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Spots Global Cancer Trial Database for Post-operative Ileus and Gut Microbiota

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Trial Identification

Brief Title: Post-operative Ileus and Gut Microbiota

Official Title: Post-operative Ileus of Colorectal Cancer Patients Associated With Perioperative Gut Microbiota

Study ID: NCT04009954

Study Description

Brief Summary: Postoperative ileus (POI) is a common clinical condition after abdominal surgical procedure, leading to increased patient morbidity and prolonged hospitalisation.The mechanism of POI is not very clear until now. At the end of the 20th century, the inflammatory-mediated ileus hypothesis was introduced. But the initial trigger of the inflammatory cascade is unclear.Previous study demonstrate a clear association between colonic transit time, gut microbiota composition and urinary metabolic phenotype. Here the investigators suggest that the perioperative gut microbiota may contribute to POI.

Detailed Description: Postoperative ileus (POI) is a common clinical condition after abdominal surgical procedure, leading to increased patient morbidity and prolonged hospitalisation. The clinical manifestations include abdominal distension, nausea, vomiting and the inability to pass stools or tolerate a solid diet. In addition to the discomfort experienced by patients, postoperative ileus is also an important risk factor for complications such as wound dehiscence and pulmonary and thromboembolic complications. Ileus was found to be an important predictor of extended postoperative hospital stays and costs in patients undergoing colectomy. The mechanism of POI is not very clear until now. At the end of the 20th century, the inflammatory-mediated ileus hypothesis was introduced. But the initial trigger of the inflammatory cascade is unclear The innate immune system recognises two large classes of macromolecules: first, those related to pathogens or pathogen-associated molecular patterns (PAMPs), and secondly, molecules released in response to cell damage or damage-associated molecular patterns (DAMPs). The prototype of PAMPs is lipopolysaccharide (LPS), a constituent of the Gram-negative bacterial cell wall. Translocation of microbial products into the intestinal tissue is a well-documented feature in POI. Previous study demonstrate a clear association between colonic transit time, gut microbiota composition and urinary metabolic phenotype. Here the investigators suggest that the perioperative microbiome may contribute to POI. This study apply NGS(next generation sequencing) technique to analyse the composition of the perioperative gut microbiota of CRC(colorectal cancer) patients, then analysis the relationship between the dynamic variation of gut microbiota and POI.

Eligibility

Minimum Age: 35 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

First affiliated hospital of Harbin medical university, Harbin, Heilongjiang, China

Contact Details

Name: Yunwei Wei

Affiliation: First Affiliated Hospital of Harbin Medical University

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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