Establishment and Evaluation of Clinical Classification and Surgical Decision-making System for Biliary Dilatation：a National Special Disease Cohort Study in China
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.
• Patients who have been definitive diagnosed with biliary dilation.
• Patients aged between 0 and 80 years old, regardless of gender.
• 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.