OBJECTIVE: Single-operator cholangioscopy (SOC) offer a diagnostic and therapeutic alternative with an improved optical resolution over conventional techniques; however, there are no standardized clinical practice guidelines for this technology. This evidence-based guideline from the Colombian Association of Digestive Endoscopy (ACED) intends to support patients, clinicians, and others in decisions about using in adults the SOC compared to endoscopic retrograde cholangiopancreatography (ERCP), to diagnose indeterminate biliary stricture and to manage difficult biliary stones.
METHODS: ACED created a multidisciplinary guideline panel balanced to minimize potential bias from conflicts of interest. Universidad de los Andes and the Colombia Grading of Recommendations Assessment, Development and Evaluation (GRADE) Network supported the guideline-development process, updating and performing systematic evidence reviews. The panel prioritized clinical questions and outcomes according to their importance for clinicians and patients. The GRADE approach was used, including GRADE Evidence-to-Decision frameworks.
RESULTS: The panel agreed on one recommendation for adult patients with indeterminate biliary strictures and one for adult patients with difficult biliary stones when comparing SOC versus ERCP.
CONCLUSIONS: For adult patients with indeterminate biliary strictures, the panel made a conditional recommendation for SOC with stricture pattern characterization over ERCP with brushing and/or biopsy for sensitivity, specificity, and procedure success rate outcomes. For the adult patients with difficult biliary stones the panel made conditional recommendation for SOC over ERCP with large-balloon dilation of papilla. Additional research is required on economic estimations of SOC and knowledge translation evaluations to implement SOC intervention in local contexts.

Surgery for hepatopancreaticobiliary (HPB) conditions is performed worldwide. This investigation aimed to develop a set of globally accepted procedural quality performance indicators (QPI) for HPB surgical procedures.
A systematic literature review generated a dataset of published QPI for hepatectomy, pancreatectomy, complex biliary surgery and cholecystectomy. Using a modified Delphi process, three rounds were conducted with working groups composed of self-nominating members of the International Hepatopancreaticobiliary Association (IHPBA). The final set of QPI was circulated to the full membership of the IHPBA for review.
Seven \"core\" indicators were agreed for hepatectomy, pancreatectomy, and complex biliary surgery (availability of specific services on site, a specialised surgical team with at least two certified HPB surgeons, a satisfactory institutional case volume, synoptic pathology reporting, undertaking of unplanned reintervention procedures within 90 days, the incidence of post-procedure bile leak and Clavien-Dindo grade ≥III complications and 90-day post-procedural mortality). Three further procedure specific QPI were proposed for pancreatectomy, six for hepatectomy and complex biliary surgery. Nine procedure-specific QPIs were proposed for cholecystectomy. The final set of proposed indicators were reviewed and approved by 102 IHPBA members from 34 countries.
This work presents a core set of internationally agreed QPI for HPB surgery.

1: ESGE recommends the use of endoscopic ultrasound-guided biliary drainage (EUS-BD) over percutaneous transhepatic biliary drainage (PTBD) after failed endoscopic retrograde cholangiopancreatography (ERCP) in malignant distal biliary obstruction when local expertise is available.Strong recommendation, moderate quality evidence. 2: ESGE suggests EUS-BD with hepaticogastrostomy only for malignant inoperable hilar biliary obstruction with a dilated left hepatic duct when inadequately drained by ERCP and/or PTBD in high volume expert centers.Weak recommendation, moderate quality evidence. 3: ESGE recommends that EUS-guided pancreatic duct (PD) drainage should only be considered in symptomatic patients with an obstructed PD when retrograde endoscopic intervention fails or is not possible.Strong recommendation, low quality evidence. 4: ESGE recommends rendezvous EUS techniques over transmural PD drainage in patients with favorable anatomy owing to its lower rate of adverse events.Strong recommendation, low quality evidence. 5: ESGE recommends that, in patients at high surgical risk, EUS-guided gallbladder drainage (GBD) should be favored over percutaneous gallbladder drainage where both techniques are available, owing to the lower rates of adverse events and need for re-interventions in EUS-GBD.Strong recommendation, high quality of evidence. 6: ESGE recommends EUS-guided gastroenterostomy (EUS-GE), in an expert setting, for malignant gastric outlet obstruction, as an alternative to enteral stenting or surgery.Strong recommendation, low quality evidence. 7: ESGE recommends that EUS-GE may be considered in the management of afferent loop syndrome, especially in the setting of malignancy or in poor surgical candidates. Strong recommendation, low quality evidence. 8: ESGE suggests that endoscopic ultrasound-directed transgastric ERCP (EDGE) can be offered, in expert centers, to patients with a Roux-en-Y gastric bypass following multidisciplinary decision-making, with the aim of overcoming the invasiveness of laparoscopy-assisted ERCP and the limitations of enteroscopy-assisted ERCP.Weak recommendation, low quality evidence.

Indeterminate strictures pose a therapeutic dilemma. In recent years, cholangioscopy has evolved and the availability of cholangioscopy has increased. However, the position of cholangioscopy in the diagnostic algorithm to diagnose malignancy have not been well established. We aim to develop a consensus statement regarding the clinical role of cholangioscopy in the diagnosis of indeterminate biliary strictures.
The international experts reviewed the evidence and modified the statements using a three-step modified Delphi method. Each statement achieves consensus when it has at least 80% agreement.
Nine final statements were formulated. An indeterminate biliary stricture is defined as that of uncertain etiology under imaging or tissue diagnosis. When available, cholangioscopic assessment and guided biopsy during the first round of ERCP may reduce the need to perform multiple procedures. Cholangioscopy are helpful in diagnosing malignant biliary strictures by both direct visualization and targeted biopsy. The absence of disease progression for at least 6 months is supportive of non-malignant etiology. Direct per-oral cholangioscopy provides the largest accessory channel, better image definition, with image enhancement but is technically demanding. Image enhancement during cholangioscopy may increase the diagnostic sensitivity of visual impression of malignant biliary strictures. Cholangioscopic imaging characteristics including tumor vessels, papillary projection, nodular or polypoid mass, and infiltrative lesions are highly suggestive for neoplastic/malignant biliary disease. The risk of cholangioscopy related cholangitis is higher than in standard ERCP, necessitating prophylactic antibiotics and ensuring adequate biliary drainage. Per-oral cholangioscopy may not be the modality of choice in the evaluation of distal biliary strictures due to inherent technical difficulties.
Evidence supports that cholangioscopy has an adjunct role to abdominal imaging and ERCP tissue acquisition in order to evaluate and diagnose indeterminate biliary strictures.

To further improve the standard of diagnosis and treatment of acute biliary tract infections in China, the Branch of Biliary Surgery, Society of Surgery, Chinese Medical Association has revised the guidelines for the diagnosis and treatment of acute biliary tract infections (2011).The guidelines describe the risk factors of acute biliary tract infections, propose diagnostic methods and severity classification criteria, and define the treatment of acute biliary tract infections and the standardized application of antibiotics. The treatment of acute biliary tract infection should be combined with surgical care, antimicrobial therapy and systemic management, and should be completed under the guidance of experienced surgical specialist. Reasonable selection of diagnosis and treatment measures, accurate understanding of surgical procedures and standardized use of antibiotics can achieve maximum treatment result for acute biliary tract infection.
为规范和提高我国急性胆道系统感染诊断和治疗水平，中华医学会外科学分会胆道外科学组依据最新文献和循证医学证据更新修订了《急性胆道系统感染的诊断和治疗指南（2011版）》。本指南阐述了急性胆道系统感染发病的危险因素及诊断和严重程度分级标准，并明确了急性胆道系统感染的治疗方法，希望能进一步规范抗菌药物的使用。急性胆道系统感染的治疗应综合外科干预、抗菌药物治疗和全身管理，在专科医师主导下，采取合理诊疗措施，准确把握手术方式和时机，规范使用抗菌药物，使患者获得最佳治疗获益。.

BACKGROUND: The Japanese Society of Hepato-Biliary-Pancreatic Surgery launched the clinical practice guidelines for the management of biliary tract cancers (cholangiocarcinoma, gallbladder cancer, and ampullary cancer) in 2007, then published the 2nd version in 2014.
METHODS: In this 3rd version, clinical questions (CQs) were proposed on six topics. The recommendation, grade for recommendation, and statement for each CQ were discussed and finalized by an evidence-based approach. Recommendations were graded as Grade 1 (strong) or Grade 2 (weak) according to the concepts of the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system.
RESULTS: The 31 CQs covered the six topics: (a) prophylactic treatment, (b) diagnosis, (c) biliary drainage, (d) surgical treatment, (e) chemotherapy, and (f) radiation therapy. In the 31 CQs, 14 recommendations were rated strong and 14 recommendations weak. The remaining three CQs had no recommendation. Each CQ includes a statement of how the recommendations were graded.
CONCLUSIONS: This latest guideline provides recommendations for important clinical aspects based on evidence. Future collaboration with the cancer registry will be key for assessing the guidelines and establishing new evidence.

Distal biliary strictures (DBS) are common and may be caused by both malignant and benign pathologies. While endoscopic procedures play a major role in their management, a comprehensive review of the subject is still lacking. Our consensus statements were formulated by a group of expert Asian pancreatico-biliary interventional endoscopists, following a proposal from the Digestive Endoscopy Society of Taiwan, the Thai Association for Gastrointestinal Endoscopy, and the Tokyo Conference of Asian Pancreato-biliary Interventional Endoscopy. Based on a literature review utilizing Medline, Cochrane library, and Embase databases, a total of 19 consensus statements on DBS were made on diagnosis, endoscopic drainage, benign biliary stricture, malignant biliary stricture, and management of recurrent biliary obstruction and other complications. Our consensus statements provide comprehensive guidance for the endoscopic management of DBS.

The standardized application of antibacterial agents in the treatment of biliary tract diseases is of great significance.On the basis of international and domestic guidelines and consensuses, combining with the actual situation of Chinese biliary tract infection, Study Group of biliary Tract Surgery in Chinese Society of Surgery of Chinese Medical Association and Enhanced Recovery After Surgery Committee of Chinese Research Hospital Association and Editorial Board of Chinese Journal of Surgery organized experts to make recommendations which adopted a problem-oriented approach on the severity grade of biliary tract infection, the protocol of specimen examination, the use of antibiotics, the indication of drug withdrawal, the agents application strategy of drug-resistant bacteria infection and special situation to guide surgeons getting the accurate judgement of the severity of biliary tract infection and the formulation of standard protocols for the use of antibacterial agents on the premise of following the bacteriological and drug resistance monitoring information.
抗菌药物规范化应用在胆道外科疾病的治疗中具有非常重要的意义。中华医学会外科学分会胆道外科学组、中国研究型医院学会加速康复外科专业委员会和中华外科杂志编辑部组织相关专家，在国内外相应指南和共识的基础上，针对我国胆道感染特点，采用问题导向的方式，对胆道外科感染分级、标本检验规范、抗菌药物使用、停药指征、耐药菌感染及特殊情况下的药物使用策略等问题提出了推荐意见，以便在遵循细菌学和耐药监测信息的前提下，指导临床准确判断胆道感染的严重程度，制定规范的抗菌药物使用方案。.

The definition of ambulatory surgery is that the patient is admitted, operated and discharged within a day (24 hours) , but does not include outpatient surgery. It can shorten the average hospital stay, reduce medical expenses, accelerate the recovery of patients, and has been approved to have great social and economic benefits.The main contents of this consensus include: (1)the establishment of ambulatory biliary surgery system, which involves the facilities building, team building, the construction of management systems, operation management, operation state analysis and benefit evaluation; (2)Patient selection criteria, pre-hospital assessment, surgical scheduling, preoperative education, anesthesia and management of adverse reactions after anesthesia, intraoperative application of general surgical principles and postoperative emergency plans, perioperative nursing; (3)Discharge criteria and pre-discharge assessment, post-discharge follow-up and rehabilitation guidance; (4) quality and safety control index system of ambulatory biliary surgery.The publication of this consensus is conducive to the establishment of ambulatory biliary surgery system, the evaluation of effectiveness and quality control, and the promotion of ambulatory biliary surgery.
日间手术的定义是患者在1 d(24 h)内完成入院、出院的手术或操作，不包含门诊手术。胆道外科日间手术可以缩短平均住院日、降低医疗费用、加速患者康复，具有较大的社会经济效益。为了给胆道外科日间手术规范化、标准化流程的建立提供参考，中国研究型医院学会加速康复外科专委会和中国日间手术合作联盟组织国内来自外科、麻醉、护理、日间手术管理方面的专家制定本共识。本共识的主要内容包括：(1)胆道外科日间手术的体系的建立，其中涉及日间手术设施和团队建设、日间手术管理制度制定、运行流程管理和效益评价；(2)患者选择标准、入院前评估、手术排程、术前宣教、麻醉及麻醉后不良反应的处理、术中注意事项和术后应急预案、围手术期护理；(3)出院标准及出院前评估、出院后随访及康复指导；(4)胆道外科日间手术质量安全评估。本共识的发布有利于日间手术体系的完善、效果评价及质量控制，有利于推动胆道外科日间手术的开展。.

The Tokyo Guidelines 2013 (TG13) for acute cholangitis and cholecystitis were globally disseminated and various clinical studies about the management of acute cholecystitis were reported by many researchers and clinicians from all over the world. The 1st edition of the Tokyo Guidelines 2007 (TG07) was revised in 2013. According to that revision, the TG13 diagnostic criteria of acute cholecystitis provided better specificity and higher diagnostic accuracy. Thorough our literature search about diagnostic criteria for acute cholecystitis, new and strong evidence that had been released from 2013 to 2017 was not found with serious and important issues about using TG13 diagnostic criteria of acute cholecystitis. On the other hand, the TG13 severity grading for acute cholecystitis has been validated in numerous studies. As a result of these reviews, the TG13 severity grading for acute cholecystitis was significantly associated with parameters including 30-day overall mortality, length of hospital stay, conversion rates to open surgery, and medical costs. In terms of severity assessment, breakthrough and intensive literature for revising severity grading was not reported. Consequently, TG13 diagnostic criteria and severity grading were judged from numerous validation studies as useful indicators in clinical practice and adopted as TG18/TG13 diagnostic criteria and severity grading of acute cholecystitis without any modification. Free full articles and mobile app of TG18 are available at: http://www.jshbps.jp/modules/en/index.php?content_id=47. Related clinical questions and references are also included.