bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis, optical and photocatalysis property of corn-like ZnO/ZnS heterojunction with a certain lattice defects
Authors: Yang Lei , Zhou Lifang , Hong Chunshui , Zhu Wencai , Zhao Shihua 
Published: December 2023

In order to greatly improve the photocatalytic properties, corn-like ZnO/ZnS heterojunctions with a particle size of about 60–71 nm have been synthesized by the solvothermal method and the subsequent sulfuration process. A declining trend is found for the specific surface area with increasing sulfuration time. The corn-like ZnO/ZnS heterojunctions exhibit good photocatalytic properties. With increasing sulfuration time, the degradation rate increases first and then decreases. The best degradation rate is observed for the heterojunction sulfurated for 90 min. The strong broad luminescence band is extremely beneficial to the absorption of visible light by multiphoton process. In addition, the energy transfer from ZnS to ZnO contributes to charge separation, forming a type-II heterojunction mechanism. After one cycle of photocatalytic process, except that corns become more broken, variation of particle size and shape is very small. The degradation speed of RhB after a second cycle of photocatalytic process is slower than the first one except when using the sample sulfurated for 360 min.
Status and prospects of the PandaX-III experiment
Authors: Zhang W. , Lin H. , Liu Y. , Han K. , Ni K. , Wang S. , Zhai W. ,   the PandaX-III collaboration
Published: December 2023

Abstract
The PandaX-III experiment searches for neutrinoless double beta decay of 136Xe with a high-pressure xenon gaseous time projection chamber (TPC). Thermal-bonding Micromegas modules are used for charge collection. Benefitting from the excellent energy resolution and imaging capability, the background rate can be significantly suppressed through the topological information of events. The technology is successfully demonstrated by a prototype detector. The final detector has been constructed. In this paper, we will report the status of the PandaX-III experiment, including the construction and commissioning of the final detector, and the Micromegas-based TPC performance test in the prototype detector.
IBC-Oxford University2023_BJSOral_1Dynamic Magnetic Resonance Imaging (Dy-MRI) Evaluation of the Impact of Endoscopic Sleeve Gastroplasty (ESG) on Gastric Structure and Function in Morbid Obese Patients
Authors: Quero G , Fiorillo C , Reitano E , Berardo A , Toniolo I , Riva P , Marescaux J , Perretta S 
Published: December 2023

Abstract

Introduction
Endoscopic sleeve gastroplasty (ESG) is a restrictive endoluminal bariatric procedure consisting in the application of multiple full-thickness sutures to reduce gastric capacity (GC) and slow down gastric emptying (GE). Although results are promising, a large variation in the weight loss outcomes is reported. Dynamic resonance imaging (Dy-MRI) has been successfully applied for the assessment and analysis of gastrointestinal (GI) function. It permits to acquire large field-of-view, dynamic, high- resolution, three-dimensional (3D) image data with excellent soft-tissue contrast in less than a second3. In addition, our group previously demonstrated a significant correlation between weight loss and gastric anatomy changes assessed by Dy-MRI in laparoscopic sleeve gastrectomy (LSG) patients. The aim of this study is to use Dy-MRI to objectively assess gastric structural and functional changes 6 months after ESG and their impact on weight loss.

Material and methods
Prospective single centre study. Patients underwent preoperative and postoperative (after 6 months) Dy-MRI to evaluate total GC and GE changes, immediately after the ingestion of 400 ml of liquid meal and over time up to 120 minutes after ingestion (T120). Only patients with a complete follow up at and 6 months (M6) were included. Demographic data, pre- and intra-operative data, and weight loss outcomes were collected. Continuous variables were reported as median and interquartile rank (IQR), while categorical variables as numbers and percentages.

Results
From July 2021 to June 2023, 16 ESG patients participated in this study. Patients had a median age of 41.5 years (IQR:35-49.7) with a median BMI (kg/m2) of 36.9 (IQR: 34.08-42.18). A median number of 6 (IQR: 5.2-6) purse string sutures were placed during the ESG. There were no complications. At the follow-up gastroscopy at M6 all patients presented an intact ESG with all the suture still present. Dy- MRI showed a median GC reduction of 34.1% of the initial volume (p&lt;0.0001) and GE decreased by 0.43 mL/min (p=0.01). As a whole, the study population had a 16.8% of total weight loss (TWL) at M6 (p&lt;0.0001). Similarly, the median BMI decreased from 36.9 to 29.9 (p=0.01). %TWL varied from 15.5 at M3 to 18.3 at M6. During the same time-elapse, %EWL increased from 46.4 to 57.1.

Discussion and Conclusion
Dy- MRI is confirmed to be a non-invasive method capable of objectively quantify gastric volume reduction and GE changes after ESG. It is likely that these two factors play a synergic role in the weight loss journey of patients undergoing ESG. Further investigations in a larger sample are needed to support these initial findings and to support an evidence based, patient specific approach to endoscopic gastric remodelling.
IBC-Oxford University2023_BJSOral_4Comparison Between Two Different Intragastric Balloon Intervention in Terms of Weight- Loss, Tolerance, and Complications
Authors: Jamal M , Dsouza C , Al-Hamshari F , Al-Hassani S , Al-Kanawati N 
Published: December 2023

Abstract

Introduction
Obesity and its complications have been rising worldwide. Several interventions are available including lifestyle intervention, drug therapy, devices such as intragastric balloon (IGB), and metabolic surgery. This study focuses on two intragastric balloon (IGB) -The Orbera365 and Elipse in terms of weight loss, tolerance, and complications.

Methods
We performed a retrospective before and after study on patients who underwent IGB intervention in the period between July 2020–November 2021. Data on weight loss, tolerance and complications were recorded from patient’s files.

Results
A total of 311 patients underwent Elipse intervention and 107 underwent Orbera365 intervention. The average weight and BMI prior to Elipse were 94.7±19.1 kgs and 35.2±5.5 kg/m2 and Orbera365 was 94.6±19.1 kgs and 35.4±3.9 kg/m2. The average weight and BMI decreased significantly in four months post-Elipse and was 83.7±17.4 kgs and 31.3±4.8 kg/m2 while in 12-months post Orbera365, it was 79.8±15.5 kgs and 30.1±4.1 kg/m2. Moreover, maximum weight loss is achieved in the 4-6 months of balloon intervention, which continues at reduced rate till the end of the term. Intolerance rate was higher in Orbera365 (6.5%) as compared to Elipse (2.6 %).

Conclusion
IGB is effective in terms of weight reduction for short term with acceptable rate of complications and intolerance, however weight regain is observed after IGB removal.
IBC-Oxford University2023_BJSOral_15Conversion of Sleeve Gastrectomy to Roux-en-Y Gastric Bypass: Indications, Management and Results
Authors: Crozet J , Robert M 
Published: December 2023

Abstract

Introduction
Sleeve gastrectomy (SG) represents more than 60% of bariatric procedures worldwide. Conversion of SG to Roux-en-Y gastric bypass (RYGB) for weight loss failure (WLF) or gastro-oesophageal reflux disease (GERD) is increasing. Intrathoracic migration of the sleeve often seems associated.

Aim
The aim of our study was to analyse the relevance of the indications, the prevalence of an associated de novo hiatal hernia, and the outcomes of the conversion of SG to RYGB.

Methods
This is a retrospective study of prospectively collected data including all the patients who underwent a conversion of SG to RYGB from August 2013 to December 2022. 2 groups were compared: patients operated on because of weight loss failure (WLF group) and those operated on for GERD (GERD group).

Results
We analysed in both groups demographic data, the incidence of an associated hiatal hernia, morbidity, weight loss outcomes and resolution of symptoms. 59 patients were included with an average follow-up of 30.5 months: 46 patients in the GERD group (78%) were compared to 13 patients (22%) in the WLF group. Groups were comparable regarding age (47) and gender (women: 74%); BMI at conversion and prevalence of comorbidities were significantly higher in the WLF group (41.8 kg/m² vs 33.3, p=0.0001). In the GERD group: on preoperative gastroscopy, 30% (14/46) had a grade B esophagitis, 48% (22/46) had a significant hiatal hernia which required a posterior crural closure versus 23% (3/13) in the WLF group, not requiring a surgical treatment (p = 0.02). Conversion was very effective on GERD symptoms (93% of improvement), 52% of the patients stopped proton pump inhibitor treatment. In the WLF group, mean percentage total weight loss (% TWL) was 15.3%, significantly greater than in the GERD group (% TWL=4.6%, p = 0.01). The complication rate was 10% at 30 days and 3.4% after 30 days, not significantly different between groups (p = 1 and 1 respectively).

Conclusions
The main indication of conversion of SG to RYGB was because of GERD: in these indications, the incidence of intrathoracic migration of the sleeve is high requiring a surgical treatment with a very good efficacy on resolution of symptoms. Weight loss results were disappointing.
IBC-Oxford University2023_BJSOral_17The Endoscopic Sleeve Megaplication (ESM): Preliminary Results of a Modification of a Standard Procedure to Reduce the Cost with Maintaining the Effectiveness. A six-month follow-up.
Authors: Turro R , Ortega A , Uchima H , Mata A , Rosinach M , Andres S , Vila A , Vergara H , Espinós J 
Published: December 2023

Abstract

Aims
The cost of POSE 2.0 is very high, being one of the limitations of the accessibility of this procedure. The Endoscopic Sleeve Megaplication (ESM) procedure involves a novel pattern of full-thickness gastric body plications to shorten and narrow the stomach using the IOP platform (USGI Medical, San Clemente, CA) and durable suture anchor pairs g-Cath and two g-Lix simultaneously to achieve larger folds, reducing the number of sutures per procedure. Our prospective trial examined the safety and durability of ESM in adults with obesity grade I and II.

Methods
Adults suffering obesity underwent ESM in our centre. A single line of double plications in the greater curvature from incisura till 3-4 cm from gastro-oesophageal junction, single plications were placed in distal body anterior and posterior walls to close the diameter of the distal body under 10 mm. Primary outcomes were safety, durability of plications at 3-, 6-, 12- and 24-month follow-up and the cost effectiveness of the technique. Safety will be determined by the incidence of any serious adverse events reported either by the subject or observed by the investigator, relating to the procedure either peri-procedurally or in the follow-up period. All adverse events will be documented. Secondary outcomes were total body weight loss (%TBWL), proportion of patients achieving &gt; 5% TBWL at 12 months and reduction of the cost of the procedure compared to standard POSE 2.0 technique, based on the average number of plications placed.

Results
13 patients (7F, age 45 ± 9.9 years) underwent ESM between February 2022 to September 2022. Baseline BMI was 37.2 ± 3.1 kg/m2. Technical success was 100%. An average of 10 ± 2 suture anchor pairs were placed in each case. At six months, patients (n=13) achieved a 16.1 ± 3.9 % total weight loss (%TWL), with 84,61 % achieving more than 10 % TWL. Blood test results, state that insulin resistance and liver enzymes improved. No serious adverse events were reported. The reduction of an average of 8 plications compared to the standard POSE 2.0 pattern brings a significant reduction of the cost of the procedure.

Conclusions
ESM procedure happens to be effective for treating obesity and its related comorbidities. It is a safe, durable and a cost-effective procedure however, it is necessary to complete a long-term follow-up and carry out studies with larger samples to proclaim those benefits.
IBC-Oxford University2023_BJSOral_20Video Presentation: Fundectomy and Indocyanine green fluorescence angiography in revisional laparoscopic Roux-en-Y gastric bypass
Authors: Latif J , Awan A 
Published: December 2023

Abstract

Introduction
Revisional bariatric procedures are increasingly prevalent. These procedures are more complex with higher risk of complications as compared to primary procedures. The potential indications for revisional laparoscopic gastric bypass (R-LRYGB) may include weight regain and gastroesophageal reflux disease (GORD). This video abstract presents role of fundectomy and Indocyanine green fluorescence angiography (ICG-FA) for perfusion assessment of gastric pouch in R-LRYGB.

Methods and Operative technique
A 40-year-old female with previous laparoscopic adjustable gastric band (LAGB) surgery underwent R-LRYGB procedure following approval at bariatric multidisciplinary team meeting. LAGB was removed due to band slippage and chronic pouch dilatation, 2 years prior to the revisional procedure. Preoperative BMI was 53 kg/m2. Pre-operative upper gastrointestinal endoscopy was normal. The operative technique included dissection of angle of His, access into lesser sac along lesser curve below 2nd vessel off left gastric artery (LGA) and division of short gastric vessels to gain access to leaser sac from lateral aspect. The stomach was divided horizontally with linear stapler (EndoGIA 60 Gold cartridge), level with second vessel off LGA followed by creation of vertical gastric pouch over a size 34 Oro-gastric tube, that included excision of gastric fundus. ICG was administered intravenously according to an agreed protocol for the study. Karl Storz Image1 STM Rubina system with overlay and monochromatic modes was used for perfusion assessment. ICG-FA was utilised for qualitative assessment of gastric pouch perfusion before and after linear stapled gastro-jejunal anastomosis.

Results
Operative time was 240 minutes. Adhesions were encountered in the lesser sac at the site of previous LAGB. Fundectomy allowed better visualisation of lesser sac, adhesiolysis and facilitated creation of gastric pouch. ICG perfusion of gastric pouch was satisfactory. The postoperative length of stay was 2 days. There were nopostoperative complications at 6 months follow-up. The patient achieved 42% excess weight loss (BMI 43) over 6 months period.

Conclusions
Fundectomy is a safe and feasible operative step in R-LRYGB in patients with previous primary LAGB. ICG-FA is a promising qualitative assessment tool in revisional bariatric procedures.
IBC-Oxford University2023_BJSOral_21Video Presentation: Bikini Line Access in Bariatric Surgery - 8 years’ experience
Authors: Abdelbaki T 
Published: December 2023

Abstract
Laparoscopic bariatric surgery is constantly advancing to minimize surgical trauma and enhance cosmetic outcomes, particularly among young women and patients who are concerned about the appearance of their scars. In line with this, we developed the Bikini Line Sleeve Gastrectomy (BLSG) approach to make the port site scars from LSG less noticeable. This approach involves placing the trocars at the lower abdomen, along the curved line just above the symphysis pubis. The aim of this placement is to achieve a more aesthetically pleasing outcome, as the scars are concealed within the bikini line. During the implementation of the BLSG technique, it was observed that some patients would come back with gallstones. So we started performing Bikini Line Cholecystectomy. Furthermore, some patients also had a concurrent hiatal hernia that needed to be addressed. The challenge was to perform the hiatal hernia repair using the same access points without compromising the safety or efficiency of the repair. Finally, we started exploring the bikini line access during one anastomosis gastric bypass.
IBC-Oxford University2023_BJSPoster_2Gastric Bypass and Bone Health: A Systematic Review and Meta-analysis
Authors: Danif E , Santos-Sousa H , Roxo L , Bouça-Machado R , Resende F , Costa-Pinho A , Preto J , Lima da Costa E , Sousa-Pinto B , Carneiro S 
Published: December 2023

Abstract

Introduction
Roux-en-Y gastric bypass (RYGB) is a technique widely used in the management of obesity. Changes in bone analytic parameters and areolar bone mineral density (aBMD) are not yet fully understood in patients that underwent RYGB.
The aim of this study is to assess the changes in parameters involved in bone metabolism that occur after RYGB and to understand how these changes contribute to the development of osteoporosis, and occurrence of bone fractures.

Methods
The electronic search included three databases. Inclusion criteria were prospective or retrospective cohort studies, case-control studies, patients with obesity undergoing RYGB, evaluation of changes in bone metabolism parameters, aBMD, osteoporosis and fracture risk. Bone metabolism analytic parameters and aBMD were extracted and analysed. Data is presented in two sets, one year data set and long-term data (≥1 year) set.

Results
Fifteen studies were included in the review, 11 were included in the meta-analysis. In the long-term analysis parathyroid hormone (PTH) serum concentration increased and calcium serum concentration decreased. Vitamin D serum concentration increased only in the first-year post-surgery. Carboxy-terminal collagen crosslinks (CTX) increased substantially both in the first-year post-op and in the long-term analysis. There was a global decrease on aBMD in all the studied anatomical regions. No study showed a significant increase in the risk of osteoporosis or bone fracture.

Conclusion
RYGB is associated with a prolonged increase in bone turnover which in turn results in long term loss of bone mass. Greater reductions in aBMD were seen in areas associated with greater biomechanical stress. Despite the bone changes described the occurrence of pathological fractures in the several studies was minimal, this complication remains rare in patients undergoing RYGB.
IBC-Oxford University2023_BJSPoster_9Causes of re-hospitalization according to the bariatric procedures, single center experience
Authors: Foula M S 
Published: December 2023

Abstract
The numbers of bariatric procedures are increasing dramatically worldwide. Despite the international guidelines and recommended preventive perioperative steps, postoperative complications still occur with significant numbers. Postoperative complications differ and represent a heterogeneous group of diseases with different pathophysiology, severity and management plans reaching up to major revisional surgery. Many patients require rehospitalization for managing these complications. The observed increasing numbers of rehospitalization prompted us to study and analyse the causes of readmission. This retrospective descriptive study aimed to report our experience, as a tertiary university institute in managing various complications after different bariatric procedures that necessitated hospital readmission. All patients who have been admitted in a university tertiary hospital in Saudi Arabia with any post-bariatric surgery complication for the last five years were included. A total of 228 admitted patients were included due to any post-bariatric complications. Most of them was diagnosed with more than one clinical entity. These patients underwent different bariatric procedures either performed in our institution or referred to us from other hospitals. Demographic data revealed that both genders were equally involved, the age ranged from 15-68 years. Most of bariatric procedures were reported. The length of hospital stay ranged from 1 – 84 days. Postoperative leakage was found in 23 patients after sleeve gastrectomy. Therefore, better recognition and diagnosis of postoperative complications is mandatory. Analysis of the common causes could prompt a clinical pathway and preventing programs.
IBC-Oxford University2023_BJSPoster_14Short-Term Outcomes of Single-Anastomosis Sleeve-Ileal Bypass (SASI)
Authors: Kavlakoglu B , Senol M 
Published: December 2023

Abstract

Background
The SASI bypass, which is a simplified version of sleeve gastrectomy with transit bipartition, is based on the same metabolic principles, particularly the early postprandial ileal brake. Compared to SASI bypass, sleeve gastrectomy offers advantages such as shorter operation time and lower incidence of internal herniation. The aim of this study was to assess the safety and outcomes of SASI bypass over a 3-year follow-up period.

Methods
A retrospective study was conducted on all patients who underwent SASI bypass between January 2018 and June 2023. The primary endpoints were weight loss and diabetic remission.

Results
A total of 54 patients, with a mean age of 39,4 ± 15 years and a mean body mass index of 38,5 ± 6,8 kg/m2, underwent SASI bypass. There was no significant early postoperative complications. At the end of the first year, the average percentage of excess weight loss (%EWL) was 82,6 ± 7,4, and the rate of diabetic remission was 96,1 %. After 3 years, the %EWL was 97,4 ± 4,1, and the diabetic remission rate was 98,8%. Severe protein-energy malnutrition occurred in 4 patients(7,4%), and reversal of the bypass were made in 3 of 4 patients. Technical variations did not significantly affect %EWL or diabetic remission.

Conclusion
SASI bypass demonstrated promising outcomes in terms of 3-year %EWL and diabetic remission. While the double-outlet for gastric content allows access to the duodenum, it may hinder the standardization of postoperative care. Furthermore, the presence of a double-outlet does not guarantee the absence of malnutrition.
Review of dermoscopic features in hypopigmentary disorders
Authors: Morriss Samuel , Rodrigues Michelle 
Published: December 2023

Abstract
Dermoscopy has seen increased use in the diagnosis of hypopigmentary disorders. As a quick and effective adjunct to the clinician’s toolbox, dermoscopy offers the opportunity to differentiate between hypopigmentary lesions that ostensibly present with clinically similar morphology on the macroscopic scale. The focus of this article is to review the various dermoscopic signs and patterns that have been elucidated for these disorders.
Medea/Media: a glitchy counterfactual
Authors: Telò Mario , Conybeare Catherine 
Published: December 2023

Abstract
James Ijames, the winner of a 2022 Pulitzer prize for Fat Ham, loosely based on Hamlet, has just presented a new realization of Medea, Media/Medea, which had its world premiere at Bryn Mawr College and the Community College of Philadelphia in April 2023. This article provides a reading of it, addressing the themes of irony, queer ‘authenticity’, acting, and mothering through the framing of the ‘glitchy counterfactual’ — a conceit we borrow from Legacy Russell’s manifesto for a new Black cyberfeminism to approach the most blatant innovation in Ijames’s version, the unfulfilled infanticide. This astonishing change in the script, which tightly connects Medea with her onomastic negativity and queer unbecoming, urges us to reflect upon survival and survivance in an anti-Black world; it might yield a reckoning in line with Kevin Quashie’s notion of ‘subjunctivity’, Black ‘aliveness’.