Safe laparoscopic cholecystectomy: A systematic review of bile duct injury prevention

Avoidance of bile duct injury in laparoscopic cholecystectomy with feasible intraoperative resources: A cohort study

Laparoscopic cholecystectomy (LC) is one of the most commonly performed surgeries and is considered the standard treatment for cholelithiasis. However, it is associated with a risk of bile duct or hepatic artery injuries. This study evaluated the safety of LCs and the conversion rate (CR) by achieving a critical view of safety (CVS) and identification of Rouviere's sulcus (RS). This was a single-group cohort study that included consecutive patients undergoing LC at Smart Health Tower (Sulaimani, Iraq) from January 2021 to January 2023. The data were prospectively collected from patients' profiles or surgical notes within the hospital's database. A total of 419 patients underwent LC, of which females were the predominant gender (78.5%). The mean and median ages of the cases were 46.3±15.8 and 45 years, with a range of 2-90 years, respectively. The most common indications for surgery were biliary colic (69.5%), followed by acute cholecystitis (23.9%). The duration of the operations was significantly shorter for cases in which the CVS (45.6±17.9 min) or identification of RS (45.6±18.6 min) was achieved compared to those where the CVS (63.7±27.7 min) or RS (50.7±21.7 min) was not observed. Surgeries for patients with both CVS achievement and RS identification were also significantly less time-consuming (44.3±17.6) than counterparts (53.3±22.6). Among the cases without CVS achievement or RS identification (n=97, 23%), eight (8.2%) had adhesions, 12 (12.4%) had a distended gallbladder (GB) and 10 (10.3%) had thick GB walls. In addition, four (4.1%) experienced GB perforation, two (2.1%) had bleeding and one (1%) had stone spillage. There was no conversion. The achievement of CVS and identification of RS are practical landmarks in performing safe LC and decreasing the CR.

Biliary Leaks: Multidisciplinary Approach to Diagnosis and Treatment

Bile leaks arise from various causes such as trauma, complications after hepatobiliary surgery, and intrahepatic malignancies or their associated liver-directed treatments. Bile leaks can result in significant morbidity and mortality. Delayed diagnosis is not uncommon due to nonspecific manifestations; therefore, a high clinical suspicion is needed. A multidisciplinary approach for treatment of biliary leaks with prompt referral to tertiary care centers with experienced hepatobiliary surgeons, advanced endoscopists, and interventional radiologists is needed to address these challenging complications. Management of biliary leaks can range from conservative management to open surgical repair. Minimally invasive procedures play a crucial role in biliary leak treatment, and the interventional radiologist can help guide appropriate management on the basis of a clear understanding of the pathophysiology of biliary leaks and a current knowledge of the armamentarium of treatment options. In most cases, a simple diversion of bile to decompress the biliary system may prove effective. However, persistent and high-output biliary leaks require delineation of the source with tailored treatment options to control the leak. This may be done by additional diversions, occluding the source, reestablishing connections, or using a combination of therapies to bridge to more definitive surgical interventions. The authors describe the different treatment options and emphasize the role of interventional radiology. ©RSNA, 2024.

Surgical strategy for incidental intrahepatic cholangiocarcinoma in terms of lymph node dissection

BACKGROUND

Although many guidelines recommend performing lymph node dissection (LND) during surgery for intrahepatic cholangiocarcinoma (ICC), there is no evidence for patients with incidentally detected ICC who did not undergo LND. This study aimed to identify the role of LND in patients with incidental ICC.

METHODS

The data from 284 patients who had undergone radical surgery for ICC from 2000 to 2020 were retrospectively reviewed. The enrolled patients were divided into 3 groups according to their T stage (T1 vs T2 vs T3 + 4). Moreover, the patients of each T group were divided into 3 groups according to their nodal status (N0 vs N1 vs Nx) and their survival outcomes were compared.

RESULTS

Survival outcomes of Nx group were statistically similar to that of N0 group in T1 stage (Nx vs N0: disease-free survival [DFS] [months], 129.0 [75.6-182.4] vs 125.0 [65.7-184.3], P = .948; overall survival [OS] [months], 175.0 [153.9-196.1] vs 173.0 [109.0-237.0], P = .443). In contrast, survival outcomes of Nx group in the other T stage (T2 and T3 + 4) were poorer than that of N0 group and were better than that of N1 group. In addition, in the Nx subgroup analysis according to T stage, T1 group showed significantly better survival outcomes than the other groups (T1 vs T2 vs T3 + 4: DFS [months], 129.0 [75.9-182.1] vs 16.0 [9.8-22.2] vs 13.0 [0.3-25.7], P < .001; OS [months], 175.0 [153.9-196.1] vs 53.0 [30.8-75.2] vs 37.0 [17.6-56.4], P < .001).

CONCLUSION

Patients with ICC incidentally diagnosed as having T2 or above T stage may consider additional LND.

Laparoscopic subtotal cholecystectomy outcomes across a low-and middle-income country metropolitan health service

BACKGROUND

Laparoscopic subtotal cholecystectomy (LSC) is a safe alternative for difficult cholecystectomies to prevent bile duct injury and open conversion. The primary aim was to detail the use and outcomes on LSCs.

METHODS

Retrospective analysis of a prospectively maintained database of laparoscopic cholecystectomy (LC). Relative clinical factors, outcomes, and 30-day follow-up between LSC and LC were compared using univariate and multivariate analyses.

RESULTS

Six hundred and twenty four cholecystectomies were performed and 53 (8.5%) required LSC. 81.8% were fenestrating LSC. Male sex was significantly overrepresented in the LSC group (p < 0.01) and patients requiring LSC were significantly older (p < 0.01). Same admission cholecystectomy was associated with a higher risk of LSC (p < 0.01). Patients with a history of previous surgery, preoperative ERCP, or percutaneous cholecystostomy had an increased risk of undergoing LSC (p < 0.01). A necrotic gallbladder was the most significant predictor of the need for a LSC (p < 0.001). A contracted gallbladder, extensive adhesions, gallbladder empyema, and severe inflammation were significant predictors of difficulty (all p < 0.01). Postoperative complications occurred in 26.4% of LSC patients. There were ten (18.9%) Clavien-Dindo Grade III complications, 5.7% required ERCPs, and 9.4% required relook laparotomies. Significantly, more patients in the LSC group developed bile leaks (n = 8, 15%) (p < 0.001). There were two readmissions within 30 days, one mortality, and no BDIs occurred in the LSC cohort.

CONCLUSION

LSC provides a feasible surgical option that should be utilized in complex cholecystitis.

A comparison of outcomes including bile duct injury of subtotal cholecystectomy versus open total cholecystectomy as bailout procedures for severe cholecystitis: A multicenter real-world study

BACKGROUND

Dense inflammation obscuring the hepatocystic anatomy can hinder the ability to perform a safe standard laparoscopic cholecystectomy in severe cholecystitis, requiring use of a bailout procedure. We compared clinical outcomes of laparoscopic and open subtotal cholecystectomy against the traditional standard of open total cholecystectomy to identify the optimal bailout strategy for the difficult gallbladder.

METHODS

A multicenter, multinational retrospective cohort study of patients who underwent bailout procedures for severe cholecystitis. Procedures were compared using one-way analysis of variance/Kruskal-Wallis tests and χ2 tests with multiple pairwise comparisons, maintaining a family-wise error rate at 0.05. Multiple multivariate linear/logistical regression models were created.

RESULTS

In 11 centers, 727 bailout procedures were conducted: 317 laparoscopic subtotal cholecystectomies, 172 open subtotal cholecystectomies, and 238 open cholecystectomies. Baseline characteristics were similar among subgroups. Bile leak was common in laparoscopic and open fenestrating subtotal cholecystectomies, with increased intraoperative drain placements and postoperative endoscopic retrograde cholangiopancreatography(P < .05). In contrast, intraoperative bleeding (odds ratio = 3.71 [1.9, 7.22]), surgical site infection (odds ratio = 2.41 [1.09, 5.3]), intensive care unit admission (odds ratio = 2.65 [1.51, 4.63]), and length of stay (Δ = 2 days, P < .001) were higher in open procedures. Reoperation rates were higher for open reconstituting subtotal cholecystectomies (odds ratio = 3.43 [1.03, 11.44]) than other subtypes. The overall rate of bile duct injury was 1.1% and was not statistically different between groups. Laparoscopic subtotal cholecystectomy had a bile duct injury rate of 0.63%.

CONCLUSION

Laparoscopic subtotal cholecystectomy is a feasible surgical bailout procedure in cases of severe cholecystitis where standard laparoscopic cholecystectomy may carry undue risk of bile duct injury. Open cholecystectomy remains a reasonable option.

Enhancing biliary structure identification using percutaneous cholecystostomy drain delivery of indocyanine green: a glowing two case review

The use of indocyanine green for fluorescent cholangiography in patients with cholecystitis initially treated with percutaneous cholecystostomy drainage catheters was described in this two case series. Two patients underwent robotic assisted cholecystectomy with fluorescent cholangiography and indocyanine green through percutaneous cholecystostomy drainage catheters. The patients were diagnosed with acute cholecystitis. Directed injection of indocyanine green allowed for direct visualization of the biliary system allowing for a safe identification of the critical view of safety. Injection of indocyanine green for fluorescent cholangiography through percutaneous cholecystostomy drainage catheters is reliable to assess the critical view of safety and allows for improved identification of the biliary tree anatomy. Administration of indocyanine green through the percutaneous cholecystostomy drainage catheters avoided background hepatic fluorescence and increased contrast between biliary structures.

Near-infrared cholangiography with intragallbladder indocyanine green injection in minimally invasive cholecystectomy

Laparoscopic cholecystectomy (LC) remains one of the most commonly performed procedures in adult and paediatric populations. Despite the advances made in intraoperative biliary anatomy recognition, iatrogenic bile duct injuries during LC represent a fatal complication and consist an economic burden for healthcare systems. A series of methods have been proposed to prevent bile duct injury, among them the use of indocyanine green (ICG) fluorescence. The most commonly reported method of ICG injection is the intravenous administration, while literature is lacking studies investigating the direct intragallbladder ICG injection. This narrative mini-review aims to assess the potential applications, usefulness, and limitations of intragallbladder ICG fluorescence in LC. Authors screened the available international literature to identify the reports of intragallbladder ICG fluorescence imaging in minimally invasive cholecystectomy, as well as special issues regarding its use. Literature search retrieved four prospective cohort studies, three case-control studies, and one case report. In the three case-control studies selected, intragallbladder near-infrared cholangiography (NIRC) was compared with standard LC under white light, with intravenous administration of ICG for NIRC and with standard intraoperative cholangiography (IOC). In total, 133 patients reported in the literature have been administered intragallbladder ICG administration for biliary mapping during LC. Literature includes several reports of intragallbladder ICG administration, but a standardized technique has not been established yet. Published data suggest that NIRC with intragallbladder ICG injection is a promising method to achieve biliary mapping, overwhelming limitations of IOC including intervention and radiation exposure, as well as the high hepatic parenchyma signal and time interval needed in intravenous ICG fluorescence. Evidence-based guidelines on the role of intragallbladder ICG fluorescence in LC require the assessment of further studies and multicenter data collection into large registries.

Acute cholecystitis: how to avoid subtotal cholecystectomy-preliminary results

BACKGROUND

The aim of this manuscript is to illustrate a new method permitting safe cholecystectomy in terms of complications with respect to the common bile duct (CBD).

METHODS

The core of this new technique is identification of the continuity of the cystic duct with the infundibulum. The cystic duct can be identified between the inner gallbladder wall and inflamed outer wall.

RESULTS

In the last 2 years, from January 2019 until December 2021, 3 patients have been treated with the reported technique without complications.

CONCLUSIONS

Among the various cholecystectomy procedures, this is a new approach that ensures the safety of the structures of Calot's triangle while providing the advantages gained from total removal of the gallbladder.

Current Operative Approaches to the Diseased Gallbladder. Diagnosis and Management Updates for General Surgeons

Cholecystitis is a common diagnosis which requires management by general surgeons. Morbidity from cholecystitis is often life-threatening, especially in patients with underlying liver cirrhosis or other medical comorbidities. Diagnosis and management of this disease can vary among providers and hospitals. The decision to utilize a radiological or endoscopic temporizing maneuver in severe acute cholecystitis and the timing of later definitive cholecystectomy are relevant points of discussion within general surgery societies. In the last 5 years, the use of intraoperative ductal imaging by conventional vs fluorescence cholangiography had gained significant interest due to the widespread availability of indocyanine green. Finally, the operative strategies and how to manage intra-/postoperative complications are very important to optimizing patient outcomes. In this review paper, we discuss all treatment aspects of cholecystitis and provide updates in its management.

Use of artificial intelligence for decision-support to avoid high-risk behaviors during laparoscopic cholecystectomy

INTRODUCTION

Bile duct injuries (BDIs) are a significant source of morbidity among patients undergoing laparoscopic cholecystectomy (LC). GoNoGoNet is an artificial intelligence (AI) algorithm that has been developed and validated to identify safe ("Go") and dangerous ("No-Go") zones of dissection during LC, with the potential to prevent BDIs through real-time intraoperative decision-support. This study evaluates GoNoGoNet's ability to predict Go/No-Go zones during LCs with BDIs.

METHODS AND PROCEDURES

Eleven LC videos with BDI (BDI group) were annotated by GoNoGoNet. All tool-tissue interactions, including the one that caused the BDI, were characterized in relation to the algorithm's predicted location of Go/No-Go zones. These were compared to another 11 LC videos with cholecystitis (control group) deemed to represent "safe cholecystectomy" by experts. The probability threshold of GoNoGoNet annotations were then modulated to determine its relationship to Go/No-Go predictions. Data is shown as % difference [99% confidence interval].

RESULTS

Compared to control, the BDI group showed significantly greater proportion of sharp dissection (+ 23.5% [20.0-27.0]), blunt dissection (+ 32.1% [27.2-37.0]), and total interactions (+ 33.6% [31.0-36.2]) outside of the Go zone. Among injury-causing interactions, 4 (36%) were in the No-Go zone, 2 (18%) were in the Go zone, and 5 (45%) were outside both zones, after maximizing the probability threshold of the Go algorithm.

CONCLUSION

AI has potential to detect unsafe dissection and prevent BDIs through real-time intraoperative decision-support. More work is needed to determine how to optimize integration of this technology into the operating room workflow and adoption by end-users.

Laparoscopic cholecystectomy induce tension pneumocephalus in a patient with ventriculoperitoneal shunt: A case report and literature review

INTRODUCTION AND PATIENT CONCERNS

We report on a 45-year-old woman who has a ventriculoperitoneal shunt (VPS), experienced drowsy mental status, with hypesthesia and hemiplegia on the left side. Ten days ago she underwent laparoscopic cholecystectomy (LC). Computed tomography revealed tension pneumocephalus, with severe compression on the right side of the brain.

INTERVENTIONS AND DIAGNOSIS

She underwent 2 surgeries, the first surgery was to place a subdural drainage catheter, however, the pneumocephalus relapsed after withdrawing the catheter, and the later surgery was to replace the new VPS.

OUTCOMES

After replacing the VPS, the patient recovers completely after 10 weeks of follow-up.

CONCLUSION

To our knowledge, this is the first report of LC-induced tension pneumocephalus in a patient with VPS. The purpose of this study is to share our experience, with the hypothesized mechanism being the retrograde air through the VPS valve because of high abdominal pressurization. We recommend noting the existence of the VPS when the LC or any abdominal laparoscopy is performed. The VPS should be clamped during any laparoscopic procedure until complete depressurization. Furthermore, all patients with VPS who have neurological deterioration after abdominal laparoscopy should be treated as having the diagnosis of a tension pneumocephalus. These patients need emergency surgery to replace VPS and set the valve for high-pressure, which can result in a quick and complete recovery.

Personalized Risk Assessment of Hepatic Fibrosis after Cholecystectomy in Metabolic-Associated Steatotic Liver Disease: A Machine Learning Approach

Metabolic Associated Fatty Liver Disease (MASLD) is a condition that is often present in patients with a history of cholecystectomy. This is because both situations share interconnected metabolic pathways. This study aimed to establish a predictive model that allows for the identification of patients at risk of developing hepatic fibrosis following this surgery, with potential implications for surgical decision-making. A retrospective cross-sectional analysis was conducted in four hospitals using a database of 211 patients with MASLD who underwent cholecystectomy. MASLD diagnosis was established through liver biopsy or FibroScan, and non-invasive test scores were included for analysis. Various Machine Learning (ML) methods were employed, with the Adaptive Boosting (Adaboost) system selected to build the predictive model. Platelet level emerged as the most crucial variable in the predictive model, followed by dyslipidemia and type-2 diabetes mellitus. FIB-4 score proved to be the most reliable non-invasive test. The Adaboost algorithm improved the results compared to the other methods, excelling in both accuracy and area under the curve (AUC). Moreover, this system holds promise for implementation in hospitals as a valuable diagnostic support tool. In conclusion, platelet level (<150,000/dL), dyslipidemia, and type-2 diabetes mellitus were identified as primary risk factors for liver fibrosis in MASLD patients following cholecystectomy. FIB-4 score is recommended for decision-making, particularly when the indication for surgery is uncertain. This predictive model offers valuable insights into risk stratification and personalized patient management in post-cholecystectomy MASLD cases.

Clinical Efficacy of Laparoscopic Cholecystectomy via Cystic Plate Approach for Gallstone Patients with Chronic Cholecystitis

Introduction: Chronic cholecystitis has evolved into one of the digestive system diseases that negatively affect the quality of life of patients. This study was conducted to explore the clinical efficacy of laparoscopic cholecystectomy via cystic plate approach for the treatment of gallstones with chronic cholecystitis. Materials and Methods: Totally 184 gallstone patients with chronic cholecystitis who underwent laparoscopic cholecystectomy in The First People's Hospital of Wuhu from January 2021 to October 2022 were randomly divided into a control group (n = 92) and an observation group (n = 92). In the observation group and control group, the gallbladder was removed using the cystic plate approach and traditional approach, respectively. Surgical indicators and complications of patients were compared. Serum levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) were measured by enzyme-linked immunosorbent assay. The quality of life of patients was assessed using the SF-36 scale. Results: The recovery time of gastrointestinal function, intraoperative blood loss, and postoperative drainage volume in the observation group were significantly lower than those in the control group (P < .05). At 24 hours after surgery, the serum levels of IL-6, TNF-α, and CRP in the observation group were much lower than those in the control group (P < .05). Three months after surgery, the observation group showed a much higher quality of life score than the control group (P < .05). Conclusion: Laparoscopic cholecystectomy via cystic plate approach can effectively treat chronic gallstones with chronic cholecystitis. It shortened the recovery time of gastrointestinal function, reduced postoperative inflammation, and improved the quality of life.

Achieving Critical View of Safety via a New Technique: The Triple One (111) Technique

BACKGROUND

Misidentification of anatomical structures is one of the most common causes of bile duct injury following laparoscopic cholecystectomy. Achieving Critical View of Safety (CVS) is a standard step in conducting safe cholecystectomy all over the world. In our institute, we achieve CVS via a unique technique called Triple One or 111 and find it very helpful and easy to achieve CVS. Moreover, the rate of conversion has also decreased while achieving CVS via this technique. The unique aspect of the Triple One technique is that by following this method, even new laparoscopic surgeons can achieve CVS very easily in difficult cases and, hence, it decreases the chances of vasculobiliary injury (VBI).

OBJECTIVE

This study aimed to determine how effective the Triple One technique is in achieving CVS as well as in lessening the chances of VBI.

MATERIAL AND METHODS

A total of 545 patients were admitted through the outpatient department, ranging in age from 30 to 70 years, with a mean of 50 years. The study comprised patients with American Society of Anaesthesiologists (ASA) I & II, acute and chronic cholecystitis, and symptomatic cholelithiasis. The study excluded patients with co-morbidities, prior abdominal procedures, and suspected complications. On the second postoperative day, all patients received their discharge papers and on the seventh postoperative day, follow-up was completed.

RESULTS

Successful gallbladder extraction using the Triple One technique was achieved in 540 (99%) cases. The other five (1%) cases converted to open cholecystectomy because of the difficult gallbladder anatomy and extensive scarring. No VBI or bile duct injury was noted. No mortality was recorded during the study period.

CONCLUSION

By incorporating CVS using the Triple One technique into our policies and curriculum, we may encourage safe cholecystectomy practices and prevent bile duct injuries.

Analysis of risk factors for complications after laparoscopic cholecystectomy

To analyze the risk factors of complications after laparoscopic cholecystectomy in 478 patients in our hospital.

METHODS

The clinical data of 478 patients who underwent laparoscopic cholecystectomy in our hospital from March 2018 to September 2022 were collected, and the occurrence of postoperative complications and related risk factors were analyzed.

RESULTS

A total of 36 patients (7.53%) had complications, including 9 cases (1.88%) of abdominal hemorrhage, 8 cases (1.67%) of bile duct injury, and 19 cases (3.97%) of biliary fistula. Univariate analysis showed that adhesions of Calot triangle, anatomical variation and gallbladder wall thickness greater than 5 mm were associated with postoperative complications (all P < 0.05). Multivariate analysis showed that: Calot triangle adhesion (OR = 3.041, 95%CI = 1.422-6.507), anatomical variation (OR = 4.368, 95%CI = 1.764-10.813) and gallbladder wall thickening (OR = 2.827, 95%CI = 1.422-6.507). 95%CI = 1.274-6.275) were independent risk factors for complications after laparoscopic cholecystectomy (all P < 0.05).

CONCLUSION

In order to reduce the occurrence of postoperative complications, the risk factors of LC should be well understood and the preoperative preparation should be made.

Major iatrogenic bile duct injury during elective cholecystectomy: a Czech population register-based study

PURPOSE

Bile duct injury (BDI) remains the most serious complication following cholecystectomy. However, the actual incidence of BDI in the Czech Republic remains unknown. Hence, we aimed to identify the incidence of major BDI requiring operative reconstruction after elective cholecystectomy in our region despite the prevailing modern 4 K Ultra HD laparoscopy and Critical View of Safety (CVS) standards implemented in daily surgical practice among the Czech population.

METHODS

In the absence of a specific registry for BDI, we analysed data from The Czech National Patient Register of Reimbursed Healthcare Services, where all procedures are mandatorily recorded. We investigated 76,345 patients who were enrolled for at least a year and underwent elective cholecystectomy during the period from 2018-2021. In this cohort, we examined the incidence of major BDI following the reconstruction of the biliary tract and other complications.

RESULTS

A total of 76,345 elective cholecystectomies were performed during the study period, and 186 major BDIs were registered (0.24%). Most elective cholecystectomies were performed laparoscopically (84.7%), with the remaining open (15.3%). The incidence of BDI was higher in the open surgery group (150 BDI/11700 cases/1.28%) than in laparoscopic cholecystectomy (36 BDI/64645 cases/0.06%). Furthermore, the total hospital stays with BDI after reconstruction was 13.6 days. However, the majority of laparoscopic elective cholecystectomies (57,914, 89.6%) were safe and standard procedures with no complications.

CONCLUSION

Our study corroborates the findings of previous nationwide studies. Therefore, though laparoscopic cholecystectomy is reliable, the risks of BDI cannot be eliminated.

Indocyanine green fluorescent cholangiography improves the clinical effects of difficult laparoscopic cholecystectomy

BACKGROUND

Near-infrared fluorescent cholangiography (NIRFC) with indocyanine green (ICG) as the developer yields clear visualization of the extrahepatic bile ducts and is effective in identifying key structures. Here, we analyzed and compared the surgical outcomes of fluorescent and conventional laparoscopy in cholecystectomy of various difficulties and then assessed the value of NIRFC.

MATERIALS AND METHODS

This retrospective study collected clinical data from partial patients who underwent laparoscopic cholecystectomy (LC) at the Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University between 2020 and 2021. The study subjects were classified into ICG-assisted and white-light laparoscopy. Two cohorts with homogeneous baseline status were selected based on 1:1 ratio propensity score matching (PSM). Multivariate logistic regression analysis was performed to predict independent risk factors for LC difficulty. Thereafter, the matched cases were classified into difficult and easy subgroups by combining difficulty score and gallbladder disease type, and then the surgical outcomes of the two groups were compared.

RESULTS

This study included a total of 624 patients. The patients were classified into the ICG group (n = 218) and the non-ICG group (n = 218) after a 1:1 ratio PSM. Our data showed significant differences between the groups in operative time (P = 0.020), blood loss (P = 0.016), length of stay (P = 0.036), and adverse reaction (P = 0.023). Stratified analysis demonstrated that ICG did not significantly improve the surgical outcomes in simple cases (n = 208). On the other hand, in difficult cases (n = 228), NIRFC shortened operative time (P = 0.003) and length of stay (P = 0.015), reduced blood loss (P = 0.028) and drain placement rate (P = 0.015), and had fewer adverse reactions (P = 0.023). The data showed that five cases were converted to laparotomy while two cases had minor bile leaks in the non-ICG group. There was no bile duct injury (BDI) in all the cases. Furthermore, high BMI, history of urgent admission and abdominal surgery, palpable gallbladder, thickened wall, and pericholecystic collection were risk factors for surgical difficulty.

CONCLUSION

ICG-assisted NIRFC provides real-time biliary visualization. In complicated conditions such as acute severe inflammation, dense adhesions, and biliary variants, the navigating ability of fluorescence can enhance the operation progress, reduce the possibility of conversion or serious complications, and improve the efficiency and safety of difficult LC.

Determinants, Costs, and Consequences of Common Bile Duct Injury Requiring Operative Repair Among Privately Insured Individuals in the United States, 2003-2020

Objective

Characterize the determinants, all-cause mortality risk, and healthcare costs associated with common bile duct injury (CBDI) following cholecystectomy in a contemporary patient population.

Background

Retrospective cohort study using nationwide patient-level commercial and Medicare Advantage claims data, 2003-2019. Beneficiaries ≥18 years who underwent cholecystectomy were identified using Current Procedure Terminology (CPT) codes. CBDI was defined by a second surgical procedure for repair within one year of cholecystectomy.

Methods

We estimated the association of common surgical indications and comorbidities with risk of CBDI using logistic regression; the association between CBDI and all-cause mortality using Cox proportional hazards regression; and calculated average healthcare costs associated with CBDI repair.

Results

Among 769,782 individuals with cholecystectomy, we identified 894 with CBDI (0.1%). CBDI was inversely associated with biliary colic (odds ratio [OR] = 0.82; 95% confidence interval [CI]: 0.71-0.94) and obesity (OR = 0.70, 95% CI: 0.59-0.84), but positively associated with pancreas disease (OR = 2.16, 95% CI: 1.92-2.43) and chronic liver disease (OR = 1.25, 95% CI: 1.05-1.49). In fully adjusted Cox models, CBDI was associated with increased all-cause mortality risk (hazard ratio = 1.57, 95% CI: 1.38-1.79). The same-day CBDI repair was associated with the lowest mean overall costs, with the highest mean overall costs for repair within 1 to 3 months.

Conclusions

In this retrospective cohort study, calculated rates of CBDI are substantially lower than in prior large studies, perhaps reflecting quality-improvement initiatives over the past two decades. Yet, CBDI remains associated with increased all-cause mortality risks and significant healthcare costs. Patient-level characteristics may be important determinants of CBDI and warrant ongoing examination in future research.

A case of mistaken identity: bile duct masquerading as gallbladder

Laparoscopic cholecystectomy is a common surgical procedure, with potential for significant morbidity. The incidence of bile duct injuries has increased with the advent of laparoscopy, occurring in up to 1% of cases. Risk of injury increases with aberrant anatomy, acute inflammation and fibrosis. Preventative strategies include obtaining the critical view of safety, using a fundus-first approach and performing a subtotal cholecystectomy in the difficult gallbladder. Although controversy exists for routine cholangiography, its use is helpful in situations of obscure anatomy. We describe the case of a chronically inflamed and unusually small 1.5 cm gallbladder with an obliterated cystic duct. The critical view of safety was not able to be achieved and intraoperative cholangiography enabled identification of aberrant anatomy, with a dilated common duct mistaken as the gallbladder infundibulum. This case highlights the need to be vigilant to structural variation and the utility of selective cholangiography to clarify anatomy.

A retrospective analysis of bile duct injuries treated in a tertiary center: the utility of a universal classification-the ATOM classification

BACKGROUND

Bile duct injuries (BDI) are the most feared complications that can occur after laparoscopic cholecystectomy (LC). BDI have a high variability and complexity, several classifications being developed along the years in order to correctly assess and divide BDI. The EAES ATOM classification encompasses all the important details of a BDI: A (for anatomy), To (for time of), and M (for mechanism) but have not gained universal acceptance yet. Our study intents to analyze the cases of BDI treated in our institution with a focus on the clinical utility of the ATOM classification.

METHODS

We conducted a retrospective study, on a 10-year period (2011-2020), including patients diagnosed with BDI after LC, with their definitive treatment performed in our tertiary center. All injuries were retrospectively classified using the Strasberg, Hannover, and ATOM classifications.

RESULTS

We included in our study 100 patients; 15% of the BDI occurred in our center. No classification system was used in 73% of patients; 23% of the BDI were classified by the Strasberg system, 3% were classified by the Bismuth classification, 1% being classified by the ATOM classification. After retrospectively assessing all BDI, we observed that especially the Strasberg classification, as well as Hannover, over-simplifies the characteristics of the injury, many types of BDI according to ATOM being included in the same Strasberg or Hannover category. Most main bile duct injuries underwent a bilio-digestive anastomosis (60%), as a definitive treatment. An important percentage of cases (31%) underwent a primary treatment in the hospital of origin, reintervention with definitive treatment being done in our department.

CONCLUSION

The ATOM classification is the best suited for accurately describing the complexity of a BDI, serving as a template for discussing the correct management for each lesion. Efforts should be made toward increasing the use of this classification in day-to-day clinical practice.

Bile duct injury in laparoscopic cholecystectomy with a posterior infundibular approach

Aims: Bile duct injury (BDI) in laparoscopic cholecystectomy (LC) has a significant impact on morbidity and mortality. Although the critical view of safety (CVS) concept is the most widely supported approach to prevent BDI, alternative approaches are used as well. The aim was to evaluate the incidence, severity, and management of bile duct injury in LC, using a posterior infundibular approach. Methods: This retrospective, monocentric cohort study includes patients who underwent LC for gallstone disease. Data were collected in a prospectively maintained database. Patients with BDI were identified and were analyzed in-depth. Results: Between 1999 and 2018, 8389 consecutive patients were included (M/F 3288/5101; mean age 55 (standard deviation; SD ± 17) years). Mean length of postoperative hospital stay was two days (SD ± 4). Fourteen patients died after LC and 21 patients were identified with BDI. Seventeen BDI (81%) patients were managed minimally invasive (14 endoscopic, 3 laparoscopic), and 4 patients via laparotomy (3 hepaticojejunostomy, 1 primary suture). Severe complications (Clavien-Dindo ≥3) after BDI repair were observed in 6 patients. There was no BDI-related mortality. Median follow-up time was 113 months (range 5–238). Conclusion: A posterior infundibular approach in LC was associated with a low incidence of BDI and no BDI-related mortality.

Evaluation of the knowledge of the critical view of safety and recognition of the transoperative complexity during the laparoscopic cholecystectomy

INTRODUCTION

Since the establishment of the Critical view of safety (CVS), different strategies have been created such as bailout procedures (SC, subtotal cholecystectomy), classifications for preoperative and intraoperative complexity (The Parkland grading scale, PGS) and objective evaluation of the CVS (doublet score, DS) to establish a "Culture of Safety in Cholecystectomy, COSIC"; to avoid complications.

METHODS

A multiple choice questionnaire was applied to residents and graduated surgeons from different Hospitals in Mexico during different national meetings; evaluating the knowledge of this different concepts (CVS, SC, PGS, DS), univariate logistic regression was used to assess the association of the knowledge with adverse events (AE) like the Bile duct injury.

RESULTS

A total of 744 questionnaires were evaluated; 284 (38.17%) women and 460 (61.83%) men; 436 (58.6%) were residents and 308 (41.4%) graduated surgeons. 708 (95.16%) reported knowing the CVS; however, only (51.98%, p ≤ 0.001) defined the concept correctly, while 136 (18.28%) reported knowing the DS, but only 44 (5.91%) defined it correctly. Regarding the PGS, 398 (53.49%) mentioned knowing it, but only 262 defined it correctly. The concept of SC 642 (86.29%) reported knowing it; however, only (56.7%, p ≤ 0.001) correctly defined the techniques, being the reconstituting technique the preferred one (42.37% vs 34.89%). In this survey, the correct knowledge of the CVS (OR 0.47, p < 0.001), the subtotal techniques (OR 0.71 p = 0.07), the DS (OR 0.48 p < 0.001) and of the PGS (OR 0.28, p < 0.001) decreased the risk of presenting BDI.

CONCLUSION

Despite the COSIC and the timing of publication of the CVS; the percentage of people who can correctly define basic safety concepts is low among residents and licensed surgeons. Therefore, it is important to emphasize the dissemination of these concepts to obtain safe LC and thus reduce the incidence of complications.

Near-infrared fluorescence guided laparoscopic cholecystectomy in the spectrum of complicated gallstone disease

ICG fluorescence (ICGF) guidance during laparoscopic cholecystectomy (LC) is gaining wider acceptance. While the accruing data largely addresses ICGF guidance during LC in patients with uncomplicated gallstone disease (UGS) and acute cholecystitis, there is a paucity of data related for complicated gall stone disease (CGS) such as choledocholithiasis, bilio-enteric fistula, remnant gall bladder, etc. The purpose of this study was to evaluate the role of ICGF during LC in the spectrum of CGS with state of the art 4 chip camera system. Retrospective review from a prospectively maintained database of all patients who underwent ICGF guided LC during the period June 1st, 2019 till December 30th, 2021 formed part of the study. Clinical profile and findings on ICGF during LC for CGS were studied. The data was studied to evaluate the potential roles of ICGF during LC for CGS. Of 68 patients, there were 29 males and 39 females. Among them were 32 and 36 in the uncomplicated and complicated gallstone disease groups, respectively. ICGF showed CBD visualization in 67(98.5%) and cystic duct in 62(91%). ICGF guidance helped in management of CGS, prior to, during and after completion of LC. It had novel application in patients undergoing CBD exploration. In our small series of patients with CGS, ICGF guidance enabled a LC and laparoscopic subtotal cholecystectomy in 94% and 6% of patients respectively. The study highlights potential roles and advantages with ICGF guided laparoscopic management for CBD stones, bilioenteric fistula, completion cholecystectomy and cystic duct stones. Large scale multicenter prospective studies are required to clarify the role of ICGF in the wide spectrum of CGS.

Indocyanine green (ICG) fluorescence guide for the use and indications in general surgery: recommendations based on the descriptive review of the literature and the analysis of experience

Indocyanine Green is a fluorescent substance visible in near-infrared light. It is useful for the identification of anatomical structures (biliary tract, ureters, parathyroid, thoracic duct), the tissues vascularization (anastomosis in colorectal, esophageal, gastric, bariatric surgery, for plasties and flaps in abdominal wall surgery, liver resection, in strangulated hernias and in intestinal ischemia), for tumor identification (liver, pancreas, adrenal glands, implants of peritoneal carcinomatosis, retroperitoneal tumors and lymphomas) and sentinel node identification and lymphatic mapping in malignant tumors (stomach, breast, colon, rectum, esophagus and skin cancer). The evidence is very encouraging, although standardization of its use and randomized studies with higher number of patients are required to obtain definitive conclusions on its use in general surgery. The aim of this literature review is to provide a guide for the use of ICG fluorescence in general surgery procedures.

Effectiveness of Laparoscopic Cholecystectomy in Patients with Gallbladder Stones with Chronic Cholecystitis

Objective

To assess the effectiveness of laparoscopic cholecystectomy in patients with gallbladder stones and chronic cholecystitis.

Methods

From July 2018 to January 2020, 90 patients with gallbladder stones and chronic cholecystitis assessed for eligibility were recruited and concurrently assigned (1 : 1) to receive either small-incision cholecystectomy (observation group) or laparoscopic cholecystectomy (experimental group). Outcome measures included operation time, intraoperative bleeding volume, postoperative hospital stay, c-reactive protein (CRP), interleukin (IL)-6, tumor necrosis factor-α (TNF-α), gastrin (GAS), vasoactive intestinal peptide (VIP), motilin (MOT), and adverse events.

Results

Patients given laparoscopic cholecystectomy showed lower levels of operation-related indices versus those receiving small-incision cholecystectomy (P < 0.05). Laparoscopic cholecystectomy resulted in lower postoperative levels of CRP, IL-6, and TNF-α in the patients versus small-incision cholecystectomy (P < 0.05). Patients receiving laparoscopic cholecystectomy showed better GAS, VIP, and MOT levels than those receiving small-incision cholecystectomy (P < 0.05). The eligible patients after laparoscopic cholecystectomy had a significantly lower incidence of adverse events versus those after small-incision cholecystectomy (P < 0.05).

Conclusion

Laparoscopic cholecystectomy effectively shortens the operative time and length of hospital stay in patients with gallbladder stones and chronic cholecystitis, reduces intraoperative bleeding, attenuates the inflammatory response, and enhances the gastrointestinal function, with less surgical trauma and high safety. Clinical trials are, however, required prior to promotion.

Effectiveness and Clinical Value of Laparoscopic Cholecystectomy and Cholangiography in the Diagnosis of Biliary Calculi

Objective

To investigate the effectiveness and clinical value of cholangiography in the diagnosis of bile duct stones in laparoscopic cholecystectomy.

Methods

200 patients who underwent laparoscopic cholecystectomy in our hospital from January 2017 to January 2019 were randomly divided into research group and control group, with 100 cases in each group. The research group underwent choledochotomy and exploration with the help of choledochoscope, while the control group underwent cholangiography to diagnose bile duct stones. The cure rate, residual stone rate, complication rate, intraoperative bleeding, hospital stay and patient satisfaction were compared between the two groups.

Results

in the control group, 9 cases were converted to laparotomy, 20 cases of common bile duct stones, 10 cases of bile duct injury and 6 cases of common bile duct variation. In the research group, there were 2 cases of conversion to laparotomy, 12 cases of common bile duct stones, 2 cases of bile duct injury and 4 cases of common bile duct variation. The cure rate of the researchgroup was higher than that of the control group, There was significant difference between the two groups (P < 0.05). The residual amount of stones in the research group was lower than that in the control group, and there was significant difference between the two groups (P < 0.05). The incidence of postoperative complications in the research group was lower than that in the control group, and there was significant difference between the two groups (P < 0.05). The patient satisfaction in the research group was higher than that in the control group, and there was significant difference between the two groups (P < 0.05). The intraoperative blood output of the research group was lower than that of the observation group, and there was significant difference between the two groups (P < 0.05).

Conclusion

cholangiography is an effective method for the diagnosis of bile duct stones in laparoscopic cholecystectomy. Clarifying the variation and anatomical structure of bile duct is helpful to improve the surgical cure rate, reduce the residual rate of postoperative stones and the incidence of complications, reduce the amount of intraoperative bleeding, shorten the hospital stay, and promote the postoperative rehabilitation of patients.

Near infrared indocyanine green fluorescent cholangiography versus intraoperative cholangiography to improve safety in laparoscopic cholecystectomy for gallstone disease-a systematic review protocol

BACKGROUND

Laparoscopic cholecystectomy has become the standard surgical approach in the treatment of cholelithiasis. Diverse surgical techniques and different imaging modalities have been described to evaluate the biliary anatomy and prevent or early detect bile duct injuries. X-ray intraoperative cholangiography (IOC) and near infrared indocyanine green fluorescent cholangiography (NIR-ICG) are safe and feasible techniques to assess biliary anatomy. The aim of this systematic review will be to evaluate if NIR-ICG can visualize extrahepatic biliary anatomy more efficiently and safer than IOC in minimally invasive cholecystectomy for gallstone disease.

METHODS

Literature search will be performed via MEDLINE (PubMed), Embase, Scopus, the Cochrane Central Register of Controlled Trials, and Web of Science Core Collection from 2009 to present. All randomized controlled clinical trials and prospective non-randomized controlled trials which report on comparison of NIR-ICG versus IOC will be included. All patients over 18 years old who require elective or urgent minimally invasive cholecystectomy (undergoing NIR-ICG during this procedure) due to gallstone disease both acute and chronic will be included. Since BDI has a low incidence, the primary outcome will be the ability to visualize extrahepatic biliary anatomy and the time to obtain relevant images of these structures. Two researchers will individually screen the identified records, according to a list of inclusion and exclusion criteria. Bias of the studies will be evaluated with the Newcastle-Ottawa score for non-randomized studies and with The Cochrane Risk of Bias Tool for randomized controlled trials. Quality of evidence for all outcomes will be determined with the GRADE system. The data will be registered in a predesigned database. If selected studies are sufficiently homogeneous, we will perform a meta-analysis of reported results. In the event of a substantial heterogeneity, a narrative synthesis will be provided. Subgroup analysis will be used to investigate possible sources of heterogeneity.

DISCUSSION

Understanding the benefits of this technique is critical to ensuring policymakers can make informed decisions as to where preventive efforts should be focused regarding specific imaging techniques. If ICG is proven to be faster and non-invasive, its routine use could be encouraged.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42020177991 .

[Modern principles of safety in laparoscopic cholecystectomy]

Laparoscopic cholecystectomy has many advantages over open surgery. Nevertheless, incidence of intraoperative bile duct injury is consistently higher for laparoscopic technique. This review is devoted to modern principles of identifying the anatomical elements in hepatoduodenal ligament and rules for safe tissue dissection in this area. The last ones mainly consist in formation of «critical view of safety» before clipping and transection of tubular structures. The key for «critical view of safety» is mobilization of fatty and fibrous tissues of hepatocystic triangle starting from the lower third of the gallbladder.

Fluorescent cholangiography: An up-to-date overview twelve years after the first clinical application

Laparoscopic cholecystectomy (LC) is one of the most frequently performed gastrointestinal surgeries worldwide. Bile duct injury (BDI) represents the most serious complication of LC, with an incidence of 0.3%-0.7%, resulting in significant perioperative morbidity and mortality, impaired quality of life, and high rates of subsequent medico-legal litigation. In most cases, the primary cause of BDI is the misinterpretation of biliary anatomy, leading to unexpected biliary lesions. Near-infrared fluorescent cholangiography is widely spreading in clinical practice to delineate biliary anatomy during LC in elective and emergency settings. The primary aim of this article was to perform an up-to-date overview of the evolution of this method 12 years after the first clinical application in 2009 and to highlight all advantages and current limitations according to the available scientific evidence.

Laparoscopic cholecystectomy in a swine model using a novel near-infrared fluorescent IV dye (BL-760)

BACKGROUND AND OBJECTIVES

Bile duct injury during laparoscopic cholecystectomy has an incidence rate of 1%-2% and commonly appears under conditions of severe inflammation, adhesion, or unexpected anatomical variations. Despite the difficulties and rising concerns of identifying bile duct during surgeries, surgeons do not have a specific modality to identify bile duct except intraoperative cholangiography. While no biliary-specific fluorescent dye exists for clinical use, our team has previously described the development of a preclinical biliary-specific dye, BL-760. Here, we present our study of laparoscopic cholecystectomy using the fluorescent dye in a swine model.

STUDY DESIGN/MATERIALS AND METHODS

With an approval from Institutional Animal Care and Use Committee, two 20-25 kg swine underwent laparoscopic abdominal surgery using a Food and Drug Administration-cleared fluorescent laparoscopic system. Images of the liver and gallbladder were taken both before and after intravenous injection of the novel fluorescent dye. The dye was dosed at 60 μg/kg and injected via the ear vein. The amount of time taken to visualize fluorescence in the biliary tract was measured. Fluorescent signal was observed after injection, and target-to-background ratio (TBR) of the biliary tract to surrounding cystic artery and liver parenchyma was measured.

RESULTS

Biliary tract visualization under fluorescent laparoscopy was achieved within 5 min after the dye injection without any adverse effects. Cystic duct and extrahepatic duct were clearly visualized and identified with TBR values of 2.19 and 2.32, respectively, whereas no fluorescent signal was detected in liver. Cystic duct and artery were successfully ligated by an endoscopic clip applier with the visual assistance of highlighted biliary tract images. Laparoscopic cholecystectomy was completed within 30 min in each case without any complications.

CONCLUSIONS

BL-760 is a novel preclinical fluorescent dye useful for intraoperative identification and visualization of biliary tract. Such fluorescent dye that is exclusively metabolized by liver and rapidly excreted into biliary tract would be beneficial for all types of hepato-biliary surgeries. With the validation of additional preclinical data, this novel dye has potential to be a valuable tool to prevent any iatrogenic biliary injuries and/or bile leaks during laparoscopic abdominal and liver surgeries.

Can Preoperative Characteristics Predict the Outcomes of Laparoscopic Cholecystectomy?

Background: Intraoperative findings during laparoscopic cholecystectomy (LC) are highly unpredictable and operative difficulty varies from straightforward to very challenging procedures. Several studies described predictors of technical difficulty and graded intraoperative findings of LC; however, none specifically reported on the effect of such factors on clinical outcomes. This study aims to evaluate if preoperative characteristics of patients undergoing LC predict how likely they are to fail to be day case (DC). Methods: Data of patients who underwent LC from 2015 to 2017 were retrospectively analyzed. Subjects were divided into four groups, according to Nassar's classification of intraoperative difficulty. Differences in frequencies were evaluated with the the chi square and post hoc chi square tests or Fisher's exact test; logistic regression analysis was used to identify independent variables that were predictors of intraoperative complexity, postoperative morbidity, and length of stay. Results: A total of 1043 patient were included with male to female ratio of 1:2.5. Older age, male gender, and comorbidities were associated with higher Nassar score (P < .0001); Nassar 3 and 4 were predictors of postoperative morbidity (P < .05). The DC rate was 74.2% (Nassar 1), 75.8% (Nassar 2), 61.1% (Nassar 3), and 26.2% (Nassar 4), respectively. Age ≥60 years (P < .05), body mass index ≥35 (P < .05), and Nassar 3 and 4 (P < .05) were predictors of increased conversion from DC to inpatient (IP) stay. Conclusion: LC can be safely performed on a DC basis even when surgery is technically challenging. The need of IP stay can be predicted in comorbid old adult men with anticipated higher Nassar's score.

The critical view of safety during laparoscopic cholecystectomy: Strasberg Yes or No? An Italian Multicentre study

BACKGROUND

Laparoscopic cholecystectomy is considered the gold standard for the treatment of gallbladder lithiasis; nevertheless, the incidence of bile duct injuries (BDI) is still high (0.3-0.8%) compared to open cholecystectomy (0.2%). In 1995, Strasberg introduced the "Critical View of Safety" (CVS) to reduce the risk of BDI. Despite its widespread use, the scientific evidence supporting this technique to prevent BDI is controversial.

METHODS

Between March 2017 and March 2019, the data of patients submitted to laparoscopic cholecystectomy in 30 Italian surgical departments were collected on a national database. A survey was submitted to all members of Italian Digestive Pathology Society to obtain data on the preoperative workup, the surgical and postoperative management of patients and to judge, at the end of the procedure, if the isolation of the elements was performed according to the CVS. In the case of a declared critical view, iconographic documentation was obtained, finally reviewed by an external auditor.

RESULTS

Data from 604 patients were analysed. The study population was divided into two groups according to the evidence (Group A; n = 11) or absence (Group B; N = 593) of BDI and perioperative bleeding. The non-use of CVS was found in 54.6% of procedures in the Group A, and 25.8% in the Group B, and evaluating the operator-related variables the execution of CVS was associated with a significantly lower incidence of BDI and intraoperative bleeding.

CONCLUSIONS

The CVS confirmed to be the safest technique to recognize the elements of the Calot triangle and, if correctly performed, it significantly impacted on preventing intraoperative complications. Additional educational programs on the correct application of CVS in clinical practice would be desirable to avoid extreme conditions that may require additional procedures.

MRI evaluation of bile duct injuries and other post-cholecystectomy complications

Laparoscopic cholecystectomy is one of the most common procedures performed each year and can be associated with various post-operative complications. Imaging is integral to diagnosis and management of patients with suspected cholecystectomy complications, and a thorough understanding of normal and abnormal biliary anatomy, risk factors for biliary injury, and the spectrum of adverse events is crucial for interpretation of imaging studies. Magnetic resonance cholangiography (MRC) enhanced with hepatobiliary contrast agent is useful in delineating biliary anatomy and pathology following cholecystectomy. In this article, we provide a protocol for contrast-enhanced MR imaging of the biliary tree. We also review the classification and imaging manifestations of post-cholecystectomy bile duct injuries in addition to other complications such as bilomas, retained/dropped gallstones, and vascular injuries.

The Early (2009-2017) Experience With Robot-assisted Cholecystectomy in New York State

OBJECTIVE

The aim of this study was to examine real-life patterns of care and patient outcomes associated with robot-assisted cholecystectomy (RAC) in New York State (NYS).

BACKGROUND

Although robotic assistance may offer some technological advantages, RACs are associated with higher procedural costs and longer operating times compared to traditional laparoscopic cholecystectomies (LCs). Evidence on long-term patient outcomes after RAC from large population-based datasets remains limited and inconsistent.

METHODS

Using NYS inpatient and ambulatory surgery data from the Statewide Planning and Research Cooperative System (2009-2017), we conducted bivariate and multivariate analyses to examine patterns of utilization, complications, and secondary procedures following cholecystectomies.

RESULTS

Among 299,306 minimally invasive cholecystectomies performed in NYS between 2009 and 2017, one thousand one hundred eighteen (0.4%) were robot-assisted. Compared to those undergoing LC, RAC patients were older, travelled further for surgery, and were more likely to have public insurance and preoperative comorbidities. RAC versus LC patients were more significantly likely to have conversions to open procedure (4.9% vs 2.8%), bile duct injuries (1.3% vs 0.4%), and major reconstructive interventions (0.6% vs 0.1%), longer median length of stay (3 vs 1 day), readmissions (7.3% vs 4.4%), and higher 12-month post-index surgery hospital charges (P < 0.01 for all estimates). Other postoperative complications decreased over time for LC but remained unchanged for RAC patients.

CONCLUSIONS

Patients receiving RAC in NYS experienced higher rates of complications compared to LC patients. Addressing patient-, surgeon-, and system-level factors associated with intra/postoperative complications and applying recently promulgated safe cholecystectomy strategies coupled with advanced imaging modalities like fluorescence cholangiography to RAC may improve patient outcomes.

Laparoscopic subtotal cholecystectomy: comparison of reconstituting and fenestrating techniques

BACKGROUND

Laparoscopic subtotal cholecystectomy (LSC) is a safe bailout procedure in situations when dissection of "critical view of safety" is not possible. After the proposed classification of subtotal cholecystectomy into "fenestrating" and "reconstituting" techniques in 2016, a comparative review of the outcomes of both methods is timely.

METHODS

A literature search of the PubMed, Cochrane Library, and Web of Science database was conducted up to January 31, 2020 for studies that reported LSC. Studies reporting LSC only in patients with Mirizzi syndrome or xanthogranulomatous cholecystitis were excluded. Our analysis includes 39 studies with 1784 cases of LSC. We report a comparison of outcomes between reconstituting and fenestrating LSC on 1505 cases [935 reconstituting (62.1%) and 570 fenestrating (37.9%)].

RESULTS

Following LSC, the rate of open conversion is 7.7%, hemorrhage is 0.4%, bile duct injury is 0.3%, bile leak is 15.4%, retained stone is 4.6%, subhepatic or subphrenic collection is 2.9%, superficial surgical site infection is 2.0% and 30-day mortality is 0.2%. 8.8% of patients required postoperative endoscopic retrograde cholangiopancreatography (ERCP), 1.1% required percutaneous intervention, and 2.2% required reoperation. Compared to reconstituting LSC, fenestrating LSC has a higher incidence of open conversion (n = 58, 10.2% vs. n = 43, 4.6%, p < 0.001), retained stones (n = 38, 6.7% vs. n = 38, 4.1%, p = 0.0253), subhepatic or subphrenic collections (n = 33, 5.8% vs. n = 13, 1.4%, p < 0.001), superficial surgical site infections (n = 18, 3.2% vs. n = 14, 1.5%, p = 0.0303), postoperative ERCP (n = 82, 14.4% vs. n = 62, 6.6%, p < 0.001), and need for reoperation (n = 20, 3.5% vs. n = 12, 1.3%, p < 0.001).

CONCLUSIONS

Although reconstituting LSC has better outcomes, both techniques are complementary. Intraoperative findings and surgical expertise impact the choice.

The educational quality of the critical view of safety in videos on youtube® versus specialized platforms: which is better? Critical view of safety in virtual resources

INTRODUCTION

The surgical education has evolved by adopting the visual platforms as a resource of searching. The videos complement the visual learning of surgical techniques of trainees, residents, and surgeons. YouTube® is the most frequently consulted platform in the surgical field. WebSurg® and GIBLIB® are two recognized medical platforms. The Critical View of Safety (CVS) is the most important and effective method to reduce the risk of bile duct injury (BDI) in laparoscopic cholecystectomy (LC). Reaching a satisfactory CVS is a crucial point. We evaluated the CVS of videos on WebSurg® and GIBLIB®, comparing the results with those of the worldwide most popular video platform.

METHODS

We performed a search under the term "Laparoscopic cholecystectomy" on the virtual platforms YouTube®, GIBLIB®, and WebSurg®. Three evaluators reviewed the 77 selected videos using the "Sanford-Strasberg' CVS score." The inferential analysis was performed between two groups: YouTube® and Non-YouTube (GIBLIB® and WebSurg®). The characteristics of each video were analyzed including country of origin, type of profile, number of views, and number of Likes.

RESULTS

Satisfactory CVS obtained from each of the platforms was GIBLIB® 40%; WebSurg® 44.4%; YouTube® 27.7%. The comparative analysis of CVS quality and CVS score for the Non-YouTube and YouTube® groups did not show a significant difference (p = 0.142, p = 0.377, respectively).

CONCLUSION

The videos on GIBLIB® and WebSurg® offer a higher probability of satisfactory CVS compared to YouTube®. Nevertheless, there is no significant superiority of GIBLIB® and WebSurg® over YouTube®.

Achieving the critical view of safety in the difficult laparoscopic cholecystectomy: a prospective study of predictors of failure

BACKGROUND

Bile duct injury rates for laparoscopic cholecystectomy (LC) remain higher than during open cholecystectomy. The "culture of safety" concept is based on demonstrating the critical view of safety (CVS) and/or correctly interpreting intraoperative cholangiography (IOC). However, the CVS may not always be achievable due to difficult anatomy or pathology. Safety may be enhanced if surgeons assess difficulties objectively, recognise instances where a CVS is unachievable and be familiar with recovery strategies.

AIMS AND METHODS

A prospective study was conducted to evaluate the achievability of the CVS during all consecutive LC performed over four years. The primary aim was to study the association between the inability to obtain the CVS and an objective measure of operative difficulty. The secondary aim was to identify preoperative and operative predictors indicating the use of alternate strategies to complete the operation safely.

RESULTS

The study included 1060 consecutive LC. The median age was 53 years, male to female ratio was 1:2.1 and 54.9% were emergency admissions. CVS was obtained in 84.2%, the majority being difficulty grade I or II (70.7%). Displaying the CVS failed in 167 LC (15.8%): including 55.6% of all difficulty grade IV LC and 92.3% of difficulty grade V. There were no biliary injuries or conversions.

CONCLUSION

All three components of the critical view of safety could not be demonstrated in one out of 6 consecutive laparoscopic cholecystectomies. Preoperative factors and operative difficulty grading can predict cases where the CVS may not be achievable. Adapting instrument selection and alternate dissection strategies would then need to be considered.

Fluorescent cholangiography significantly improves patient outcomes for laparoscopic cholecystectomy

BACKGROUND

Laparoscopic cholecystectomy (LC) is the most common elective abdominal surgery in the USA, with over 750,000 performed annually. Fluorescent cholangiography (FC) using indocyanine green dye (ICG) permits identification of extrahepatic biliary structures to facilitate dissection without requiring cystic duct cannulation. Achieving the "critical view of safety" with assistance of ICG cholangiogram may support identification of anatomy, safely reduce conversion to open procedures, and decrease operative time. We assess the utility of FC with respect to anatomic visualization during LC and its effects on patient outcomes.

METHODS

A retrospective review of a prospectively maintained database identified patients undergoing laparoscopic cholecystectomy at a single academic center from 2013 to 2019. Exclusion criteria were primary open and single incision cholecystectomy. Patient factors included age, sex, BMI, and Charlson Comorbidity Index. Outcomes included operative time, conversion to open procedure, length of stay (LOS), mortality rate, and 30-day complications. A multivariable logistic regression was performed to determine independent predictors for open conversion.

RESULTS

A total of 1389 patients underwent laparoscopic cholecystectomy. 69.8% were female; mean age 48.6 years (range 15-94), average BMI 29.4 kg/m² (13.3-55.6). 989 patients (71.2%) underwent LC without fluorescence and 400 (28.8%) underwent FC with ICG. 30-day mortality detected 2 cases in the non-ICG group and zero with ICG. ICG reduced operative time by 26.47 min per case (p < 0.0001). For patients with BMI ≥ 30 kg/m², operative duration for ICG vs non-ICG groups was 75.57 vs 104.9 min respectively (p < 0.0001). ICG required conversion to open at a rate of 1.5%, while non-ICG converted at a rate of 8.5% (p < 0.0001). Conversion rate remained significant with multivariable analysis (OR 0.212, p = 0.001). A total of 19 cases were aborted (1.35%), 8 in the ICG group (1.96%) and 11 in the non-ICG group (1.10%), these cases were not included in LC totals. Average LOS was 0.69 vs 1.54 days in the ICG compared to non-ICG LCs (p < 0.0001), respectively. Injuries were more common in the non-ICG group, with 9 patients sustaining Strasberg class A injuries in the non-ICG group and 2 in the ICG group. 1 CBDI occurred in the non-ICG group. There was no significant difference in 30-day complication rates between groups.

CONCLUSION

ICG cholangiography is a non-invasive adjunct to laparoscopic cholecystectomy, leading to improved patient outcomes with respect to operative times, decreased conversion to open procedures, and shorter length of hospitalization. Fluorescence cholangiography improves visualization of biliary anatomy, thereby decreasing rate of CBDI, Strasberg A injuries, and mortality. These findings support ICG as standard of care during laparoscopic cholecystectomy.

Fluorescence cholangiography enhances surgical residents’ biliary delineation skill for laparoscopic cholecystectomies

BACKGROUND

Laparoscopic cholecystectomy (LC) is a minimally invasive procedure, often performed by surgical residents (SRs). Fluorescence cholangiography (FC) enables real-time identification of biliary anatomy.

AIM

To investigate the benefit of FC for enhancing SRs’ identification skills.

METHODS

Prospective data was collected from January 2018 to June 2018 at our hospital. The study cohorts were the SRs (study group, n = 15) and the surgical staff (SS; control group, n = 9). Participants were assigned to watch videos of LCs with FC from five different patients who had gallbladder disease, and identify structures in the video clips (including cystic duct, common bile duct, common hepatic duct, and cystic artery), first without FC, and then with FC.

RESULTS

In the without-FC phase, the overall misidentification rate by SRs (21.7%) was greater than that of the SS (11.8%; P = 0.018), However, in the FC phase, the two groups did not significantly differ in misidentification rates (23.3% vs 23.3%, P = 0.99). Paired-structure analysis of the without-FC and with-FC phases for the SR group found a significantly higher misidentification rate in the without-FC phase than the with-FC phase (21.9% vs 10.9%; P < 0.01). However, misidentification rates in the with-FC phase did not significantly differ between SRs and SS.

CONCLUSION

FC enhanced identification skills of inexperienced surgeons during LC compared with conventional training. Combined with simulation-based video training, FC is a promising tool for enhancing technical and decision skills of trainees and inexperienced surgeons.

Application of Fluorescent Dyes in Visceral Surgery: State of the Art and Future Perspectives

Background

Through the improvement and implementation of advanced intraoperative imaging, the indications for intraoperative fluorescence have spread to various fields of visceral surgery. Indocyanine green (ICG)-based fluorescence angiography and the imaging systems using this certain dye are currently the cornerstone of intraoperative, fluorescence-based medical imaging.

Summary

The article focuses on principles and approaches of intraoperative fluorescence in general surgery. The current clinical practice of intraoperative fluorescence and its evidence are described. Emerging new fields of application are put in a perspective. Furthermore, the technique and possible pit-falls in the performance of intraoperative ICG fluorescence angiography are described in this review article.

Key Messages

Overall growing evidence suggests that intraoperative fluorescence imaging delivers valuable additional information to the surgeon, which might help to perform surgery more exactly and reduce perioperative complications. Perfusion assessment can be a helpful tool when performing critical anastomoses. There is evidence from prospective and randomized trials for the benefit of intraoperative ICG fluorescence angiography during esophageal reconstruction, colorectal surgery, and surgery for mesenteric ischemia. Most studies suggest the administration of 2.5-10 mg of ICG. Standardized settings and documentation are essential. The benefit of ICG fluorescence imaging for gastrointestinal sentinel node detection and detection of liver tumors and colorectal metastases of the liver cannot clearly be estimated duo to the small number of prospective studies. Critical points in the use of intraoperative fluorescence imaging remain the low standardization and reproducibility of the results and the associated difficulty in comparing the results of the existing trials. Furthermore, little is known about the influence of hemodynamic parameters on the quantitative assessment of ICG fluorescence during surgery.

True single-port cholecystectomy with ICG cholangiography through a single 15-mm trocar using the new surgical platform "symphonX": first human case study with a commercially available device

BACKGROUND

Minimally invasive single-port surgery is often associated with large incisions up to 2-3 cm, complicated handling due to the lack of triangulation, and instrument crossing. Aim of this prospective study was to perform true single-port surgery (cholecystectomy) without the use of assisting trocars using a new surgical platform that allows for triangulation incorporating robotic features, and to measure the perioperative outcome and cosmetic results.

METHODS

As the first European site after FDA and CE-mark approval, the new device has been introduced to our academic center. In patients with cholecystitis and cholecystolithiasis, the operation was performed through only one 15-mm trocar. For patients safety, intraoperative cholangiography using intravenous ICG and a standard Stryker 1588 system was routinely performed.

RESULTS

Symphonx was used in n = 12 patients for abdominal surgery (6 females, mean age 42.5 [30-77], mean BMI 26.2 [19.3-38.9]. A total of 8 patients underwent surgery using no additional ports besides the 15-mm trocar; in the remaining patients, one assisting instrument (3-5 mm) was used. Mean OR time was 107 [72-221] minutes. The postoperative course was uneventful in 11 patients; in one patient, a seroma at the surgical site required interventional drainage 1 month postoperatively. No intraoperative complications occurred.

CONCLUSION

This is the first human case series using the commercially available symphonX platform for abdominal laparoscopic surgery and the first series using the system without assisting instruments. Laparoscopic cholecystectomy in patients with cholecystitis and cholecystolithiasis using the symphonX platform through only one 15-mm trocar is feasible, safe, and more cost-efficient compared to robotic platforms.

[Evidence for standard surgical procedures: appendicitis, diverticulitis and cholecystitis]

BACKGROUND

Acute appendicitis, cholecystitis and sigmoid diverticulitis are the most common inflammatory visceral surgical emergencies. According to the principles of evidence-based medicine, treatment methods and surgical indications should be constantly questioned and validated by high-quality clinical studies.

OBJECTIVE

To identify and classify the current evidence on surgical treatment of acute appendicitis, cholecystitis and sigmoid diverticulitis.

MATERIAL AND METHODS

Targeted literature search in Medline, the Cochrane Library and study registers (clinicaltrials.gov).

RESULTS AND CONCLUSION

The indications for surgery are changing due to increasing numbers of high-quality clinical studies. Conservative treatment seems to be feasible in the early stages. In contrast, many surgical steps have not yet been sufficiently validated. Furthermore, there is a great need for high-quality, prospective randomized clinical trials, so that promotion of studies and the study culture in surgery should continue to be of greatest interest.