Germline Mutations Associated With Hereditary Pancreatic Cancer in Unselected Patients With Pancreatic...
Pancreatic CancerPancreatic AdenocarcinomaPancreatic cancer is a highly lethal disease. The cause of pancreatic cancer is multifactorial. However, around 10% of cases are associated with hereditary predisposition. Germline mutations in BRCA1 and BRCA2, CDKN2A, STK11, DNA mismatch repair (MMR) genes (MLH1, MSH2, MSH6, or PMS2), PALB2, FANCC, FANCG, and ATM have been associated with an increased risk for pancreatic cancer. The prevalence of these germline mutations varies across populations. For instance, the prevalence of BRCA1/2 germline mutations in high-risk populations can be up to 20%. On the other hand, in unselected patient population, the prevalence of BRCA1/2 germline mutations is 5-7%. In Mexican population, data on the prevalence of BRCA1/2 germline mutations in patients with pancreatic cancer are lacking. Identification of BRCA germline mutations in patients with pancreatic cancer has implications for treatment. Also, it allows genetic testing and counselling for family members. This study will determine the prevalence of germline mutations associated with hereditary pancreatic cancer using a comprehensive gene panel in an unselected cohort of patients with pancreatic adenocarcinoma in Mexico.
Comparison of EUS-FNB Biopsy Techniques of Solid Pancreatic Lesions
Pancreatic NeoplasmPatients with a diagnosis of solid pancreatic lesions evidenced by imaging studies (CT, MRI) and who undergo endoscopic ultrasound-guided biopsy will be selected. Biopsies will be taken using modified tip needles (FNB) three different methods (capillary by suction, capillary without suction and wet suction). From the results obtained from the pathology service, 3 variables will be assessed; Cellularity, blood contamination and suitability for a diagnosis.
Gastric Venous Reconstruction After Total Pancreatectomy
Pancreas CancerPancreatectomyTotal pancreatoduodenectomy (TP) is the standard surgical approach for treatment of extended pancreas tumors. If the gastric coronary vein has to be sacrificed for oncologic or for technical reasons in total pancreatectomy with splenectomy, gastric venous congestion (GVC) may result because all major venous draining routes are terminated. In the sequelae of GVC, gastric venous infarction ultimately leads to gastric perforation with abdominal sepsis. To avoid gastric venous infarction, partial or even total gastrectomy is usually performed in the event of GVC after TP. However, this significantly impacts the patient's quality of life. Reconstruction of gastric venous outflow represents a technical approach to overcome GVC and to avoid gastric venous infarction making (partial) gastrectomy unnecessary. The current study aims to assess the role of gastric venous outflow reconstruction in GVC after TP to prevent (partial) gastrectomy.
Endoscopic Ultrasound Evaluation of the Common Bile Duct in Patients With Obstructive Jaundice Due...
Obstructive JaundiceBilio-pancreatic TumorTo assess the size of the common bile duct in a large cohort of patients with jaundice following a malignant tumor of the head of the pancreas or the distal bile duct receiving a diagnostic EA for biopsy and / or for evaluation of tissue resectability.
Novel Crown-cut Biopsy Needle (FNB) vs Standard Aspiration Needle (FNA) for EUS-guided Diagnosis...
Pancreas NeoplasmPancreas CancerThe aim of this study is to compare tissue quality and molecular yield between a novel crown-cut biopsy needle (FNB) and a standard aspiration needle (FNA) for EUS-guided diagnosis of solid pancreatic lesions.
Perfusion Rate Assessment by Near-infrared Fluorescence in Gastrointestinal Anastomoses
Bowel ObstructionBowel Ischemia10 moreIn this prospective, non-randomized cohort study, real-time intraoperative visualization using near-infrared-fluorescence by indocyanine green injection (ICG-NIRF) is performed at two to three time points during procedures of upper GI, lower GI and hepatobiliary surgery with anastomosis formation in open or laparoscopic surgery. Postoperatively, a detailed software-based assessment of each recording is performed to determine the objective ICG-NIRF perfusion rate before and after anastomosis formation, which is then correlated with the 30 day postoperative clinical outcome including occurrence of anastomotic leak.
The Neutrophil-to-Lymphocyte Ratio to Exclude Pancreatic Fistula
Pancreas NeoplasmThere is still no consensus on whether drain fluid amylase (DFA) level, C-reactive protein (CRP) level, or complex scores predict clinically relevant postoperative pancreatic fistula (CR-POPF). The aim of this study is to determine the accuracy of simple biochemical parameters (leucocytes, neutrophils, lymphocytes, Neutrophil to Lymphocytes Ratio (NLR), at postoperative days 1 and 3) to exclude the diagnosis of CR-POPF.
Heparin-based Wet Suction Method in EUS Fine Needle Biopsy of Solid Pancreatic Mass
Endoscopic UltrasonographyEUS-FNA1 moreThe objective of this randomized cross-over trial is to evaluate whether Heparin based wet suction technique, compared with dry suction technique, shall present a higher quality tissue core by using quantitative macroscopic and microscopic scale.
Textbook Outcome as a Composite Outcome Measure in Laparoscopic Pancreaticoduodenectomy
Pancreatic NeoplasmsThis is a multicenter, retrospective, observational study. Textbook outcome is a composite outcome measure for surgical quality assessment. The aim of this study was to assess textbook outcome following laparoscopic pancreaticoduodenectomy in China, identify factors independently associated with achieving textbook outcome and analyze hospital variations regarding the textbook outcome after case-mix adjustment.
Two Cancers, One Gene. Why Some People in Families Develop Melanoma or Pancreas Cancer, While Still...
Pancreas CancerMelanomaIndividuals who are affected with pancreas cancer and melanoma as well as those without either cancer who have been identified as 1st or 2nd degree relatives of family members with pancreas cancer and melanoma will be asked to participate. The participant will be asked to complete a survey about their health and family history of cancer and to give a blood sample for specific gene testing and storage for future research studies.The overall goal of this study is to understand the factors that increase susceptibility and expression of pancreatic cancer and melanoma in high risk families.