Active clinical trials for "Anastomotic Leak"

The aim of this multi-centered study is to understand the epidemiology of infectious complications after gastrointestinal surgery in China. In total, 17 centers from China will prospectively register their patients undergo gastric or colorectal surgeries. Patient demographic data, operation information, and postoperative data including the infectious complications and the outcomes will be registered. We expect to include 2000 gastric and 2000 colorectal patients within one year and the study is expected to be finished in 2020.

The MA-PPING is a multicenter prospective observational study that includes patients undergoing surgery for gastrointestinal cancer. The study aims to map the oral and gut microbiome of patients diagnosed with pancreatic, esophageal or colorectal cancer during their surgical patient journey from the moment of diagnosis until full recovery (three months after surgery).

Anastomotic leakage (AL) is one of the most-feared postoperative complications after anterior resection of rectal cancer. This complication compromises both short term and long term outcome of patients. The incidence of AL after anterior resection was approximately 6-11%. Although several risk factors for AL such as male sex, smoking, tumor location, longer operative time, intraoperative blood loss had been reported in previous studies, the incidence of AL did not meet a significant decrease. So far there is no multi-site observational study on incidence and risk factors of AL after anterior resection in China, therefore this study aims to work on this issue and provide evidence for clinical practice.

Higher anastomotic leakage (AL) rate is reported after ileosigmoid (ISA) or ileorectal anastomosis (IRA) in total or subtotal colectomy (TSC) compared to colonic or colorectal anastomosis. An AL reduction in these cases may improve short and long terms outcomes significantly. Current evidence remains insufficient to assess AL risk after TSC, based on single-center studies or small cases series. The investigators aim to analyse and identify potential risk factors to AL following TSC and ISA or IRA, both preoperative and intraoperative in order to prevent surgical complications. The study is set up as a retrospective multicentre observational study. Inclusion criteria are patients (1) over 18 years old, (2) underwent restorative TSC with ISA or IRA anastomosis, (3) with/without loop ileostomy (4) between 2013-2019. Exclusion criteria are: (1) non-restorative TSC, (2) previous colorectal resection, (3) deferred anastomosis in trauma surgery and (4) other surgical resection in the same procedure. AL will be defined as a defect of the integrity of the intestinal wall at the anastomotic site leading to a communication of the intra and extraluminal or a pelvic abscess adjacent to the anastomosis according to the definition set by de International Study Group of Rectal Cancer. AL requiring no active therapeutic intervention will be classified as Grade A. AL requiring active therapeutic intervention (antibiotics and percutaneous drainage) but manageable without relaparotomy will be classified as Grade B and AL requiring re-intervention were classified as Grade C. Multivariable logistic regression model will be used in order to assess potential AL risk factors. p value <0,05 will be consider to indicate statistical significance. Primary outcome is to assess potential risk factors to AL after restorative (ISA or IRA) TSC. Secondary outcomes are to identify risk factors to associated postoperative morbidity, mortality and re-admissions. Data will be collected in each participating center enrolled in the study by the assigned principal investigator, confidentially and codified. Data will be sent to the study principal investigator. Database, patients code and email address will be provided at the study inclusion.

Background: postoperative pancreatic fistula (POPF) remains the most important morbidity after pancreaticoduodenectomy (PD). There is no consensual technique for pancreatic reconstruction and many surgeons use a transanastomotic drain. Currently, the stents used are not degradable and they can cause obstruction, stricture and pancreatitis. The use of biodegradable stents that disappear a few months after the intervention could have a role in the prevention of pancreaticojejunostomy complications. Material and method: A single-center prospective randomized study was planned with patients undergoing PD. A duct-to-mucosa end-to-side anastomosis is performed for the pancreaticojejunal anastomosis and the stent is placed from the pancreatic duct to the jejunum. The primary outcome of the study is the evaluation of the presence of POPF (drainage fluid amylase value of > 5000 U/L on the first day).

Esophageal resection becomes a routine surgical procedure in many medical centers. Usually reconstruction after esophagectomy is achieved by gastric pull-up with cervical or intrathoracic anastomosis. The only blood supply for this gastric tube is by right gastroepiploic arcade. Bad or borderline perfusion of gastric tube is the main reason for future anastomotic leaks or strictures. The investigators suggest to measure components of venous blood gases (O2, pH, CO2, lactate) from the area of future anastomosis before construction of gastric tube and just before creation of anastomosis ( after 15-30 minutes), compare the results of this analysis with systemic venous blood. The investigators suppose that elevation of acid features of blood (pH decreasing, lactate increasing etc.) as expression of tissue ischemia after gastric tube creation maybe the significant predictive sign for future anastomotic leaks or strictures. After operation the investigators plan to find relationship between the blood gas changes and rate of anastomotic leak and stricture. This is prospective study. Anticipated cohort of 50 patients

The investigators perform a case-control study to compare preparation before elective colorectal surgery. The first group is a prospective patient - registry in all patients with mechanical bowel preparation (MBP) and oral antibiotic prophylaxis the day before colorectal surgery. The second group is a historic collective of patients with MBP only and colorectal surgery. The cases were matches in American Society of Anesthesiologists (ASA) physical status classification system, BMI, operative procedure and risk factors.

Primary Endpoint: The main objective of this National Registry is to identify the incidence and to analyse the risk factors for anastomotic leakage in rectal cancer surgery From the operational point of view, the aim of this Registry is to systematize the collection of information on the different surgical services. This Registry claims to have National audit functions, allowing thus the knowledge of the procedures performed at each center that could enable the establishment of the best standard of care. Secondary Endpoints: To determine the real incidence of anastomotic leakage according to the different locations and techniques: uniform definition of anastomotic leakage. To analyze the preoperative risk factors of anastomotic leakage: PATIENT FACTOR. To analyse the variability in the practice of rectal anastomosis: SURGEON FACTOR. To analyse the influence of different stapling devices in rectal anastomosis: INSTRUMENTAL FACTOR To know the current treatment of anastomotic leakage and the associated morbidity and mortality. To create and validate an anastomotic leakage predictive Score.