View clinical trials related to Liver.
Filter by:This clinical registry study aims to evaluate the safety and effectiveness of the AE05ML device for ligating vessels and tissue structures during laparoscopic surgery using Hem-o-lok® Medium Large (ML) polymer clips. The primary objective is to assess the device's safety and performance, with secondary objectives focusing on device performance characteristics and operator feedback.
Hepatitis B virus (HBV) infection is a very difficult public health problem in the world. Patients often experience the trilogy of "hepatitis-cirrhosis-liver cancer". Patients with decompensated cirrhosis may develop a variety of complications, such as portal hypertension, hypersplenism, esophageal and gastric variceal bleeding, ascites, spontaneous peritonitis, hepatic encephalopathy, etc. Liver transplantation is the only way to cure hepatitis B cirrhosis. However, the shortage of liver donors still severely limits its development. In 2015, Line and others proposed a new surgical method, namely resection and partial liver segment 2-3 transplantation with delayed total hepatectomy (RAPID). This surgery innovatively combines auxiliary liver transplantation and ALLPS surgery, which can greatly alleviate the problem of liver donor shortage and improve the overall prognosis of the above-mentioned patients. Our center has designed the Sequential Adult Left Lateral Liver Transplantation (SALT) procedure based on the principles of RAPID surgery and the characteristics of patients with cirrhosis. Compared with RAPID surgery, SALT surgery can dynamically monitor and regulate the blood flow of the residual liver and transplanted liver, reducing the risk caused by portal hypertension. This study will evaluate the safety and effectiveness of SALT in the treatment of post-hepatitis B cirrhosis.
Procedure preparation and accurate knowledge of the specific anatomy is an integral part of performing minimally invasive procedures. Due to the complexity with high variability and the non-visibility of the vascular structures, the liver poses a particular challenge. Therefore medical students and experienced surgeons will receive standardized, structured training on liver anatomy, the use of laparoscopic ultrasound and the application and use of CT data sets and the virtual 3D liver model. This training will be evaluated by questionnaires. Both groups then carry out a series of localization exercises on an artificial liver phantom: tumor imitations, which are displayed in the image(3D virtaul mdoel or 2D-CT-Data-Set), have to be found in the liver phantom laparoscopically using ultrasound. In each round, different scenarios are worked on, once without and then with the support of the virtual 3D liver model. The virtual 3D model can be displayed directly on the laparoscopic monitor using a display software specially developed for the trial and can be manipulated by the subjects. The aim of the study is to provide evidence that the availability and use of a virtual 3D model (augmented reality) leads to a significantly improved spatial perception of the subjects during laparoscopy of the liver. In addition, the subjectively perceived cognitive load of the subjects during the test run with and without the support of the virtual 3D model is surveyed and the learning success is evaluated.