Conventional Endoscopic Procedures Research Articles

Endoscopic Balloon Dilatation of the Eustachian Tube via the Soft Palate Approach in Miniature Pigs.

The eustachian tube (ET) is one of the most complex organs in the human body, and its dysfunction may lead to a variety of diseases. In recent years, an increasing number of scholars have opted to conduct ET-related studies using large experimental animals such as miniature pigs or sheep, yielding promising results. Typically, conventional endoscopic procedures are performed through the nasal approach for large experimental animals. However, due to the elongated and narrow nasal cavity in these animals, transnasal surgeries are challenging. To address this issue, we explored an ET surgery approach via the soft palate. The animal was placed in a supine position. After endotracheal intubation under general anesthesia, a mouth opener was used to fully expose the upper palate. Local infiltration with diluted adrenal fluid was performed for anesthesia of the area. A sickle knife was then used to make a longitudinal soft palate incision at the junction of the soft and hard palates. After hemostasis, an endoscope was inserted into the nasopharynx cavity, allowing the visualization of the pharyngeal opening of the ET on the posterior lateral wall of the nasal cavity. Subsequently, a specialized pusher was used to insert a balloon into ET. The balloon was inflated, maintained at 10 bar for 2 min, and then removed. The incision in the soft palate was then sutured to ensure proper alignment. The soft palate healed well after the operation. This surgical approach is suitable for ET-related procedures in large experimental animals (e.g., miniature pigs, sheep, and dogs). The surgical procedure is simple, with a short surgical time, and wound healing is rapid. Under endoscopy, the pharyngeal opening of the ET is visible, and it is thus a good choice for procedures such as balloon dilation of the ET.

Capsule endoscopy and panendoscopy: A journey to the future of gastrointestinal endoscopy

In 2000, the small bowel capsule revolutionized the management of patients with small bowel disorders. Currently, the technological development achieved by the new models of double-headed endoscopic capsules, as miniaturized devices to evaluate the small bowel and colon [pan-intestinal capsule endoscopy (PCE)], makes this non-invasive procedure a disruptive concept for the management of patients with digestive disorders. This technology is expected to identify which patients will require conventional invasive endoscopic procedures (colonoscopy or balloon-assisted enteroscopy), based on the lesions detected by the capsule, i.e., those with an indication for biopsies or endoscopic treatment. The use of PCE in patients with inflammatory bowel diseases, namely Crohn’s disease, as well as in patients with iron deficiency anaemia and/or overt gastrointestinal (GI) bleeding, after a non-diagnostic upper endoscopy (esophagogastroduodenoscopy), enables an effective, safe and comfortable way to identify patients with relevant lesions, who should undergo subsequent invasive endoscopic procedures. The recent development of magnetically controlled capsule endoscopy to evaluate the upper GI tract, is a further step towards the possibility of an entirely non-invasive assessment of all the segments of the digestive tract, from mouth-to-anus, meeting the expectations of the early developers of capsule endoscopy.

Efficacy of a somatostatin analogue in a case of obscure gastrointestinal bleeding

Gastrointestinal bleeding can have many reasons and therapy becomes tricky when the diagnostic workout is not conclusive. We describe the case of an 89 y.o. woman with severe anemia and gastrointestinal bleeding of an unknown origin after conventional imaging and endoscopic procedures, thus averting endoscopic, angiographic or surgical approach. This condition required 39 blood transfusions in 2 months. Subcutaneous Octreotide, reducing gastrointestinal mucosal perfusion, achieved hemodynamic stability, improved blood cell count, and ended the blood transfusions. The use of somatostatin analogues can be considered in refractory patients with digestive bleedings of an unknown origin not susceptible of first line therapy.

Rescue Therapy in Gastric Mucosal Bleed using Haemospray™

Abstract Hemostatic agents are used extensively in endoscopic management of gastrointestinal (GI) bleed. Conventional endoscopic techniques such as thermal, mechanical (clipping), and injection treatment fail in up to 5%–10%. These agents are used particularly in anatomically challenging areas, lesions with poor visibility, diffuse bleeding, and friable tissues. We present an endoscopic management of gastric bleed in a 17-year-old male with leukemia (early T-cell precursor acute lymphoblastic leukemia), who underwent haplotransplant. Posttransplant patient developed pneumonia with acute respiratory distress syndrome requiring extracorporeal membrane oxygenation support with multiorgan dysfunction syndrome, graft versus host disease. During his hospital stay, he developed persistent GI bleed from multiple large excavating gastric ulcers. Multiple sessions of conventional hemostatic endoscopic procedures such as hemoclips, glue injection, and sclerosants failed to achieve hemostasis. Mucosal surface bleeds are difficult to manage hence we used Hemospray for achieving good hemostasis.

Stapes surgery for otosclerosis: Comparison of two techniques

Abstract BACKGROUND. Otosclerosis is a primary disease of the human otic capsule and stapes stage, being a frequent cause of conductive hearing loss in our country. The surgical treatment of choice is stapes surgery and prosthesis placement, performed in a conventional way, with a surgical microscope, for 30 years in our hospital. Recently, the option of performing stapes surgery endoscopically was introduced in our centre. OBJECTIVE. To evaluate the results in stapes surgery for otosclerosis between the conventional microscopic versus endoscopic procedure. MATERIAL AND METHODS. An observational, analytical and retrospective study on patients undergoing stapes surgery with microscopic and endoscopic technique was conducted. Data such as age, sex, state of origin, affected ear, as well as the technique used, duration of surgical intervention, hearing gain and postsurgical complications were taken. Data were taken from the records of patients admitted to the hospital. Descriptive statistics, Mann-Whitney U and Pearson’s Ji2, were used, considering a value of p≤ 0.05 as significant. RESULTS. No significant differences were found in surgical time or postoperative hearing between the two surgical techniques. The female sex was the most intervened. There was no significant difference between the post-surgical complications of both groups. CONCLUSION. Both procedures appear to be effective, with similar risks and postoperative results for the surgical treatment of otosclerosis.

Colonic diverticular bleeding: An update on pathogenesis and management

Colonic diverticular bleeding is the most common cause of lower gastrointestinal (GI) bleeding, which can be life-threatening and frequently recurrent. In recent years, the prevalence of diverticulosis has increased in developed countries, with a documented incidence of 50% in patients older than 60 years. Based on the evidence, the use of anticoagulants and/or antiplatelets in the elderly population has resulted in an increased incidence of acute diverticular bleeding. According to the literature, about 50% of patients with diverticular bleeding require a blood transfusion, and 18% – 53% need emergency surgery. Although endoscopic identification of the culprit diverticula and appropriate intervention is a challenge, the newer treatment modality, over-the-scope clip method (OTSC) has been demonstrated to be an effective endoscopic hemostatic method in severe diverticular bleeding, especially in cases of rebleeding after first-line conventional endoscopic procedures. In this review, we summarize the pathophysiology of colonic diverticulosis and diverticular bleeding, recent evidence in its management, and existing theories on various preventive strategies to control diverticular bleeding. We also discuss the efficacy and treatment outcome of the OTSC technique in controlling diverticular bleeding.

Surgical treatment of stent migration to pancreatic duct: case report

Endoprotheses are common in the treatment of biliary system disorders. Long term biliary plastic stenosis placement is known to cause several complications, 1.7-6 % of stents migrate. Treatment is mostly done by conventional endoscopic procedures, however 10 % will require surgical intervention. One reason for the failure of the endoscopic treatment is the de novo stent stone complex formation. In this case we are reporting a stent migration to the pancreatic duct and the de novo stent stone complex formation caused failure of the endoscopic treatment. We report the case of a 48-year-old Hispanic female who presents to the emergency department with abdominal pain for the last 72 hours. In her past medical history she reported recurrent abdominal pain similar to the actual episode. She also reported choledocholithiasis treated with ERCP and stent two years ago with no follow up. Pancreatitis was documented, diagnostic studies show a dilated Wirsung duct with three images that correspond to stones and a migrated stent in the lumen of the pancreatic duct. She was diagnosed with chronic pancreatitis. ERCP was unable to remove the stent. A pancreaticojejunostomy (Puestow procedure) and a stent removal was performed. The patient had an uncomplicated post operative course with complete resolution of abdominal pain. She remains asymptomatic tree months after surgery. Follow up after stent placement is important to avoid unintentional retention. In the case this occurs, first line treatment is the endoscopic approach, occasionally surgery is needed for resolution.Stent removal from pancreatic ductView Large Image Figure ViewerDownload Hi-res image Download (PPT)

5-Aminolevulinic acid-mediated photodynamic activity in patient-derived cholangiocarcinoma organoids

BackgroundAccurate diagnosis of the disease extension of cholangiocarcinoma (CCA) is often difficult in clinical practice. The diagnostic yield of conventional pre-operative imaging or endoscopic procedures is sometimes insufficient for the evaluation of longitudinal spreading of CCA. Here we investigated the usefulness of 5-aminolevulinic acid (5-ALA) for the pre- or intra-operative diagnosis of CCA, using patient-derived organoids. MethodsFour CCA- and two adjacent tissue-derived organoids were established. After 5-ALA treatment, we assessed their photodynamic activity using fluorescence microscopy. ResultsCCA organoids established from different patients showed diverse morphology in contrast to monolayer structures of non-tumor organoids, and had the ability to form subcutaneous tumors in immunodeficient mice. CCA organoids demonstrated remarkably high photodynamic activity based on higher accumulation of protoporphyrin IX as a metabolite of 5-ALA compared to non-tumor organoids (40–71% vs. < 4%, respectively). Importantly, cancer cell-specific high photodynamic activity distinguished the organoids originated from biliary stenotic lesions from those of non-stenotic lesions in a CCA patient. The high photodynamic activity did not depend on the expression profile of heme biosynthesis genes. ConclusionsDistinct 5-ALA-based photodynamic activity could have diagnostic potential for the discrimination of CCA from non-tumor tissues.

A Novel Snare Traction-Assisted Method During Endoscopic Resection for Upper Gastrointestinal Submucosal Tumors.

Background: Traction-assisted endoscopic resection is an approach to provide better procedural outcomes than conventional endoscopic procedure in treating gastric or esophageal epithelial lesions. Submucosal tumors (SMTs) are challenging to resect endoscopically due to the difficulty in exposure and high incidence of full-thickness resection. In this study, we investigated the efficacy of snare traction-assisted method, served as an "extra hand," for upper gastrointestinal SMTs. Methods: From June 2019 to May 2020, we used the snare traction-assisted method to treat 11 patients with 12 upper gastrointestinal SMTs in the Sixth Affiliated Hospital, Sun Yat-sen University. The duration of the procedures and the outcomes were recorded. Results: A total of 11 patients with 12 lesions were treated by snare traction-assisted endoscopic resection. The mean procedure time was 26.8 ± 8.3 minutes. En bloc resection was achieved in all the 12 lesions. The mean length of the specimens was 11.5 ± 4.0 mm. Full-thickness resection was performed in four lesions. The patients were discharged in 5.0 days after procedures without delayed bleeding or other complication reported. Conclusion: Snare traction-assisted method is an effective tool for endoscopic resection of upper gastrointestinal SMTs. Further prospective studies comparing the snare traction-assisted method with the conventional procedure are necessary.

Clinical adoption of robotics in endoscopy: Challenges and solutions.

The endoscope was traditionally used as a diagnostic instrument. In past decades, it has increasingly been adapted for therapeutic intents. Subsequently, the master–slave robotic concept was introduced into the field of endoscopy to potentially reduce the difficulty and complication rates of endoscopic therapeutic procedures. As interest in robotic endoscopy intensified, progressively more robotic endoscopic platforms were developed, tested, and introduced. Nevertheless, the future of robotic endoscopy hinges on the ability to meet specific clinical needs of procedurists. Three aspects are vital in ensuring continued success and clinical adoption of the robotic endoscope—demonstration of clinical safety and cost‐efficacy of the device, widespread availability of directed training opportunities to enhance technical skills and clinical decision‐making capabilities of the procedurist, and continued identification of new clinical applications beyond the current uses of the device. This review provides a brief discussion of the historical development of robotic endoscopy, current robotic endoscopic platforms, use of robotic endoscopy in conventional therapeutic endoscopic procedures, and the future of robotic endoscopy.

Pathologic interpretation of endoscopic ultrasound-guided fine needle aspiration cytology/biopsy for pancreatic lesions.

Pathologic interpretation of endoscopic ultrasound–guided fine needle aspiration (EUS-FNA) cytology/biopsy specimens is one of the most challenging tasks in cytology and surgical pathology practice, as the procedure often yields minimal amounts of diagnostic material and contains contaminants, such as blood cells and normal intestinal mucosa. EUS-FNA cytology/biopsy will nevertheless become a more popular procedure for evaluation of various pancreatic lesions because they are difficult to approach with conventional endoscopic procedures. Pathologists should understand the structural differences and limitations of EUS-FNA that make pathologic diagnosis difficult. Ancillary tests are available for differential diagnosis of EUS-FNA for various pancreatic lesions. Immunostains are the most commonly used ancillary tests, and pathologists should able to choose the necessary panel for differential diagnosis. Pathologists should review clinical history and radiologic and/or EUS findings before selecting an immunostain panel and making a pathologic diagnosis. In addition, one’s threshold of malignancy should be adjusted according to the appropriate clinical setting to avoid under-evaluation of pathologic diagnoses. Clinico-pathologic correlation is essential in pathologic evaluation of EUS-FNA for pancreatic lesions. Pathologists can reduce errors by correlating clinical and radiologic findings when evaluating EUS-FNA. Some molecular tests can be applied in differential diagnosis of pancreatic neoplastic and cystic lesions. Molecular data should be used as supportive evidence of a specific disease entity, rather than direct evidence, and should be correlated with clinico-pathologic findings to avoid errors in pathologic diagnosis.

The Impact of Artificial Intelligence in the Endoscopic Assessment of Premalignant and Malignant Esophageal Lesions: Present and Future.

In the gastroenterology field, the impact of artificial intelligence was investigated for the purposes of diagnostics, risk stratification of patients, improvement in quality of endoscopic procedures and early detection of neoplastic diseases, implementation of the best treatment strategy, and optimization of patient prognosis. Computer-assisted diagnostic systems to evaluate upper endoscopy images have recently emerged as a supporting tool in endoscopy due to the risks of misdiagnosis related to standard endoscopy and different expertise levels of endoscopists, time-consuming procedures, lack of availability of advanced procedures, increasing workloads, and development of endoscopic mass screening programs. Recent research has tended toward computerized, automatic, and real-time detection of lesions, which are approaches that offer utility in daily practice. Despite promising results, certain studies might overexaggerate the diagnostic accuracy of artificial systems, and several limitations remain to be overcome in the future. Therefore, additional multicenter randomized trials and the development of existent database platforms are needed to certify clinical implementation. This paper presents an overview of the literature and the current knowledge of the usefulness of different types of machine learning systems in the assessment of premalignant and malignant esophageal lesions via conventional and advanced endoscopic procedures. This study makes a presentation of the artificial intelligence terminology and refers also to the most prominent recent research on computer-assisted diagnosis of neoplasia on Barrett’s esophagus and early esophageal squamous cell carcinoma, and prediction of invasion depth in esophageal neoplasms. Furthermore, this review highlights the main directions of future doctor–computer collaborations in which machines are expected to improve the quality of medical action and routine clinical workflow, thus reducing the burden on physicians.

Efficacy of a novel hemostatic adhesive powder in patients with refractory upper gastrointestinal bleeding: a pilot study.

A new hemostatic adhesive powder (UI-EWD) has been developed to reduce the high re-bleeding rates associated with the currently available hemostatic powders. The current study aimed to assess the efficacy of UI-EWD as a salvage therapy for the treatment of refractory upper gastrointestinal bleeding (UGIB). A total of 17 consecutive patients who had failed to achieve hemostasis with conventional endoscopic procedures and had undergone treatment with UI-EWD for endoscopic hemostasis in refractory UGIB were prospectively enrolled in the study. We evaluated the success rate of initial hemostasis and rate of re-bleeding within 30 days. All patients underwent successful UI-EWD application at the bleeding site. Initial hemostasis occurred in 16/17 patients (94 %). Re-bleeding within 30 days occurred in 3/16 patients (19 %) who had achieved initial hemostasis. In the second-look endoscopy after 24 hours, hydrogel from UI-EWD was found attached at the bleeding site in 11/16 patients (69 %). UI-EWD has a high success rate for initial hemostasis in refractory UGIB and shows promising results in the prevention of re-bleeding.

Endoscopic closure of septal perforation in children with a vascularized flap on the ethmoidal artery

In the article, a new method of septal perforation closing in children with a flap on the ethmoid artery under endoscopic control is described. Unlike conventional endoscopic procedures described technique allows to close the perforation bilaterally. Using the author's technique, 6 children with septal perforation aged from 13 to 17 years (mean age 15.2±2.1) were operated on. In all patients, the perforation was completely closed. Thus, the method has shown high efficiency and safety, which allows it to be widely used in pediatric practice.

Transabdominal ultrasonographic features in the diagnosis of gastrointestinal lymphoma.

Gastrointestinal (GI) lymphoma is a challenging disease. We aimed to study and characterize the different endoscopic and transabdominal ultrasonography (TUS) features of gut lymphoma and to assess whether TUS has a complementary role to endoscopy in the diagnosis of GI lymphoma. This study was conducted on 21 patients with GI lymphoma, attending the GI endoscopy and liver unit, Endemic Medicine Department and Oncology Department in Kasr El Aini Hospital, Cairo University. Patients were subjected to GI endoscopy (upper endoscopy & colonoscopy) and transabdominal ultrasonography. The diagnosis was finally based on histopathology of core biopsies (obtained either endoscopically or by ultrasonography) and immuno-histochemistry. In all 21 patients with GI lymphoma included in this study, TUS could accurately determine the site of disease affection compared to endoscopy which is considered the gold standard for site localization. The main TUS pathologic features detected were increased wall thickness of the affected bowel segment with a mean value of (15.6±5.9 mm) and loss of layering pattern in 16 patients (76%). While the most common endoscopic features were ulcers and mass lesions accounting for 38% of the patients for each. Diffuse large B-cell lymphoma was found in 19 patients (90%). Because of endoscopic biopsies were conclusive in 14 patients (67%), TUS guided biopsy was resorted to in 7 patients and was diagnostic in all of them. Transabdominal ultrasonography is a useful tool in the diagnosis of GI lymphoma that is complementary to conventional diagnostic endoscopic procedures.

Technical Feasibility of a Guidetube for Various Endoscopic Procedures in Human Gastrointestinal Simulators.

Background/AimsMany gastrointestinal (GI) endoscopic procedures are difficult and cumbersome owing to the limitation of currently available endoscopic devices. This study aimed to develop an endoscopic guidetube for multipurpose endoscopic procedures and assess its use in a realistic GI endoscopic simulator. MethodsThe guidetube used is a soft overtube composed of neoprene and is designed to assist various endoscopic procedures on demand. In total, 15 types of procedures were performed in GI simulators. Four procedures were performed in the stomach model and 11 in the colon model. The procedures include repeated endoscopic insertion and foreign body removal in various positions. The mean insertion and procedure time were assessed in each session. All procedures were performed by 5 expert endoscopists. ResultsEndoscopic procedures with the new guidetube were faster and more effective than the conventional endoscopic techniques. The mean insertion time of the endoscope with the guidetube was significantly shorter than that without the guidetube. The guidetube was safely inserted without scratch using low pushing force. Objects of various sizes larger than the endoscopic channel were easily removed by the guidetube-assisted endoscopic procedures. ConclusionsThis preliminary study shows that guidetube-assisted endoscopic procedures are faster, easier, safer and cheaper than conventional endoscopic procedures.

Magnetic compression anastomosis for treatment of biliary anastomotic stricture after orthotopic liver transplantation

Objective To study the safety and efficacy of magnetic compression anastomosis (MCA) in treatment of biliary anastomotic stricture after orthotopic liver transplantation (LT). Methods Five patients who were treated unsuccessfully by ERCP were admitted to The First Affiliated Hospital of Xi'an Jiaotong University from 2012 January to 2018 May to undergo MCA. The treatment results were analyzed retrospectively. Results In four patients, the treatment was successful while in one patient it failed. For the four successful patients, the biliary stricture length was 2~4 mm. Re-canalization was achieved within 7~12 days and these patients were discharged home without any adverse events. Multiple plastic stents (in 2 patients) or full-covered self-expansion mental stents (in 2 patients) were inserted into the new fistulae after re-canalization. In two patients whose stents were removed, there was no recurrence of biliary strictures after follow-up for 64 months and 59 months, respectively. Conclusion The MCA technique is a revolutionary and effective method of performing interventional choledochocholedochostomy in patients with biliary anastomotic stricture after LT for whom the conventional endoscopic procedures were not successful. Key words: Magnetic compression anastomosis; Biliary anastomotic stricture; Liver transplantation

Sedation assisted by an endoscopist (SAE) for complex endoscopic procedures. Is it time to change the current guidelines?

Currently, sedation in endoscopic procedures is considered a necessary condition and a criterion of quality in digestive endoscopy. The role of SAE in conventional endoscopic procedures is clearly established in clinical guidelines, but this is not so clear in complex endoscopic procedures, such as ERCP. In recent years, numerous studies have been published, with results similar to those noticed in this article, endorsing the safety, efficacy and efficiency of SAE, when performed by properly trained staff.

Update in enteroscopy: New devices and new indications.

The present review provides an update of the currently available (proto-) types of device-assisted enteroscopy (DAE). In recent years, newly designed double- and single-balloon enteroscopes have emerged. They aim to improve insertion depth into the small bowel, and they also allow more efficient endoscopic interventions. Nowadays, almost all conventional endoscopic procedures are feasible using DAE, opening the door to new indications. Recently, more data have become available on pediatric DAE, DAE-assisted colonoscopy, and DAE in patients with altered anatomy, including DAE-assisted endoscopic retrograde cholangiopancreatography and direct cholangioscopy. Although new enteroscopes are being developed, few comparative studies are available in order to define which DAE suits best for each indication. It is the duty of the international endoscopy community to set up clinical research projects to provide answers to these open questions.

Common bile duct clearance of stones by open surgery, laparoscopic surgery, and endoscopic approaches (comparative study)

Background and aim of the work Around 10–18% of patients undergoing cholecystectomy for gallstones have common bile duct (CBD) stones. Treatment can be provided as open cholecystectomy plus open CBD exploration, laparoscopic cholecystectomy plus laparoscopic common bile duct exploration (LC+LCBDE), or precholecystectomy or postcholecystectomy endoscopic retrograde cholangio-pancreatography (ERCP) in two stages for CBD clearance. The aim of this study is to compare the CBD clearance rate by each procedure in a well-equipped tertiary center. Patients and methods A total of 250 patients with choledocholithiasis were included from the General Surgery Department, Sohag and Assiut University Hospitals, and managed randomly by either conventional surgery, endoscopic, or laparoscopic procedures. Results The ages of our patients ranged from 20 to 60 years (mean=40 years), with a slight female predominance (1.6 : 1); most of them presented with calcular obstruction (54.3%). However, there were also other presentations such as colic, cholangitis, or accidental discovery in 14.3, 10, and 21.5%, respectively. Patients were categorized randomly into three groups: group I included 100 patients (40%) who were treated by open choledocholithotomy and T-tube insertion; the operative time was 90 (60–180) min, with the success rate of the attempted procedures reaching 100%, and CBD clearance of stones was achieved in 95% of cases (five cases of missed stones). Hospital stay was 8 (5–12) days, with no mortality, and morbidity rate reached 15% in the form of wound infection, bile leak, and missed stone. The patient could return to work after 2 weeks (12–20 days). Group II included 100 patients (40%) treated by endoscopic sphincterotomy; basket extraction was performed in 45%, balloon in 25%, the combined maneuver in 15%, and mechanical lithotripsy in 13%, with failure of the technique in two cases (2%); the duration of the procedure was about 30 (20–45) min, with a success rate of attempted procedures of 98%, and CBD clearance of stones was achieved by 100%, with no mortality; the morbidity rate was 9% in the form of cholangitis (3%) and mild pancreatitis with hyperamylasemia (6%). The period of hospital stay was 1 (1–2) days and the patient returned to work after 3 (2–5) days. Group III included 50 patients (20%) treated by laparoscopic approaches: transcystic approaches in five cases and transcholedochotomy approaches in 45 cases. Choledochoscopic exploration was performed in almost all cases (45 cases) to detect, extract the stones, and test CBD clearance, and there was conversion to open techniques in one case. The time needed for this procedure was 123 (70–292) min, with CBD clearance of stones in 96% (two cases of missed stone), with no mortality, and a morbidity rate of about 10% in the form of mild hyperamylasemia, fever, and missed stone. The period of hospital stay was 3.2 (2–4) days, with return to work after 7 (5–10) days. Conclusion Both ERCP/LC and LCBDE were highly effective in CBD clearance, and equal in terms of the overall cost and patient acceptance. However, the overall duration of hospitalization was shorter for LCBDE with elimination of the potential risks of ERCP-associated pancreatitis, further procedures, and anesthesia risks. It is feasible, cost-effective, and ultimately should be available for most patients in each specialized center.