IPMN, Pancreatic Clinical Trial
Official title:
A Long-term Follow-up Cohort Study in Patients With Intraductal Papillary Mucinous Neoplasm
Study objective: To establish a long-term follow-up cohort of patients with IPMN, study the follow-up, clinical outcomes and prognostic factors of patients with IPMN, and provide a basis for clinical decisions and guidelines. Study design: This is a real world, multicenter, prospective, observational cohort study
Baseline assessment will be conducted on IPMN patients who meet the inclusion conditions and are included in the study with informed consent, including: ① demographic characteristics (such as age, gender, etc.); ② Clinical features (such as symptoms, complications, past history, family history, living/eating habits); ③ Characteristics of laboratory indicators (such as pancreatic function, liver enzyme, bile duct enzyme, CA199, CEA in blood; CA199, CEA in cystic fluid, etc.); ④ Imaging features * (such as multiple or single lesions, diameter of cyst, whether there are mural nodules, diameter of main pancreatic duct, etc.); ⑤ Endoscopic ultrasound (EUS) features * (such as: cyst location, echo, maximum diameter, whether the cyst wall is thickened, wall nodules, the connection between the cyst and the main pancreatic duct, laser confocal endoscopy features, etc.); ⑥ Pathological information (cytology of cystic fluid; cytological smear of cystic lesion puncture, histopathology); ⑥ Molecular characteristics of cyst fluid (such as proteomics/mass spectrometry, new biomarkers, next generation sequencing (NGS), flora characteristics, etc.); ⑦ Treatment information (such as current medication, whether to have received endoscopic treatment, etc.). The follow-up contents include: outpatient follow-up (symptoms, laboratory indicators; keeping peripheral blood samples) every six months;, imaging follow-up (including enhanced pancreatic MR and EUS imaging; the first pancreatic MRI follow-up was conducted 6 months after enrollment to determine the stability of the lesions) at baseline and every 12 months thereafter. During the follow-up, if the patient died of various causes, the follow-up will be terminated; If enhanced nuclear magnetic resonance imaging or EUS imaging of the pancreas indicates worrisome features (WFs) or high-risk features (High risk stigmata, HRS), EUS-FNA ± nCLE should be performed (when performing EUS, perform contrast-enhanced ultrasonography on cystic lesions with mural nodules, and collect cystic fluid when puncturing some cystic lesions with sufficient volume). If the cytological/histological pathological results of FNA indicate cancer or high grade dysplasia (HGD), or/and cystic fluid cytological results are positive, surgical treatment is recommended; If the FNA and cyst fluid cytology results are negative, the patients with WF will be followed up 6 months later, while the HRS patients will be followed up 3 months later (whether to accept EUS examination is decided jointly by the follow-up physician and the patient). It is suggested to review EUS-FNA ± nCLE according to the imaging results. If the patient was advised to receive surgical treatment due to IPMN, the follow-up was terminated. ;
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