Clinical Research Directory

Leakage Rate of Ileo-COlic Sutured Anastomosis After Right Hemicolectomy

The primary aim of the study is to show that the ileo-colic anastomosis leakage rate until the first 30 days after surgery using MonoPlus® suture material for anastomosis construction after right hemicolectomy is not inferior to the anastomosis leakage rate published in the literature for totally handsewn or stapled-handsewn ileo-colic anastomosis.

Post-Market Study of the Signia Circular Stapler With Tri-Staple Technology in Left-sided Colon, Sigmoid, and Rectal Resections

The purpose of this study is to evaluate the safety and performance of the Signia™ power handle, Signia™ circular adapter, and Signia™ Tri-Staple™ 2.0 circular reloads (hereafter referred to as Signia™ circular stapler) in patients undergoing left sided colon, sigmoid, or rectal resections in a post market setting.

CRP Point-of-care Testing Trajectory, a Predictive Factor for Anastomotic Leak in Elective Colorectal Surgery

In colorectal surgery, one of the most feared complications is anastomotic leak (AL). To limit the consequences of AL, it must be diagnosed as early as possible, before it becomes symptomatic. Digestive surgeons use a variety of pre-, per- and post-operative techniques to reduce the rate of anastomotic fistula, but the risk persists, with a rate of 7% reported in the literature. It has been shown that the value of CRP between D1 and D5 correlates with the risk of AL, and that the trajectory between two consecutive days (D1 to D5 post-op) is the most discriminating element in predicting the risk of AF. This assay requires repeated intravenous sampling, which is the opposite of simplifying care. CRP point-of-care testing (POCT) is used in clinical practice, notably in pediatrics and outpatient medicine (in children and adults) to help prescribe probabilistic antibiotic therapy, as the instantaneousness of the result has an impact on patient management. For the diagnosis of AL, CRP POCT assessment could reduce the number of blood samples taken, shorten the time between sampling and medical management in cases of suspected AL, and thus improve the patient's post-operative experience.

Registry Study of People Who Are Having an Esophagectomy and Are at High Risk of Anastomotic Leak

The main purpose of this study is to look at how often anastomotic leaks happen in participants who are at high risk of these leaks and are eligible to receive gastric preconditioning by percutaneous angioembolization before an esophagectomy.

Comparison of Postoperative Anal Function Between Parks and Bacon Techniques in Low Rectal Cancer

The goal of this study is to compare the postoperative anal function of patients with ultra-low rectal cancer after Parks operation (colon anal anastomosis) and Bacon operation (colon anal pull-out anastomosis), which may provide clinical evidence for the improvement of anal function and quality of life. The main questions it aims to answer are: the difference of anal function 1 year after surgery type of study: clinical trial participant population: patients with low rectal cancer Participants will receive Parks operation of Bacon operation If there is a comparison group: Researchers will compare Parks and Bacon operation to see if the anal function 1 year after surgery is different.

Endoluminal Vacuum Therapy to Prevent Anastomotic Leakage After Esophagectomy Due to Esophageal Cancer

A prospective, multi-centre, exploratory and observational one-arm study to evaluate preventive Endoluminal Vacuum Therapy(pEVT) to prevent anastomotic leakage after esophagectomy due to esophageal cancer. The main objective is to evaluate the potential protective effect of prophylactic preemptive endoluminal vacuum therapy on esophageal-gastric anastomosis dehiscence after esophagectomy.

A Safety and Effectiveness Prospective Blinded Clinical Study to Validate xBar System as Monitoring Tool for Anastomotic Leaks Detection

Purpose: To validate the safety and effectiveness of xBar monitoring tool for detection of post-operative anastomotic leaks in subjects undergoing rectal/sigmoid resections with anastomosis. The clinical team is blinded to the leak detection of the xBar system.

Anastomotic Leakage After Colorectal Surgery.

Anastomotic leakage (AL) is a severe complication after colorectal surgery, with incidence rates of 2-30%. This prospective, single-center observational cohort study aims to identify and quantify independent risk factors for AL, determine its incidence and impact on outcomes, and develop a predictive model. Approximately 430 patients undergoing colorectal resection with anastomosis will be enrolled from August 2025 to August 2026. Risk factors will be assessed preoperatively, intraoperatively, and postoperatively. AL will be defined and graded per the International Study Group of Rectal Cancer (ISGRC) criteria.

PARLAR-02 Trial：Modified Transanal Drainage Tube Use for Preventing Anastomotic Leakage

Surgical resection remains the primary treatment for rectal cancer, but the postoperative incidence of anastomotic leakage (AL) is relatively high. AL not only increases the medical burden on patients, prolongs hospital stays, raises the need for secondary surgery, and elevates perioperative mortality, but also increases the long-term risk of local recurrence and reduces survival rates. There is an urgent need for a simple, effective treatment method that minimizes the burden on patients to prevent anastomotic leakage. The preoperative placement of a transanal drainage tube (TDT) is believed to effectively drain gas and feces from the intestinal lumen, thereby reducing intestinal pressure and alleviating tension at the anastomotic site, thus preventing AL. Previous studies have shown that traditional drainage tubes cannot effectively prevent leakage. Given the limitations of existing research on traditional TDTs, we plan to use a modified TDT (which allows postoperative irrigation and utilizes a balloon to block feces from adversely affecting the anastomosis) to conduct a randomized, parallel-controlled trial. This study aims to further investigate the role of the modified TDT in preventing and treating anastomotic leakage following rectal surgery

Resumption of Enteral Feeding After Bowel Anastomosis

Resumption of oral feeding after small intestine surgery is a matter of controversy .Some surgeons advocate early resumption while others don't.early feeding is initiated as soon as the patient recovers from effects of anaesthesia, while late resumption is started after 24-48 hours after surgery.Recent studies and guidelines suggest early feeding. The aim of this study is to compare the early and late resumption of oral feeding.

Evaluation of Colonic Perfusion by Indocyanine Green Angiography During Colorectal Surgery

Despite advancements in technology and improved surgical techniques, the occurrence of anastomotic leakage (AL) after colorectal surgery remains between 4% and 30%. AL is a feared complication associated with significant morbidity and mortality in colorectal surgery, with its causes being multifaceted. Inadequate blood supply to the intestines is believed to be a major contributor to its development. Various methods have been proposed to objectively assess intestinal perfusion beyond the subjective evaluation done by surgeons during surgery. However, these methods face challenges such as poor reproducibility and high costs, limiting their routine use. In recent years, indocyanine green (ICG) angiography has emerged as a tool for assessing organ perfusion in various medical scenarios. However, only one randomized clinical trial has been conducted regarding its use in evaluating colorectal surgery outcomes, which found that while ICG angiography sometimes led to additional bowel resection, it didn't significantly reduce the rate of anastomotic leaks compared to conventional methods. This could be due to the trial's small sample size, potentially reducing its statistical power. This study aims to investigate whether ICG angiography can lower the rate of anastomotic leaks during laparoscopic colorectal cancer surgery, while also examining its impact on resection margins, perioperative morbidity, and mortality rates. A total of 561 subjects undergoing laparoscopic colorectal surgery for malignancy, will be randomized in 2 arms: A Study Group undergoing ICG angiography (i.e. colonic perfusion is intraoperatively assessed by ICG angiography and level of resection is selected based on the fluorescence) and a Control Group (i.e. resection is performed based on subjective judgment).

Economic Evaluation of Stream™ Platform

This Economic Evaluation study is a multi-center, two-arm, non-randomized, interventional trial. The purpose of this study is to evaluate the economic and patient outcomes of using the Stream™ Platform for early detection of anastomotic leakage after gastrointestinal surgery. The trial will track patient outcomes and healthcare costs in two groups: the intervention group, where the Stream platform is deployed, and the control group, before the integration of the Stream™ Platform. The data collected from both groups will be compared to assess the impact of implementing the Stream™ Platform and early leak detection on overall patient outcomes and healthcare costs.This trial will include hepatobiliary, colorectal, and trauma/acute care patient populations.

Luso-Cor Stent Compared to Other Endoscopic Techniques for Management of Fistulas and Anastomotic Dehiscences(ES-LCCE-UDFM)

The global prevalence of obesity has prompted an increase in bariatric surgery, which is the only management strategy that provides long-term weight loss and improvement of obesity-related diseases. Bariatric surgeries include sleeve gastrectomy(SG), Roux-en-Y gastric bypass(RYGB),and laparoscopically adjustable gastric banding(LAGB). The incidence of adverse events depends on the type of bariatric surgery performed, with serious adverse events occurring in approximately 4% and mortality in 0.1% patients. The incidence of fistulas after SG varies between 0.2% to 2.5% and between 1% and 4.9% in patients who have undergone an RYGB. The incidence of strictures after SG is approximately 0.35%. Older, more obese, and male patients with multiple comorbidities related to obesity are at increased risk for the development of fistulas and mortality following bariatric surgery. Additionally, surgery after LAGB increases the risk of adverse events. This study will compare the efficacy and safety of the Luso-Cor esophageal stent versus conventional covered metallic stents versus endoscopic vacuum therapy in the management of fistulas and anastomotic dehiscences after oncologic or bariatric surgery on the stomach and esophagus.

Evaluating the Effective and Safe Use of Stream™ Platform

The study aims to demonstrate the potential for at-home monitoring using Stream™ Platform, through simulated-use testing. Lay users, defined as subjects or nonprofessional caregivers, will be asked to operate Stream™ Platform. Safety, efficacy, and usability data will be collected to ensure that users are able to comply with prescribed device use. Additionally, clinical testing will be conducted to identify correlations between measurements from Stream™ Platform and standard laboratory, radiological, and clinical assessments used for leak detection as part of the current standard of care (SOC) that may be skipped if the subject is discharged early.

Anastomotic Leakage in Right Colectomy

Data of patients undergoing elective right colectomy for benign and malignant disease using an open or laparoscopic approach are to be collected in seven colorectal units among Austria for the period between January 2010 and December 2019. Demographic, peri- and postoperative data of patients were analyzed retrospectively.

Endoscopic Vacuum Therapy for Transmural Defects in the Upper Gastrointestinal Tract

The goal of this observational study is to learn about the best indications and techniques regarding endoscopic vacuum therapy (EVT) in patients with a transmural defect in the upper gastrointestinal (GI) tract (e.g. anastomotic leakage, Boerhaave syndrome, iatrogenic perforation, other). The main questions it aims to answer are: * What is the success rate of EVT for transmural defects in the upper GI tract? * What are the best indications for EVT in the upper GI tract? (e.g. etiology, patient characteristics, defect characteristics) * What are the best techniques for EVT in the upper GI tract? (e.g. EsoSponge, VACStent, vacuum pressure, intraluminal/intracavitary) Participants will be asked for informed consent to retrospectively and prospectively collect data on EVT.

Quantification of Anastomostic Blood Flow With Fluorescence Imaging in Low Anterior Resection for Rectal Cancer

A serious and life-threatening complication to rectal surgery is anastomotic leakage, AL. In Denmark, approximately 800 patients every year, are operated for rectal cancer, 50% of these with resection and anastomosis. The registered leakage rate for rectal anastomosis is 10-15%. AL can be life threatening and has long-term adverse effects for the patients, with reduced quality of life, due to a poor functional result of the neo-rectum known as low anterior rectal syndrome (LARS). Fistulas to the vagina or urinary tract are other severe complications. Furthermore, AL is associated with an increased risk of reccurence1. Finally, the AL-associated morbidity is also a significant economic burden to the health care system due to prolonged hospital stay, medicine, and reoperations. During surgery it is important to ensure optimal healing conditions for the anastomosis. The blood flow is evaluated by colour and pulsation in the mesentery. Studies suggest that it might be easier to evaluate the perfusion using fluorescent dye. This evaluation is a subjective evaluation, based mostly on the surgeon's experience. Assessing fluorescence by computer-based software, qICG, has been developed. But cut-off values for sufficient blood flow to diminish the risk of leakage, has not yet been defined. Aim: Primary objective: To establish cut-off values of qICG, where blood flow assumes sufficient for healing, and thereby reduce the risk of leakage. Secondary objective: To identify which long-term complications grade A, B and C leakages entails on Quality of Life.