[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100583797":3},{"organization":4,"outcomesModule":7,"designInfo":23,"detailedDescription":25,"studyPopulation":26,"armGroups":27,"interventions":22,"overallOfficials":34,"centralContacts":38,"locations":47,"responsibleParty":65,"collaborators":22,"id":68,"slug":22,"hasResults":69,"nctId":70,"briefTitle":71,"officialTitle":72,"acronym":22,"eligibilityCriteria":73,"healthyVolunteers":69,"sex":74,"minAge":22,"maxAge":75,"enrollmentInfo":76,"targetDuration":22,"studyType":79,"phases":22,"briefSummary":80,"conditions":81,"keywords":83,"overallStatus":49,"whyStopped":22,"lastUpdateSubmitDate":89,"lastUpdatePostDateStruct":90,"startDateStruct":93,"completionDateStruct":95,"leadSponsor":97,"locationsCount":98},{"fullName":5,"class":6},"Beijing Tsinghua Chang Gung Hospital","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":13,"otherOutcomes":22},[9],{"measure":10,"description":11,"timeFrame":12},"Long-term complications rate","For patients who have undergone surgical treatment, the occurrences of long-term postoperative complications include recurrent cholangitis, pancreatitis, bile duct stones, liver failure, and other such conditions.","After 30 or 90 days of surgery",[14,18],{"measure":15,"description":16,"timeFrame":17},"Malignant transformation rate","The occurrence of malignant transformation associated with bile duct dilatation","through study completion, an average of 10 year",{"measure":19,"description":20,"timeFrame":21},"Perioperative complication rate","The occurrence of perioperative complications, including bile leakage, pancreatic leakage, liver failure, bacteremia, abdominal fluid accumulation, and intra-abdominal infections, among others.","Within 30 or 90 days postoperatively",null,{"allocation":22,"interventionModel":22,"interventionModelDescription":22,"primaryPurpose":22,"observationalModel":24,"timePerspective":6,"maskingInfo":22},"COHORT","Biliary Dilatation(BD) is a complex benign biliary disorder prevalent in East Asia, for which surgical resection remains the sole curative approach necessitating prompt intervention upon diagnosis. Nevertheless, critical aspects including disease subtyping, standardized surgical management protocols, and prognostic determinants remain inadequately defined. This multicenter ambidirectional cohort study aims to consecutively enroll BD patients across 25 tertiary medical centers in China, systematically collecting comprehensive life-cycle data encompassing demographic profiles, clinical baseline characteristics, laboratory\u002Fimaging findings, biliary-specific biomarkers, and longitudinal follow-up records to establish a nationally representative Chinese BD cohort. Building upon this cohort, the study objectives are structured as follows:\n\n1. Establishment and Maintenance: To construct and perpetually update a multicenter clinical database for BD research in China, ensuring data integrity and accessibility.\n2. Age-Stratified Comparative Analysis: To delineate and contrast the differential patterns of disease progression, surgical decision-making paradigms, and postoperative surveillance strategies between adult and pediatric BD populations.\n3. Natural History Characterization: To elucidate disease trajectories, morphological evolution, comorbidity progression, malignant transformation risks, and evidence-based surgical indications\u002Ftiming in non-operated asymptomatic BD patients.\n4. Therapeutic Standardization: To define optimal surgical modalities (with emphasis on Todani classification types I, IVa, and V) and critically evaluate the efficacy-safety profile of standardized operative approaches through multidimensional outcome assessments.\n5. Quality-of-Life Quantification: To systematically evaluate postoperative quality of life (QoL) metrics across BD subtypes and identify modifiable determinants influencing long-term patient-reported outcomes.\n6. Epidemiological Benchmarking: To synthesize epidemiological patterns, establish evidence-based clinical endpoints for surgical interventions, and define reference standards for treatment-related risks and QoL benchmarks in standardized BD management.","All patients with a definitive diagnosis of biliary dilation in the participating centers will be included.",[28,31],{"label":29,"type":22,"description":30,"interventionNames":22},"Retrospective cohort","This cohort retrospectively collects all available clinical data and prognostic information of all patients who were previously diagnosed with biliary dilatation in the participating centers, and compares the various outcome indicators of two groups or multiple groups.",{"label":32,"type":22,"description":33,"interventionNames":22},"Prospective cohort","This cohort prospectively enrolls all patients with a clear diagnosis of biliary dilatation in each participating center, tracks and observes them for a certain period of time, and compares the various outcome indicators of two groups or multiple groups. Additionally, it conducts prospective follow-ups on the patients in the retrospective cohort.",[35],{"name":36,"affiliation":5,"role":37},"Shuo Jin, PhD","PRINCIPAL_INVESTIGATOR",[39,44],{"name":40,"role":41,"phone":42,"phoneExt":22,"email":43},"Changzhen Yang, MD","CONTACT","+8618810915262","809262038@qq.com",{"name":36,"role":41,"phone":45,"phoneExt":22,"email":46},"+8618611172714","jsa01263@btch.edu.cn",[48],{"facility":5,"status":49,"city":50,"state":51,"zip":52,"country":53,"countryCode":54,"cosmosGeoPoint":55,"geoPoint":60,"contacts":61},"RECRUITING","Beijing","Beijing Municipality","102218","China","CN",{"type":56,"coordinates":57},"Point",[58,59],116.39723,39.9075,{"lat":59,"lon":58},[62,64],{"name":36,"role":41,"phone":45,"phoneExt":22,"email":63},"jsa01263@163.com",{"name":40,"role":41,"phone":42,"phoneExt":22,"email":43},{"type":37,"investigatorFullName":66,"investigatorTitle":67,"investigatorAffiliation":5,"oldNameTitle":22,"oldOrganization":22},"Shuo Jin","Associate Chief Physician","100583797",false,"NCT06881004","Biliary Dilatation National Special Disease Cohort in China","Establishment and Evaluation of Clinical Classification and Surgical Decision-making System for Biliary Dilatation：a National Special Disease Cohort Study in China","Inclusion Criteria:\n\n1. Patients who have been definitive diagnosed with biliary dilation.\n2. Patients aged between 0 and 80 years old, regardless of gender.\n3. In line with the principle of informed consent: For the retrospective cohort of biliary dilation, exemption from signing the informed consent form is applied for, while for the prospective cohort, signing the informed consent form is required.\n\nExclusion Criteria:\n\n* None","ALL","80 Years",{"count":77,"type":78},6000,"ESTIMATED","OBSERVATIONAL","This study is a multicenter, bidirectional cohort study aimed at continuously enrolling patients with biliary dilatation from 25 medical centers in China. It will collect comprehensive life-cycle data from the cohort to establish a Chinese cohort for bile duct dilatation. Based on this cohort, the study seeks to clarify the epidemiological characteristics, pathological features, standard classification, disease progression, cancer risk, and optimal timing for surgical intervention in patients with bile duct dilatation. Additionally, it will compare the perioperative risks, long-term outcomes, and quality of life among different types of patients (including Todani types I, IVa, and V) following surgical treatment, to establish standardized surgical treatment strategies for each type.",[82],"Choledochal Cyst",[84,85,86,87,88],"Biliary dilatation","Cohort study","Clinical database","Surgical treatment","Long-term outcome","2026-06-22",{"date":91,"type":92},"2026-06-23","ACTUAL",{"date":94,"type":92},"2025-03-19",{"date":96,"type":78},"2035-03-31",{"name":5,"class":6},1]