Establish Diagnostic Models Based on Portal Venous Blood for Pancreatic Cancer

Study Overview
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Brief Summary
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Explore new markers based on portal venous blood sampling to establish novel diagnostic models for identification of malignant pancreatic mass.

Detailed Description
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EUS-FNA combined cytology detection is an important method for clinical diagnosis of squamous cell carcinoma. However, due to factors such as sampling method, smear making, staining technique, lower levels of the pathologists and other factors, its diagnostic sensitivity is still not very satisfactory. Poor diagnostic efficacy usually means another puncture, longer hospital stay, more medications and a higher incidence of adverse events. Missed diagnosis continuously directly delays the treatment time of the disease and seriously affects the patient's prognosis. Therefore, how to use new technologies to improve the differential diagnosis efficiency of benign and malignant pancreatic occupants is the key to improving the prognosis of diabetic cancer patients. The portal vein blood comes from the venous tract, including the blood flowing from the plasma to the liver. By collecting blood samples from the patient's portal vein, clinicians can separate more information from the patient. Studies have shown that the portal vein blood can be collected by ultrasound endoscopic puncture. This method is less traumatic, convenient and safe, and more information about the retinal tissue can be obtained. It is an important way to improve the efficiency of patient diagnosis. This study intends to use ultrasound endoscopic puncture technology to obtain portal vein blood, and use big data and ctDNA, metabolomics, exosomes and other different omics methods to screen the potential value of volume-occupying benign and malignant differential diagnosis markers in portal vein blood. Peripheral blood will simultaneously be collected to evaluate the efficacy of these newly developed markers.

Official Title
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Establish a Diagnostic Model Based on Multiple Molecule Profiling and Certain Established Markers for Identification of Pancreatic Cancer

Conditions
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Diagnoses Disease

Intervention / Treatment
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* Diagnostic Test: Endoscopic Ultrasound (EUS), Fine Needle Aspiration


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: age 18-75 years,male or female diagnosis or suspection of solid pancreatic mass based on previous imaging examination (ultrasonography, CT or MRI) lesion diameter larger than 1 cm signed informed consent letter Exclusion Criteria: pregnant female Pancreatic cystic lesions Anticoagulant/antiplatelet therapy cannot be suspended unable or refuse to provide informed consent Coagulopathy (platelet count < 50× 103/μL,international normalized ratio > 1.5) Severe cardiopulmonary dysfunction that cannot tolerate intravenous anesthesia with history of mental disease other medical conditions that are not suitable for EUS-FNA

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| pancreatic mass diagnosed benign<br>Through pathological examination, radiological examination and follow-up, these patients are finally diagnosed with benign pancreatic mass. | Diagnostic Test: Endoscopic Ultrasound (EUS), Fine Needle Aspiration<br>* Endoscopic Ultrasound (EUS), Fine Needle Aspiration, which are routine clinical operations<br>|
| pancreatic mass diagnosed malignant<br>Through pathological examination, radiological examination and follow-up, these patients are finally diagnosed with pancreaitic cancer. | Diagnostic Test: Endoscopic Ultrasound (EUS), Fine Needle Aspiration<br>* Endoscopic Ultrasound (EUS), Fine Needle Aspiration, which are routine clinical operations<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Status of survival | To varify if the patients died becaused of malignant pancreatic cancer. | through study completion, an average of 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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diagnosis and pancreatic cancer