Active clinical trials for "Duodenal Neoplasms"

Pancreaticojejunostomy is the key procedure of pancreaticoduodenectomy. The aim of our study is to investigate a new pancreaticojejunal (PJ) anastomosis procedure named "nonstented stump-closed pancreaticojejunostomy" in pancreatoduodenectomy, which could provide a feasible option to pancreatic surgeons for patients with pancreaticoduodenectomy.

The purpose of this study is to determine which stent type is effective in the decrease of postoperative stay and complications across pancreaticojejunostomy after pancreaticoduodenectomy.

This study is for people with advanced cancer of the digestive tract and cancer that cannot be completely removed by surgery. Radiation therapy is commonly used in the treatment of these types of cancer in combination with a chemotherapy drug, called 5-fluorouracil (5-FU). In this study, doctors will administer the standard dose of radiation therapy in combination with an investigational chemotherapy drug, called irinotecan. Irinotecan can decrease the size of tumors and also appears to increase the effectiveness of radiation. The purpose of this study is to determine the highest dose of irinotecan that can be given safely in combination with radiation therapy, and to determine the side effects when these two treatments are given together. Irinotecan is approved by the Food and Drug Administration (FDA) for the treatment of colon cancer, but is not approved for cancers of the digestive tract. However, the FDA is allowing its use in this research study.

it is hypothesized that long term outcomes of localized resection of GIST tumors located in the second part of the duodenum are comparable to those of the traditional treatment by radical resection of the head o pancreas and the entire duodenum

The purpose of this study is to clarify whether resecting pylorus-ring decreases delayed gastric emptying after pancreaticoduodenectomy and improves postoperative quality of life (QOL).

Pancreaticoduodenectomy (PD) is the treatment of choice for resectable periampullary cancer. PD is still associated with a relatively a high incidence of delayed gastric emptying. And, there are no acknowledged strategies to avoid DGE. Several feeding strategies have been investigated to cope with this problem. However, there is still no consensus concerning the best nutrition support method after pancreaticoduodenectomy. The purpose of this study is to determine the effect of nutrition support methods on DGE after pancreaticoduodenectomy: early enteral nutrition or total parenteral nutrition. Patients undergoing pancreatoduodenectomy will be randomized to receive early enteral nutrition (EN group), or Saline administration (Saline group), or oral intake only (Natural control). The EN group will receive standard enteral diet administered through a nasojejunal tube. Enteral nutrition will be started on the 1st postoperative day and increased daily by 20-40 ml up to the estimated level. The Saline group will receive saline administered through a nasojejunal tube beginning from the 1st postoperative day. Oral intake will not be restricted in all three group.

Duodenal carcinomas are the leading cause of mortality in patients with Familial Adenomatous Polyposis (FAP) who underwent prophylactic colorectal surgery. The purpose of this study is to determine wether celecoxib combined with ursodeoxycholic acid is an effective chemoprevention strategy to influence the progression of duodenal adenomas to carcinomas in patients with FAP.

Randomized study comparing endoscopic stent insertion strategy versus double-bypass surgery in non-resectable periampullary cancer

Improvements to treatment strategies for patients with cancers of the upper gastrointestinal tract have produced a large population of people who remain free from cancer recurrence in the long term following treatment. Surgery is the cornerstone of treatment for patients with these cancers, but while surgical removal of the tumour may offer the best chance of cure, these are major operations associated with specific long term complications. Weight loss and poor nutrition are common problems among patients who attain long-term cancer remission and cure after surgery. The mechanisms underlying these problems are not well understood and therefore treatment options are limited. Our research has demonstrated increased levels of chemical messengers (gut hormones) released from the gastrointestinal tract after meals in patients who have previously undergone this type of surgery. These chemical messengers play a role in controlling appetite and interest in food, and increased levels after surgery may reduce interest in eating. Understanding the role of gut hormones in the control of appetite may allow us to use certain medications to block gut hormones and hence increase appetite, allowing patients to eat more and regain weight, preventing nutritional problems after surgery. In this study, the investigators aim to determine whether exaggerated gut hormone secretion causes reduced appetite and interest in food after surgery. The information gained from this study may help us to develop treatments for patients with weight loss and nutritional problems after surgery.

Magnetic anastomosis has been attempted in biliary and intestinal reconstruction. Based on our initial experience, the investigators have successfully utilized magnetic anastomosis for biliojejunostomy and pancreaticojejunostomy during pancreaticoduodenectomy. The current study was to design a prospective and case-control study with utilization of magnetic compression anastomosis for pancreaticojejunostomy and biliojejunostomy in Whipple's procedure versus traditional hand-sewn technique on the postoperative morbidity, such as biliary/pancreatic fistula, hemorrhage, anastomotic stenosis, etc. In addition, the investigators are seeking to assess the safety and formation of the anastomosis by magnetic technique.