary reflux.
IBC Oxford University Oral Abstract 39 - Use of PSDV-SG in robotic sleeve gastrectomy is safe and effective
Authors: Hill R , Hill R , Hobson L , Johnson S 
Published: February 2025

Abstract

Introduction
Despite the reliability and safety of the current generation of surgical staplers, staple line complications can still occur and may result in significant morbidity and mortality. While the incidence of haemorrhage and leak is relatively low (1–6% for bleeding, 1–6% for leakage) the results can have serious implications for the patient and high costs for the facility. The Peri-Strips Dry Staple Line Reinforcement with Veritas Collagen Matrix is derived from bovine pericardium to produce a non-crosslinked collagen matrix that has been shown to reduce the risk of staple line bleeding and leaks. In 2019, the FDA approved Peri-Strips Dry Staple Line Reinforcement with Veritas Collagen Matrix with Secure Grip Technology (PSDV-SG). This new product may allow for greater ease of use and reduced preparation time. The aim of this study is to demonstrate that buttressing with PSDV-SG will reduce staple line complications in robotic sleeve gastrectomy and is safe and effective.

Methods
We conducted a retrospective study of 60 patients who underwent robotic-assisted sleeve gastrectomy with buttressing using PSDV-SG between May 2020 and May 2022 at a single institution. We evaluated the patients' charts for post-operative leak rates, presence of staple line bleeding, blood transfusions, re-admission rates, and mortality.

Results
A total of 60 patients were identified, with a 100% follow-up rate within 1 month and 91% follow-up rate over a period of 3–6 months. The majority of the patients were female and from underrepresented minority populations. There were no cases of postoperative leaks or staple line bleeding, and no patients required blood transfusions. One patient was readmitted due to nausea and vomiting, and there were no instances of reoperation or mortality in the study.

Conclusion
Safety and precision of stapling devices in bariatric surgery is crucial to avoid staple line complications which are associated with increased morbidity, mortality and costs. PSDV-SG is a product that is made from the same biologic material as PSDV but is applied to the surgical stapler via a pressure-sensitive adhesive strip which is time-saving and efficient. Our study demonstrated that the application of PSDV-SG is safe and effective in patients undergoing robotic sleeve gastrectomy.
IBC Oxford University Oral Abstract 49 - AI-assisted surgical fellowship training assessment through laparoscopic sleeve gastrectomy video analytics
Authors: Moreno D , Cardenas V , Ortiz A , Martinez A , Acosta H 
Published: February 2025

Abstract

Background
The advent of artificial intelligence (AI) in surgical training presents a transformative opportunity to enhance the assessment and education of surgical fellows. This study investigates the application of AI in evaluating the performance of surgeons by analyzing videos of laparoscopic sleeve gastrectomy procedures uploaded to a specialized platform, Surgeryview.ai.

Methods
Three surgeons contributed to this study: two were professor bariatric surgeons and one was a fellow bariatric surgeon in training. A total of 466 videos of gastric sleeve surgeries were analyzed. Of these, 413 videos were performed by the professor surgeons (Surgeon 1: 180, Surgeon 2: 233) between September 2022 and May 2024, and 53 surgeries were performed by the fellow surgeon in training over a period of 10 months (August 2023–May 2024). The analyzed videos were chosen randomly, and any surgeries Involving an additional procedure to the gastric sleeve (for example hiatal hernia repair) were excluded. Patient data, including gender, age, and initial BMI, were recorded, ensuring anonymity.

Results
The AI platform provided comprehensive longitudinal analytics, detailing the time taken to complete each surgical step: access to the abdominal cavity, greater curvature dissection, stapling, specimen removal, oversewing, and leak test. The platform also analyzed the impact of patient demographics on surgery time. Professors showed consistent efficiency, while fellows demonstrated significant improvement over time. Notably, surgery duration was influenced by patient-specific factors such as BMI and age. The fellow bariatric surgeon in training showed significant improvement across all metrics over the trimesters, with overall surgery time reduced by approximately 23.83%, greater curvature dissection (step 2) time by 28.37%, and oversuture of the staple line (step 5) time by 28.74%. When broken down by BMI, age, and gender, indicate that improvements are generally consistent across these variables, with the most significant improvements seen in lower BMI and younger age groups. These advancements indicate that the fellow has substantially closed the performance gap, particularly in the critical surgical steps.

Conclusion
AI assisted platforms like Surgeryview.ai offer valuable insights into surgical performance, enabling objective assessment and personalized feedback for fellows. This technology can enhance surgical training programs by identifying specific areas for improvement and tracking progress over time, ultimately aiming to standardize surgical education and improve patient outcomes.
IBC Oxford University Poster Abstract 2 - Duodenal-ileal self-forming magnetic anastomosis in patients with inadequate weight loss or weight regain following sleeve gastrectomy
Authors: Contreras J E , Marín P , Guerra A , Mellafe M E , Darvich Í 
Published: February 2025

Abstract

Background
Magnetic anastomosis has the potential to reduce anastomosis complications such as leaks and bleeding, as well as reduce complex procedure steps and time to create a safe anastomosis. We report the procedure feasibility and 30-day results of a new surgical technique and new self-forming nitinol magnetic anastomosis procedure (SNAP-PS) and delivery devices on post-sleeve gastrectomy patients.

Methods
Prospective non-randomized single-centre trial. Surgery consisted of creating a side-to-side duodenal-ileal anastomosis 300 cm from the IC valve using a new self-forming magnetic (SFM) octagonal anastomosis. The proximal SFM was deployed through the endoscope, and the distal SFM through a 5 mm laparoscopic trocar.

Results
A total of 3 patients were recruited, with a mean age of 36.3 25–42) years, sex-ratio (100% F) of 100%, and initial BMI of 41.0 ± 1.4 kg/m2. All procedures were performed using a combination of endoscopy and laparoscopy. There was no conversion or peri-operative mortality. All SFMs were delivered and connected with no delivery malfunctions and completed in an anastomosis creation time on average of 30.6 minutes (enterotomy to magnet coupling). 0 procedure adverse events (AE) occurred, and 0 AD occurred during the 30-day follow-up period. All patients tolerated the surgery and were discharged within 24 hours.

Conclusion
Preliminary and procedural feasibility data for these new devices suggest that SNAP-PS is feasible and safe. Based on prior studies, it provides a minimally invasive surgical option for patients needing additional weight loss and improved comorbidities. Additional follow-up is required.
IBC Oxford University Poster Abstract 9 - Laparoscopic sleeve gastrectomy for endoscopic sleeve gastroplasty non-responder
Authors: Al Haifi M , Hassan I 
Published: February 2025

Abstract

Background
Endoscopic Sleeve Gastroplasty (ESG)is an endoscopic minimally invasive weight loss procedure based on full thickness endoscopic suturing using Apollo’s Overstitch device. In ESG procedure a series of sutures are placed through the gastric wall reducing the stomach volume by 80% creating a restrictive endoscopic sleeve.

Case Presentation
Our case is a 32-year-old lady with a BMI 35.5 kg/m2 had a history of ESG on 1/2018, presented to our clinic with stationary weight following losing only eight kgs during the first month after the procedure. Following full preoperative assessment including dietary history and psychiatric assessment the patient was counselled for Laparoscopic Sleeve Gastrectomy (LSG). Preoperative gastroscope was done to rule out any gastric inflammations and to confirm that all endoscopic stitches are away from the expected 36 fr bougie tube. LSG was done smoothly using 4 reloads (3 black and 1 green) with staple line plication using vicryl 2/0 sutures and omental patching. Hiatal hernia was repaired with mattress silk sutures, gastric fundus was fixed to left crus with vicryl 2/0 sutures and antrum was fixed to the peripancreatic fascia. All these measures were done to avoid gastric pouch twist or migration. Postoperative recovery was smooth. Weight loss was satisfactory, BMI reached 27.5 at 11 months post LSG.

Conclusion
ESG can be reversed easily to LSG for procedure non responders.
IBC Oxford University Poster Abstract 21 - OverStitch procedure- can this be an alternative to revisional surgery?
Authors: Haider I , Kaur M , Raslan C , Barua B , Javed S , Stewart D , Darrien J , Almerie Q , Kerrigan D 
Published: February 2025

Abstract

Introduction
OverStitch is an endoscopic procedure. It is done under general anaesthesia as a day case procedure. It is an alternative procedure for gastrojejunal anastomosis (GJA) dilatation post bypass procedure. Wide GAJ is associated with reactive hypoglycaemia, dumping, weight regain and inadequate weight-loss.

Materials and Methods
Our data from OverStitch procedure was analysed using SPSS software. We compared the results available in literature to outcomes from revision RYGB. We also look at the size of the GJA and the size of GJA after placing the stitch and its association with resolution of symptoms. All the patients who underwent OverStitch procedure were included in the study.

Results and Outcomes
Patients underwent OverStitch procedure for hypoglycaemia, dumping and weight-regain. Our results from OverStitch procedures about hypoglycaemia and dumping gave about 90% resolution of symptoms. The results from weight regain were modest. Further analyses suggested the underlying eating disorders in this group of patients.

Conclusion
OverStitch procedure can be a suitable alternative to revision RYGB Larger numbers of patients are needed for statistically significant results.
Deeper affection, more consumptions: consumer decision-making among people with different levels of intimacy—evidence from fNIRS
Authors: Zhang Chenyu , Liu Jingyue , Zhong Yifei , Zhang Ye , Meng Yujia , Huang Rui , Wang He , Liu Yingjie 
Published: February 2025

Abstract
Consumer decision-making varies according to an individual’s relationship with the recipient of the gift. This study used a mock purchase task to investigate consumer decision-making and its underlying neurological mechanisms when purchasing gifts of different prices for recipients with varying levels of intimacy. Functional near-infrared spectroscopy was used to record neural activity during the task. Behavioral results found that the lover group had a much higher purchasing rate than the friend group, particularly when acquiring premium products. Analysis of the functional near-infrared spectroscopy data found that neural activity in the dorsolateral prefrontal cortex and orbitofrontal cortex decreased when items were discounted, with lower activation in the dorsolateral prefrontal cortex in lovers during the purchasing of premium products. Furthermore, we identified significant differences in functional connectivity between the dorsolateral prefrontal cortex and orbitofrontal cortex under different conditions. We compared the support vector machine algorithm and logistic regression, finding that logistic regression better predicts purchasing tendencies based on neuroactivation levels. In our view, a stronger emotional connection leads to a more rewarding experience for consumers when buying premium products. This study reveals the impact of intimate relationships on consumer decision-making and provides guidance for businesses in developing marketing strategies targeted at the lover’s market.
Glutamate uptake is transiently compromised in the perilesional cortex following controlled cortical impact
Authors: Garcia Jacqueline P , Armbruster Moritz , Sommer Mary , Nunez-Beringer Aliana , Dulla Chris G 
Published: February 2025

Abstract
Glutamate, the primary excitatory neurotransmitter in the central nervous system (CNS), is regulated by the excitatory amino acid transporters glutamate transporter 1 (GLT-1) and glutamate aspartate transporter (GLAST). Following traumatic brain injury, extracellular glutamate levels increase, contributing to excitotoxicity, circuit dysfunction, and morbidity. Increased neuronal glutamate release and compromised astrocyte-mediated uptake contribute to elevated glutamate, but the mechanistic and spatiotemporal underpinnings of these changes are not well established. Using the controlled cortical impact model of TBI and iGluSnFR glutamate imaging, we quantified extracellular glutamate dynamics after injury. Three days postinjury, glutamate release was increased, and glutamate uptake and GLT-1 expression were reduced. Seven and 14 days postinjury, glutamate dynamics were comparable between sham and controlled cortical impact animals. Changes in peak glutamate response were unique to specific cortical layers and proximity to injury. This was likely driven by increases in glutamate release, which was spatially heterogeneous, rather than reduced uptake, which was spatially uniform. The astrocyte K+ channel, Kir4.1, regulates activity-dependent slowing of glutamate uptake. Surprisingly, Kir4.1 was unchanged after controlled cortical impact and accordingly, activity-dependent slowing of glutamate uptake was unaltered. This dynamic glutamate dysregulation after traumatic brain injury underscores a brief period in which disrupted glutamate uptake may contribute to dysfunction and highlights a potential therapeutic window to restore glutamate homeostasis.