Active clinical trials for "Rectal Neoplasms"

The clinical study of making the evidence with application of Da vinci-Robot assisted low anterior resection in rectal cancer

The purpose of this study is to investigate if operation and permanent stoma can be omitted in patients with cancer in the lower part of the rectum.

Total mesorectal excision (TME) is a rather new operation technique in the treatment of rectal cancer. It is known to reduce the rate of local recurrences. However, the influence on long-term survival is unclear.

This study aims to compare the safty and technical accessibility of linear stapler and curved cutter stapler during mid to low rectal cancer surgery.

Anastomotic leakage is a serious complication after LAR with high morbidity and mortality rates. Early diagnosis and treatment is mandatory. The primary aim of the present study is to investigate the clinical use of peritoneal microdialysis and whether is able to detect anastomotic leakage prior to clinical symptoms develops.

Introduction: In locally advanced rectal cancers (LARC), TNM staging is far from optimal. We aimed to investigate the value of previously described circulating biomarkers as predictors of prognosis. Methods: Retrospective analysis of 245 LARC patients diagnosed between January 2010 and December 2022, who underwent neoadjuvant chemoradiotherapy and surgery at two centers. A Cox regression and Kaplan-Meier analysis were performed.

Anterior resection with total mesorectal excision (TME) is the standard procedure for mid and low rectal cancers . A colo-rectal anastomosis under peritoneal reflection is, most of the time, protected by a temporary loop stoma to decrease the risk and severity of anastomotic morbidity. This stoma, which is intended to be temporary, appears to be permanent in 6 to 32% of cases in the literature. The main risk factor being anastomotic leakage. Two major risk factors for anastomotic leakage after colorectal surgery are " male sex " and " Body mass index ", which are responsible of a higher anatomical difficulty (Narrow pelvis and bulky mesorectal fat) Therefore, the objective of this study is to look for a statistical link between permanent stoma and intraoperative difficulty represented by pelvic anatomical constraints.

The use of the novel recently introduced PET/MR scanner is believed to be promising in RC management, providing great anatomical details and detailed metabolic characterization. Preliminary data indicate it may become a strong imaging modality for staging of RC and has the potential to be used as a predictive tool guiding individualized therapy in patients receiving nT, but confirmation on prospective studies is mandatory. The use of radiomics as analysis approach may assist in achieving a better understanding of the obtained image data, and thus a more accurate disease assessment. Objectives To preliminary assess the potential diagnostic value of single PET/MR scan in RC staging and compare it to that of MRI alone, PET/CT alone, and combined MRI and PET/CT. To preliminary assess the potential value of PET/MR in predicting pMR to nT. To use radiomics analysis of PET/MR data to develop a quantification clinical tools that allow a more accurate and comprehensive assessment of RC patients.

Neoadjuvant treatments (nCRT) are becoming the standard treatment for patients with stage II or stage III mid-low rectal cancer. In fact, with the introduction of total mesorectal excision, the local recurrence has been reduced significantly. Recently few studies have shown that surgery alone is enough for patients with T3 rectal cancer. These issues raised the question of whether nCRT is needed for all T3 rectal cancer patients. Therefore, this study was designed to compare the long-term oncological outcomes between surgery and surgery following nCRT among patients with MRI-defined T3, clear MRF mid-low rectal cancer.

A multi-institutional registry of collected data on patients with rectal cancer who underwent surgical resection between January 2009 and December 2018 at the departments of colorectal surgery of five medical institutions in China