Gallstones Research Articles

Laparotomy Versus Laparoscopy Cholecystectomy for Surgical Treatment in Patients with Gallstone Disease: A Comparative Cost-Effectiveness Analysis

Background: Due to the increasing costs of the healthcare system and limited financial resources, healthcare policymakers should adopt more cost-effective strategies. Objectives: This study aimed to compare the cost-effectiveness of laparotomy cholecystectomy with laparoscopy. Methods: This economic evaluation was conducted on patients with cholecystitis who were candidates for surgery in a private hospital in Ahvaz in 2021. Data collection tools consisted of four parts: (1) demographic information checklist; (2) clinical information checklist; (3) cost checklist; and (4) effectiveness assessment tool. SPSS22 and STATA14.2 were used for data analysis. One-way sensitivity analysis and Tornado diagrams were performed using Tree Age software. Results: The mean total effectiveness score in patients treated with laparoscopy was 83.44 (SD = 11.34), which was higher than those treated with laparotomy at 68.39 (SD = 13.61). This difference was statistically significant in all effectiveness criteria, except for postoperative infection rates and length of operation (P < 0.001). The mean cost for patients undergoing laparoscopy was significantly higher than for those undergoing laparotomy ($481.43 vs. $459.49). However, overall, laparoscopic treatment (5.77) was more cost-effective than laparotomy (6.71). The laparoscopic procedure was approximately $1.47 per effectiveness unit cheaper than laparotomy, according to the ICER. One-way sensitivity analysis showed that the laparoscopic method remained more cost-effective, even when adjusting for cost and effectiveness components. Conclusions: Although laparoscopic cholecystectomy was more expensive than laparotomy cholecystectomy, it was generally more cost- effective. The results of this research may assist Iran’s healthcare policymakers and managers in promoting laparoscopic cholecystectomy in hospitals.

BN O04 - Trends in the management of bile duct stones in the United Kingdom: Are we following the evidence?

Abstract Background Common bile duct stones (CBDS) are typically managed in two stages: Endoscopic Retrograde Cholangiopancreatography (ERCP) followed by laparoscopic cholecystectomy (LC). However, access to ERCP can be limited or require referral, has a high failure rate, often necessitates additional imaging, and may involve multiple procedures. Increasing evidence suggests that single-stage management, involving LC with intraoperative imaging and bile duct exploration when indicated, is cheaper, more effective, and reduces overall length of stay. British Society of Gastroenterology guidance states that it is a valid alternative to ERCP. This study aimed to determine whether clinical practice aligns with this evidence. Method National Health Service (NHS) Admitted Patient Care publications summarise Hospital Episode Statistics by financial year and are openly accessible. OPCS4 Procedure Codes were screened by two authors and categorised as “operative” or “endoscopic.” Codes detailing the management of CBDS or bile duct exploration were included, while ambiguous codes or those for non-stone indications were excluded. Data pertaining to these codes were extracted from the Admitted Patient Care publications for 2012 to 2022 and summarised in a Microsoft Excel spreadsheet. Trends were analysed using a Non-Seasonal Mann-Kendall Trend Test Results A total of 249,475 procedures for CBDS were performed over the ten-year period, with a mean patient age of 67. Annually, the total number of procedures increased from 21,365 to 27,668 (p=0.002). Endoscopic procedures increased from 19,716 to 25,976 (p=0.002), while operative procedures remained stable (1,649 to 1,692, p=0.431). Consequently, the proportion of endoscopic management rose from 92.3% to 93.9% (p<0.001). The mean age of patients undergoing operative procedures was ten years younger than those undergoing endoscopic procedures (57 vs. 67 years) Conclusion Despite evidence and guidance supporting single-stage procedures, there is a trend towards endoscopic management of CBDS in the UK. This may be due to operational pressures on the NHS, including the sequelae of the COVID-19 pandemic, or reflect challenges within hospital culture, skill mix, or equipment availability.

BS SO09 - Use of ursodeoxycholic acid in preventing gallstone formation after bariatric surgery – introduction of a new clinical pathway

Abstract Background Rapid weight loss is a risk factor for symptomatic gallstone formation. Managing gallstone disease such as choledocholithiasis can be more challenging after Bariatric Surgery (BS) due to altered anatomy. Ursodeoxycholic acid (UDCA) is a low-cost and low-risk method of reducing the risk of symptomatic gallstone disease and cholecystectomy by almost a third in patients who have had BS. However, it is not yet included in national guidelines for bariatric surgery. We audited prescription rates of UDCA in patients who underwent BS with a view to introducing it into our standard post BS care bundle. Method Data was collected from 30 consecutive patients who underwent a sleeve gastrectomy or Gastric bypass in November and December 2023. The results informed our practice and a UDCA prescribing pathway was developed using evidence from randomized trials. The pathway was circulated to all members of the bariatric service on 17/1/2024 and discussed at the departmental meeting. The audit loop was closed by collecting data from a further 30 consecutive patients. Demographic data, type of operation, BMI, history of gallstone disease, prescribing data and reasons for non-compliance were collected. The compliance rate to the UCDA pathway was expected to be 100%. Results Data was collected from 60 patients (85% female; median BMI 49; median age 45). No patient who could have benefited received UDCA prior to the intervention. After the intervention, 15/30 (50%) of patients were correctly prescribed UDCA. Therefore, correct prescription of UDCA did not meet target compliance rates. No patient was incorrectly prescribed UCDA. Reasons for non-compliance include human error, concern about the size of the tablet, inadequate knowledge about how to administer (e.g. crushing in liquid) and misconceptions of oral intake after BS. Conclusion UCDA can reduce incidence of symptomatic gallstones following BS, yet use of UDCA in bariatric centres in the UK is thought to be low. We discovered that more time should be dedicated to educating the team about administration methods and how it interacts with the current postoperative diet plan. A UCDA pathway and education of bariatric teams can improve compliance with appropriate UDCA prescribing. Further intervention is required and planned in our centre such as utilising e-prescribing as a prompt to include UDCA in the discharge prescription and considering the use of the drug's liquid form in the short term.

BN SO52 - Innovative Tools for Laparoscopic Bile Duct Exploration (LCBDE) in Torbay Hospital

Abstract Background Laparoscopic bile duct exploration (LCBDE) is a minimally invasive technique used to manage common bile duct (CBD) stones. The procedure has evolved significantly with the development of specialized tools that enhance efficacy and patient outcomes. This abstract aims to discuss the various tools employed for LCBDE at Torbay Hospital, highlighting their specific uses, benefits, and outcomes. Method We conducted a retrospective analysis of LCBDE procedures performed at Torbay Hospital. The tools used included the Pusen ‘Skinny scope’, Ambscope, Nathenson tipless basket, GB stone retrieval basket, and Rotacrusher. Data were collected on the types of tools used, procedural success rates, stone clearance rates, and any complications Results The Pusen ‘Skinny scope’ (3mm) was used in 60% of cases for transcystic exploration, showing high success in stone visualization and retrieval. The Ambscope (5mm) was used in 30% of cases for choledochotomy, effectively accessing larger stones. The Nathenson tipless basket retrieved up to 8mm stones in 45% of cases. The GB stone retrieval basket extracted non-disposable stones up to 2cm. The Rotacnsher, used for large stones in choledochotomy, was highly effective but needed larger port access. Laser and mechanical lithotripters fragmented stones larger than 1cm with an 85% success rate. Overall stone clearance was 90% with minimal complications. Conclusion The use of specialized tools in LCBDE at Torbay Hospital has significantly improved the management of CBD stones. The Pusen ‘Skinny scope’ and Ambscope provide excellent visualization and access, while the Nathenson tipless basket and GB stone retrieval basket offer reliable stone extraction capabilities. Advanced lithotripters further enhance the ability to manage larger stones. These tools collectively contribute to high success rates and favorable patient outcomes, reinforcing the value of LCBDE in modern surgical practice.

BN SO12 - Management Strategies for Complications in Common Bile Duct Exploration: A Single Unit Comprehensive Analysis

Abstract Background 10-20% of individuals with systemic gallstones are estimated to have common bile duct stones (CBDS)(1). Laparoscopic common bile duct exploration (LCBDE) and two stage laparoscopic cholecystectomy (LC) with subsequent endoscopic retrograde cholangiopancreatography (ERCP) are clinically equivalent in their purpose but associated with different risks and require different skill sets, training and facilities. This study has retrospectively reviewed all LCBDE in our Benign Upper Gastrointestinal Surgery Unit, in particular analysing complications, the management strategies employed, and the impact associated with these interventions. Method A retrospective analysis was conducted on all patients (n=427) who underwent LCBDE between November 2013 and May 2024 at our benign Upper Gastrointestinal Surgery Department to evaluate complications. Comparison is made with British Benign Upper Gastrointestinal Surgical Society (BBUGSS) standards. Results 16.6% (n=71) experienced complications; 3.28% (n=14) retained stone, 3.74% (n=16) bile leak, 9.6% (n=41) non-specific surgical complications. Bile leak approaches were transcystic (n=2), transcystic converted to cholecdochotomy (n= 3), and choledochotomy n=11. Leaks were diagnosed on ERCP (50%), drains (n=3), CT (n=4) and clinical suspicion (n=1). 50% (n=8) were managed by ERCP, n=6 laparoscopic washout, and n=2 conservatively. Of retained stones, n=5 were indicated intraoperatively, n=7 on readmission with pain, n=1 on tubogram, and n=1 due to increased drain output. 80% (n=12) managed via ERCP with sphincterotomy +/- stenting. Of the remainder n=1 underwent open exploration, and n=1 managed conservatively. Conclusion Bile duct complications can be life altering and thus early identification and management is paramount. BBUGSS’ recommended performance standards for LCBDE state that frequency of retained stones should be <15%, bile leaks <5% and return to theatre <5% (2). In our trust rates are 3.51%, 3.74% and 1.64% respectively. Our stone clearance rate is 96.49%, higher than the BBUGSS standard of >85% (2). Our findings conclude that a benign UGI unit in a District General Hospital can deliver a one stage approach with good management of complications from LCBDE.

BN SO51 - Complications from operative cholangiogram during emergency laparoscopic cholecystectomy: A retrospective, observational cohort study in a UK single centre

Abstract Background Laparoscopic cholecystectomy (LC) is a common surgical procedure, with >60,000 undertaken annually in the UK. One serious complication of cholecystectomy is bile-duct-injury (BDI), with an incidence of 0.28–1.5%. The use of intraoperative-cholangiogram (OTC) has been shown to aid in earlier diagnosis and treatment of BDI. Although advocated as routine by many, no studies have assessed the morbidity caused by OTC. With newer modalities available, such as indocyanine-green-fluorescent-cholangiography (ICGC) and three-dimensional laparoscopy, it is important to consider each method's risks and benefits, including OTC. We decided to investigate the morbidity caused by OTC with an emphasis on post-OTC acute pancreatitis. Method We conducted a retrospective cohort study of a prospectively collected cohort of patients aged 18 and over who have undergone emergency LC, defined as LC within seven days from admission with acute cholecystitis, over three years in a UK district general hospital. The primary outcome studied was the incidence of complications following OTC, including acute pancreatitis (AP), acute cholangitis, extra-hepatic biliary tree injury and hepatic abscess. The STROBE (STrengthening the Reporting of OBservational studies in Epidemiology) checklist was utilised. We used GraphPad Prism 10.2.3. for statistical analysis. Results 472 cases were analysed. Median age was 54(A), BMI 31(C), ASA grade 2(D), clinical frailty score 2(E), Charlson Comorbidity Index 1(F), Tokyo severity grade 1(K) and female-to-male ratio 0.83(B). 14.31% of cases had pre-op CBD dilatation, 0.42% CBD stones and 6.19% both, with most having ultrasound pre-op (J-I). The median Nassar score was 3(L). 24.57 % of cases had an OTC done, with a median volume of contrast-media used of 11(6;24.5) mls, with 17 cases having CBD stones diagnosed(M-O). Four cases, or 3.44% of the total OTCs, developed acute pancreatitis (P). Conclusion Emergency laparoscopic cholecystectomy with intraoperative cholangiogram may increase the risk of postoperative acute pancreatitis.

HPB SO75 - Burden and Pattern of Gallstone-Related Acute Surgical Admissions

Abstract Background Gallstone disease accounts for nearly one-third of emergency general surgery admissions, with a considerable number resulting from recurrent episodes. Laparoscopic cholecystectomy (LC) is the only definitive treatment for gallstones. This study aimed to examine the burden and patterns of acute biliary admissions. Method This prospective cohort study was conducted over a continuous 12-week period in 2022 within a single surgical unit, focusing on all gallstone-related admissions. The total number of admissions for various surgical pathologies was documented, and the proportion due to biliary disease was determined. The analysis encompassed patient demographics, reasons for biliary admission, prior gallstone history, and any planned laparoscopic cholecystectomies (LC). Results There were 532 acute admissions, 98 (18.4%) were gallstones related. Median age was 62 years (IQR 47-72) and 58 (59.2%) were female. 40 (40.8%) had acute cholecystitis, 24 (24.5%) had gallstone pancreatitis, 16 (16.3%) had bile duct stones, 10 (10.2%) had biliary colic and 8 (8.2%) had ascending cholangitis. 43 (43.9%) patients were known to have gallstones and 26 (26.5%) patients had prior admission related to gallstones. 35.7% patients had outpatient LC, 23.5% had no documentation, 19.4% had inpatient LC, 18.4% were not fit candidates and 3.1% patients declined LC. Median total length of stay was 6 days (IQR 4-11). Conclusion In our study, the rate of biliary-related admissions was lower than previously reported in the literature. This reduction may be attributed to our semi-aggressive management approach for gallstone disease. To further improve patient outcomes, we suggest implementing more aggressive management strategies for gallstones during the initial admission for patients who are deemed fit for surgery. Such an approach could potentially reduce the recurrence of biliary admissions and enhance overall treatment efficacy.

HPB SO27 - Reconsidering Routine Histopathological Examination of Gallbladder Specimens in Cholecystectomy: Optimizing Clinical Practice and Resource Management

Abstract Background Cholecystectomy, the removal of the gallbladder, is a common surgery performed globally. Routine histopathological examination (HPE) of gallbladder specimens post-surgery aims to detect pathologies like gallbladder cancer (GBC). GBC incidence varies by region and ethnicity, with higher risks in women and those over 65. Advanced GBC stages often require surgery, while early stages may only need cholecystectomy. Global HPE practices differ based on resources and GBC rates. This study evaluates the necessity of routine HPE by examining the selective processing of specimens suspected of GBC, ensuring patient safety while potentially optimizing resource use. Method This retrospective cohort study conducted at Redland Hospital, a district general hospital in Australia, investigated the necessity of routine histopathological examination (HPE) for excised gallbladder specimens. Adhering to routine HPE policy, the study encompassed all elective and emergency cholecystectomies performed from January 2023 to December 2023, excluding pediatric cases, concurrent surgical procedures, and those with suspected malignancy. Demographic data, surgery indications, intraoperative findings, histopathological results, and incidental gallbladder cancer (IGC) outcomes were analyzed. Pathology reports and case documentation were reviewed for cancerous pathology indicators. Results Over the one-year study period from January 2023 to December 2023, a total of 266 gallbladder specimens were subjected to histopathological examination (HPE) post-cholecystectomy. Of these, 201 were female and 65 were male, yielding a male-to-female ratio of 3:1. Elective cholecystectomy was performed on 56.4% (150) of patients, while 43.6% (116) underwent emergency procedures. Laparoscopic cholecystectomy (LC) was the primary surgical approach, except for one case requiring conversion to an open procedure. None of the patients exhibited gallbladder carcinoma (GBC); however, 3.3% (9) displayed premalignant histopathological features in their specimens. Conclusion In conclusion, adopting a selective approach, where only gallbladder specimens with macroscopic abnormalities undergo histopathological examination (HPE), seems prudent, especially in regions with low gallbladder cancer (GBC) incidence. Our study, which revealed no cases of GBC, supports this approach. It not only reduces the risk of missing incidental carcinoma in clinically unsuspected cases but also proves cost-effective and reduces the histopathology department workload without compromising patient outcomes. Therefore, we advocate for routine macroscopic examination of gallbladder specimens for abnormalities before HPE submission, particularly in cholecystectomy patients with gallstone disease.

BN SO43 - The impact of dedicated “hot cholecystectomy lists” on rates of early cholecystectomy and its outcomes

Abstract Background Surgical management of gallstone disease is evolving with NICE guidelines emphasising on early cholecystectomy following an index admission with biliary symptoms. Despite an attempt at adhering to these recommendations, many centres find operating theatre capacity as a potential significant constraint to offer a same admission or early cholecystectomy. We assess the impact of a dedicated theatre capacity provided by a specialist upper gastrointestinal surgical team on rates of early cholecystectomy and its outcomes. Method A pathway for patients presenting with symptomatic gallstone disease was designed and implemented trust wide, with two theatre lists per week dedicated to performing “hot cholecystectomies”. Retrospective analysis was performed from a prospectively maintained database of patients with symptomatic gallstone disease admitted to a district general hospital over two equal (30 days) but chronologically independent time periods. Data was collected from prior and after service reconfiguration and analysed with descriptive statistics. Results 19 patients (F:M ratio 0.82:1) were referred for the consideration of receiving a hot cholecystectomy. Nine of the 12 patients (75%) who were deemed to be suitable as per NICE guidelines underwent a cholecystectomy within the recommended time frame. There was a significant difference in the number of admissions over the two time periods with a shorter time from index admission to surgery (median 62 days to 5 days (P<0.01)); with correspondingly fewer re-admissions from 14 to 2 (P<0.01) following service reconfiguration. Conclusion With adequate theatre resources together with surgical expertise, early laparoscopic cholecystectomy can be proved to be an effective and sustainable model for the management acute biliary disease. Continue ahead, we aim to improve our computer-based referral system which will be better suited to record referrals, and the patient pathway. This data will be developed into a dashboard, thereby keeping a contemporaneous record of acute admissions and their management; subsequently improving the number and quality of referrals.

EDI&S SO06 Do All Patients with Biliary Problems Need Surgery? Applying C-Gall Study Results to Long Waiters for Laparoscopic Cholecystectomy

Abstract Background The recent C-GALL study, a multi-centre randomised trial, found no significant difference in quality of life at two years between operative and non-operative management of uncomplicated gallstone disease. This suggests some patients may not benefit from elective laparoscopic cholecystectomy (LC), potentially leading to over-listing for surgery. By identifying patients who may no longer need surgery, we could reduce waiting lists and improve resource allocation. This study aims to reassess patients with an enforced period of observation on an elective waiting list for LC, to determine if they wish to make a different decision about proceeding with surgery. Method Patients listed for an elective LC who had been waiting longer than 11 months from referral were reviewed. Patients were contacted through telephone clinics by a surgeon. Data was collected on type of gallstone disease, history of abdominal surgery, biliary pain since last seen by a clinician, pain radiation to the back, pain reduction with simple analgesia, nausea, and heartburn. Identified patients were contacted and, if exhibiting minimal or no symptoms, were offered the option to be removed from the waiting list with 12 months of patient-initiated follow-up and high priority relisting if their clinical condition worsened. Results We contacted 59 patients awaiting elective LC Most were female (49, 83%), had biliary colic (43, 73%), and were under 60 years old (38, 64%). Seventeen patients (29%) were happy to opt out due to lack of symptoms. Of these, 13 (76%) were female, 11 (65%) had biliary colic, and 7 (41%) were under 60. Chi-squared analysis identified age as the only predictive factor, with those under 60 being less likely to opt out (p=0.038). We will continue to monitor representation and the need for reoperation to ensure safety and the findings remain consistent overtime. Conclusion The study demonstrates that a significant proportion of patients awaiting elective LC can be safely managed without planned cholecystectomy, potentially reducing waiting lists, cost and utilisation of healthcare resources. We would advise considering review of long waiters to re-evaluate their clinical need for cholecystectomy in order to improve sustainability within surgery. These findings support a more personalised approach to managing biliary pain, prioritising patients for surgery based on symptom severity.

EGS SO01 - A retrospective study on understanding the dangers of delaying emergency laparoscopic cholecystectomies in patients with acute cholecystitis

Abstract Background Gallstone related diseases account for approximately one-third of emergency general surgery admissions and referrals. Acute cholecystitis (AC), a major complication of gallstones, is typically treated with laparoscopic cholecystectomies (LC), the gold standard for treating symptomatic gallstone disease. According to NICE guidelines patients with AC should preferably undergo a LC within 72 hours. Similarly, SAGES recommends that patients who can tolerate the procedure should have a LC within 24-72 hours of diagnosis. This study aimed to determine if surgical outcomes differ among patients managed within 24 hours, between 25-72 hours, and more than 72 hours from onset of symptoms. Method This retrospective analysis evaluates wait times between onset of symptoms and surgery, as well as subsequent surgical outcomes for patients booked for emergency LC over a twelve-month period from September 2022 to September 2023. The data assessed included demographics, indications, imaging results, alkaline phosphate (ALP) levels, alanine transaminase (ALT) levels, total bilirubin levels, C-reactive protein (CRP) levels, white cell count levels, american society of anaesthesiologists (ASA) grade, type of intraoperative complications, time of day operated, length of hospital stay, duration of symptoms prior to decision for surgery and wait until surgery. This data was compared against NICE and SAGES standards. Results Sixty-one patients underwent emergency LC in the twelve-month period reviewed, mean age was 49.7 years. The sample was approximately 70% (n=43) female and 28% (n=17) male. 62% (n=38) of patients were booked for a LC within 72 hours of symptom onset. 5% (n=3) of patients had their surgery within 24 hours of presenting to hospital with symptoms, 41% (n=25) had their surgery within 24-72 hours and 54% (n=33) waited more than 72 hours for their LC. 84% (n=51) of the total patients had no adverse intraoperative findings. The 16% (n=10) patients who had complications were part of all three groups. Conclusion This study found that 46% of the patients presenting with symptoms of AC undergo emergency LC within 72 hours as per NICE and SAGES guidelines. Intraoperative complications were found in all groups of patients, waiting from 0 to 72 hours for their surgery. 80% of the complications seen were in patients waiting more than 24 hours for their LC. Increasing local awareness on the importance of not delaying emergency LC by creating pathways, such as dedicated LC lists, to allow same-admission LC will enable us to adhere more closely to current guidelines and reduce morbidity from gallstone disease.

EGS SO11 - A Retrospective Review of Perioperative Outcomes after Laparoscopic Cholecystectomy in Older Patients

Abstract Background Laparoscopic cholecystectomy is the definitive treatment for gallstone-related disease. With an increasingly aging population, a growing number of elderly patients are presenting acutely with gallstone pathology. However, rates of perioperative mortality and complications are significantly higher in elderly patients undergoing laparoscopic cholecystectomy (Kamarajah et al). We aim to evaluate peri-operative outcomes in elderly patients presenting with acute gallstone disease who have been clinically evaluated to be appropriate for emergency cholecystectomy, and explore the impact of frailty on these outcomes. Method A retrospective study was performed on patients over the age of 75 presenting acutely with gallstone disease over a 3-year period. Data on perioperative complications, mortality at 1 year, post-operative length of stay (LOS) and 90-day readmissions were collected and analysed. The patient’s pre-operative fitness was categorized using the ASA classification of physical status and the Clinical frailty score (CFS); a 9-point scale quantifying frailty based on function. Statistical significance was assessed to determine differences between the age or frailty score groups. Results 592 patients attended hospital with gallstone-related pathology; 99 patients underwent emergency laparoscopic cholecystectomy, 486 patients were managed conservatively, and 25 patients had cholecystostomies. The post-operative mortality rate was 4%, post-operative complication 19.2% and readmission rate 11.1%. Post-operative LOS was significantly longer in frailer patients (p=0.02299). There were no statistically significant differences in mortality or post-operative complications between the CFS3 or less and CFS4 or more groups, although a general trend towards higher rates of complications and mortality was noted with increasing frailty. Conclusion Patients over 75 years of age should be carefully considered before proceeding with surgical management. Although older and frailer patients exhibited increased rates of complications and mortality post-operatively, these didn't reach statistical significance, reflecting the role of clinical decision-making regarding surgical fitness. Even for a pre-selected patient group, there is statistically significant prolonged post-operative LOS in frailer patients. This suggests a need for comprehensive preoperative assessment in this population, and a combination of CFS and ASA may be key determinants. Further studies assessing frailty and non-operative outcomes are required to substantiate these findings and guide clinical management in this population.

BN SO05 - Risk Factors associated with Complications Post-Laparoscopic Common Bile Duct Exploration: A Comprehensive Literature Review

Abstract Background Gallstone-related diseases, particularly common bile duct (CBD) stones, present a significant global health issue. The adoption of laparoscopic common bile duct exploration (LCBDE) has revolutionized the management of these conditions by providing a minimally invasive alternative to open surgery. This literature review aims to identify and analyze the risk factors associated with complications in LCBDE, thereby offering insights to improve patient care and outcomes. Method comprehensive search for primary research studies, systematic reviews, and meta-analyses pertaining to risk factors for complications following LCBDE. The search was conducted on PubMed, focusing on English-language articles published within the last 20 years and encompassing all age groups. Peer-reviewed journal articles were prioritized. All relevant studies reporting complications after LCBDE were eligible for inclusion if available as full texts, structured abstracts, or conference reports. The initial search yielded 826 articles. Exclusion criteria : open surgery, non-English articles, lacking full-text. A total of 29 records were identified by the literature search. Results Laparoscopic common bile duct exploration (LCBDE) is generally safe and effective, with complication rates influenced by patient and procedural factors. Older age, comorbidities, previous abdominal surgeries, high BMI, narrow common bile ducts, and difficult stones increase risks. Experienced surgeons and shorter operative times reduce complications. The transcystic approach and primary suture closure have fewer complications compared to the transductal route and T-tube drainage, respectively. Intraoperative imaging significantly reduces risks by ensuring complete stone clearance and identifying anatomical variations. Tailoring surgical approaches to patient-specific factors and leveraging surgical expertise are crucial for minimizing complications in LCBDE. Conclusion LCBDE emerges as a safe and effective therapeutic modality for addressing conditions impacting the bile ducts (31). The success and utility of LCBDE can be significantly enhanced through the meticulous optimization of patient-related, surgeon-related, and procedure-related factors. By addressing and fine-tuning these key elements, the occurrence of complications associated with LCBDE can be mitigated, thereby reinforcing its potential as a primary choice for managing various bile duct conditions. This strategic approach not only underscores the clinical efficacy of LCBDE but also advocates for its expanded utilization as a frontline intervention in the comprehensive management of bile duct disorders.

VS 04 - HPB Laparoscopic trans-vesical approach is safe management for cholecystoduodenal fistula

Abstract Background A 71 year old female initially presented cholangitis. Her MRCP showed a distal common bile duct (CBD) stone. An ERCP was then performed which was not successful due to anatomical challenge in the form of a large diaphragmatic hernia. An elective laparoscopic cholecystectomy with IOC was performed. An incidental cholecystoduodenal fistula was found therefore the clinical decision was made to perform a trans-vesical approach to fistulogram. This showed a fistula was present and that it was not complicated further. This case shows that this approach avoided iatrogenic injury by confirming presence of the fistula and aided further surgical planning. Method Standard four-port technique with 10mm, 30-degree laparoscope. Blunt, sharp, energised and hydro-dissection were employed. The duodenum was adherent to the gallbladder body therefore a trans-vesical enterotomy was performed. Fistulogram confirmed presence of a cholecystoduodenal fistula but nil further pathology. The fistula was dissected from the gallbladder and stapled with the GIA endo- tri-staple 45 Purple. Further dissection to gallbladder to ensure clear visualisation of calot’s triangle. Basket trawl of the CBD was performed and repeat cholangiogram was clear. The gallbladder was dissected from gallbladder fossa, all gallstones were removed and 3L of wash was used to irrigate the intra-abdominal cavity. Results The patient was admitted following the procedure and was discharged on day two with PPI. She was reviewed post-operatively at 12 weeks and had no further issues. She remains well and has had no further episodes of cholangitis or hospital admissions in almost four years since the procedure. Conclusion This case shows an unexpected finding of cholecystoduodenal fistula in a planned laparoscopic cholecystectomy with IOC. It is important to note that some gas was seen in the gallbladder on initial imaging therefore indicating a possible cholecystoduodenal fistula. This trans-vesical approach with fistulogram confirmed a simple fistula and no further pathology and aided safe surgical planning. This improved patient outcomes and avoided iatrogenic injury thus providing a safer way to manage cholecystoenteric fistula. This novel approach to cholecystoduodenal fistula repair improves patient safety, length of stay and by aiding intra-operative planning and avoiding iatrogenic injury.

EGS SO07 - Laparoscopic retrieval of endoscopic lithotripsy basket aided by laser fragmentation: Case presentation and literature review

Abstract Background Large or impacted common bile duct (CBD) stones that cannot be removed by conventional endoscopic methods sometimes require endoscopic mechanical lithotripsy. A rare but feared technical complication related to this is basket entrapment, where the stone-basket complex cannot be separated from each other due to mechanical failure and becomes impacted within the CBD. We present a novel case of laparoscopic CBD exploration and antegrade laser fragmentation of impacted stone-basket complex, and perform a literature review pertaining to this topic. Method This is a case report from a single district general hospital with laparoscopic capabilities but no access to Spyglass. The operation began with fundus first subtotal cholecystectomy and the cystic duct was ligated with PDS endoloops. A choledochotomy was made and dilated to allow insertion of a 7.5 Fr cholangioscope. Through this, laser lithotripsy was undertaken which reduced the stone size and permitted disengagement of the stone from basket. The stone was retrieved via enlargement of the choledochotomy, while the basket and wire retrieved orally. We subsequently performed a literature review of Pubmed, Google Scholar, and Embase. Results Laparoscopic retrieval of an impacted basket was first described in 1993, with the basket found lodged in the gallbladder. The technique involved a large cholecystotomy, followed by removal of the basket, closure of the gallbladder, and then cholecystectomy. Our literature review yielded 5 case reports of laparoscopic retrieval of basket from the CBD. Three authors describe manual disengagement of the basket by laparoscopic manipulation of the wires, one describes capturing an impacted Dormia basket with a second Dormia basket, and one describes direct mechanical fragmentation and subsequent balloon trawl of the remaining debris. Conclusion To our knowledge, this is the first case report describing laparoscopic CBD exploration with concurrent laser fragmentation to facilitate retrieval of impacted stone-basket complex following mechanical lithotripsy failure. We propose that this is a viable option in centres without Spyglass or electrohydraulic lithotripsy, but where expertise for emergency laparoscopic CBD exploration exists.

HPB SO70 - Evaluating the Outcome of Laparoscopic Common Bile Duct Exploration Against Key Performance Indicator (KPI) of the British Benign Upper GI Surgical Society (BBUGSS)

Abstract Background Treatment of common bile duct (CBD) stone(s) can be challenging with a risk of significant complications. Laparoscopic common bile duct exploration (LCBDE) displays superior outcomes when compared to endoscopic retrograde cholangiopancreatography (ERCP). Acknowledging the impact of patient variables and surgical proficiency, the British Benign Upper GI Surgical Society (BBUGSS) developed Key Performance Indicators (KPIs) to optimize LCBDE outcomes. The present study comprises an audit of LCBDE outcomes with respect to the BBUGSS KPIs and aims to determine the feasibility and quality of LCBDE that can be achieved in a district general hospital (DGH) with a recently developed LCBDE service. Method This retrospective observational study examined all adult patients who underwent LCBDE between August 2022 and June 2024 by two specialized biliary surgeons at a single surgical unit within a DGH. This DGH also serves as a referral center for biliary cases from affiliated hospitals. The preference in our surgical unit is single stage management (laparoscopic cholecystectomy and simultaneous LCBDE) of CBD stones in surgically fit patients. The analysis included preoperative assessments, intraoperative observations, and postoperative outcomes, with respect to the published BBUGSS KPIs for LCBDE. Results 60 patients were eligible for inclusion; median age was 56 years (IQR 40-67) and 40 (66.7%) were female. 33 (55%) were emergency cases. 52 (86.7%) were transcystic exploration; of these 8 (15.4%) utilised basket-in-catheter and 44 (84.6%) utilised choledochoscopes. Median post-operative stay for transcystic exploration was 1 day (IQR 0-2) and for cholechodotomy 8 days (IQR 5-9). Key Performance IndicatorBBUGSS StandardOur outcomeConversion rates<10%0%Bile duct clearance rates>85%91.7%Bile Leak Rates<5%0%Returns to theatre<5%0%Readmission rates (within 30 days)<15%6.7%Overall Morbidity<15%3.3%Overall Mortality<1%0% Conclusion This study indicates that the BBUGSS KPIs for LCBDE are satisfactorily achieved in our centre. Adequate ductal clearance with minimal morbidity was achieved. Our outcomes are likely attributed to the recent commencement of a specialist biliary service and utilisation of predominantly transcystic approach, with the aid of electrohydraulic lithotripsy where needed, as opposed to choledochotomy. Furthermore, the present study suggests a high quality LCBDE service is feasible in a DGH setting if there is sufficient clinical and managerial motivation. We suggest that single stage management of bile duct stones model should be considered in other similar centres.

HPB SO35 - Outcomes of Transcystic Laparoscopic Common Bile Duct Exploration at the time of Laparoscopic Cholecystectomy in patients with small common bile duct diameter

Abstract Background Laparoscopic Cholecystectomy with Laparoscopic Common Bile Duct Exploration (LC+LCBDE) is a single stage therapeutic option for management of choledocholithiasis. There have been limited publications regarding the feasibility of transcystic LCBDE in patients with small (≤8mm) common bile ducts (CBD). This study seeks to examine the outcomes for patients with small ducts who underwent LC+LCBDE via a transcystic approach (LCBDE-t) in a district general hospital over a thirty-month period. Method Prospectively collected data regarding all patients who underwent LC+LCBDE-t over a period from January 2022 to June 2024 was retrospectively reviewed. Data including indication for surgery, CBD diameter, length of stay, complication rate, and readmission rate were determined from Electronic Care Records. Data were analysed using Microsoft Excel. Results 76 patients were identified. CBD diameter (almost all as measured at pre-operative Magnetic Resonance Cholangiopancreatography [MRCP]) ranged from 3.5mm to 8mm (average 6.32). One patient required conversion to open surgery due to difficulties with the LC element of the operation. Median postoperative length of stay was 1 day (range 0-32 days) and readmission rate was 5.33%. Five patients experienced a complication beyond Clavien-Dindo Grade II, with the most serious two being a bile leak and a postoperative bleed, both of which required further surgery. One patient required subsequent Endoscopic Retrograde Cholangiopancreatography (ERCP) for retained CBD stones. Conclusion LCBDE is a safe and effective management option for patients in the setting of choledocholithiasis with small CBD diameter. Small CBD should not necessarily be a deterrent to consideration of transcystic LCBDE as a therapeutic option in appropriately selected patients.

BN SO56 - Post-ERCP clearance of bile duct stones: Should the gallbladder be left in-situ?

Abstract Background Laparoscopic cholecystectomy (LC) has become the gold standard treatment for patients with cholelithiasis and co-existing common bile duct stones (CBSD) with the ultimate goal to prevent further biliary complications. Despite the procurement of ERCP and LC skills, there still remain a significant proportion of patients who are treated non-operatively. There has been debate on the safety of a ‘watch-and-wait’ policy post ERCP for clearance of CBDS alone. The objective of our study was to review our current practice and compare the outcomes of expectant management (EM) versus LC with an aim to evaluate the necessity of LC after ERCP. Method A retrospective review of patients who underwent ERCP for choledocholithiasis from 1st January 2017 to 31st December 2019 was performed. Exclusion criteria applied to patients with previous cholecystectomy, absence of CBDS, gallbladder/pancreatic malignancy, biliary stricture and patients lost to follow-up. Patient characteristics, details of ERCP, initial plan for EM or LC, details of LC and further changes in treatment plan were extracted from the prospectively maintained database of a single institution. Age 70 years is used as cut-off to define elderly group. Primary outcomes measured were biliary-related morbidity and mortality. Secondary outcomes included all-cause mortality, operation-related morbidity and mortality. Results 265 patients were identified, with 136 patients primarily planned for EM and 129 patients initially booked for LC. The median age of patients in the EM group was greater than LC group (80 vs 62 years). 20.6% patients in the EM group re-presented with biliary events compared to 3.9% in the LC group. The median time from first ERCP to recurrence of biliary events in the EM group was 14 months. There was no significant correlation between age and complications from LC. However, 51.4% of our EM group died during follow up with a median survival of 29.5 months. Conclusion Prophylactic cholecystectomy should be performed for patients with concomitant cholelithiasis and choledocholithiasis. A conservative approach should be reserved for the elderly population who are not ideal surgical candidates. A follow-up of up to 2 years is recommended for patients who opt for a ‘watch-and-wait’ approach. Early LC is preferrable due to the risk of recurrence of biliary events and the higher risks of surgery if patients require emergency surgery. Further study is warranted to determine the optimal timing for LC. Patients should be informed about the potential recurrence of symptoms if the waiting time to surgery is longer than expected.

A04 - EGS Evidenced competency in benign biliary surgery amongst UK general surgeons at certification: A JCST/ISCP study

Abstract Background Symptomatic gallstones are the most common reason for evaluation by an Emergency General Surgery (EGS) service, with laparoscopic cholecystectomy (LC) being performed by most general surgeons. Previous studies show that most LCs in the United Kingdom (UK) are performed by colorectal surgeons (CR). Emergency cholecystectomy requires advanced skills including intra-operative assessment of the bile ducts, and the ability to perform intra-operative cholangiogram (IOC) is part of the procedure-based assessment (PBA) that evidences competency for certificate of completion of training (CCT). This study aims to assess documented evidence of competency in benign biliary surgery amongst general surgeons in the UK. Method PBAs relating to LC and CBD exploration (CBDE) were retrieved for all UK general surgeons who received CCT between 2016 and 2021 from ISCP (702; 285 (41%) colorectal; 212 (30%) Upper GI (UGI)). All eLogbook entries relating to LC +/- IOC +/- CBDE were also retrieved. Subspecialty interest was determined from Part 2 of the FRCS examination. Competence (Level 4) as well as a granular assessment of IOC and CBDE was compared amongst trainees, taking into account their subspecialty interest. Results 11,733 LC and 553 CBDE assessments from 160,570 LC +/- IOC +/- CBDE procedures recorded on eLogbook were retrieved. Knowledge of IOC indication was assessed in 467 (94%) surgeons, but performance was only assessed in 380 (75%) surgeons. Median satisfactory IOC performance assessments was 3 (2-5). UGI were more likely to do this than colorectal (4 (2-7) vs 2 (1-4) P < 0.001). Satisfactory CBDE was achieved by 86 surgeons (12 CR and 74 UGI). 486 surgeons (97% CR; 94% UGI) received Level 4 (independence) despite never achieving satisfactory ability to perform IOC. Conclusion Competency in acute biliary surgery for general surgeons at certification is extensively assessed using PBAs. Cholecystectomy training and assessment in the UK does not seem to include intraoperative bile duct anatomy assessment or treatment of CBD stones. Assumed competency in cholecystectomy by trainers in the UK does not seem to include the need to do this, as 97% of CR and 94% of UGI trainees achieve documented competence without the ability to perform IOC. This may have an impact on EGS service delivery of acute and emergency gallbladder surgery including the ability to deal with difficult cases.

BN SO17 - When cholecystectomies go wrong: A single-centre review of post-operative complications over a two year period

Abstract Background Laparoscopic cholecystectomy (LC) is the main treatment for symptomatic gallstone disease with around 70,000 performed in the UK each year. The majority of these are day case procedures and patients recover well, however, there will always be a risk of more serious complication which can have serious negative effects on patients. The Clavien-Dindo classification of surgical complications is the most recognised method of grading post-operative complications by severity. The aim of our study was to identify our rates and severity of post-operative complication and their management. Method All patients who had LC between 1st July 2020 and 30th June 2022 were identified. Patient and operative details were retrieved from their electronic record. A complication was defined as any deviation from the standard post-operative course and was graded according to the Clavien-Dindo classification. 30-day readmission data was collected via hospital episode statistics and outcomes were reviewed on the patient record. Results 974 patients underwent LC. 30-day morbidity = 8.9%, 30-day readmission = 4.8% and 30-day mortality = 0.31%. Clavien-Dindo grade of complication: Grade 1= 44.7%, Grade 2 = 22.4%, Grade 3A = 12.9%, Grade 3B = 11.8%, Grade 4A = 1.2%, Grade 4B = 1.2%; and Grade 5 = 3.5%. 11 patients (1.1%) returned to theatre; bile leak was the most common indication (73%). Two intra-operative bile duct injuries were observed (0.21%) with one managed locally and the other transferred to the regional HPB centre. 7 patients required post-operative ERCP (0.72%), 57% for CBD stones and 43% for persistent bile leak. Conclusion Our study showed that the majority of post-operative morbidity following LC is related to post-operative pain (2.9%) or simple wound infection (1.8%). 2.6% of patients who underwent LC during had a significant complication requiring surgical, endoscopic or radiological intervention or admission to intensive care (Clavien-Dindo > 2). We report a 0.21% risk of bile duct injury and a 0.92% risk of post-operative bile leak. Overall our findings are in keeping with other studies but provide an insight into our local practice and that an area of potential improvement would be better management of post-operative pain.