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Peritoneal Inflammation clinical trials

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NCT ID: NCT02975947 Completed - Clinical trials for Peritoneal Inflammation

Effect of Warmed Humidified CO2 on Peritoneum During Laparotomy

Start date: August 2013
Phase: N/A
Study type: Interventional

The operating theatre is deliberately made to be cold and dry to prevent bacteria from growing. The problem with this is that during open abdominal surgery, the intestine and the overlying peritoneum is exposed to cold dry air. Surgeons try to stop the bowel/peritoneum from drying by applying warmed saline packs periodically to the bowel. However, this is not always possible. Sometimes, the surgeon has to perform an important component of the procedure (attach bowel/blood vessels together etc) and the bowel/peritoneum visibly dries. When bowel/peritoneum dries damage occurs, inducing inflammation. Inflamed bowel/peritoneum causes the bowel to stick together and form adhesions. Bowel adhesions can cause bowel obstruction. This vicious cycle is repeated when the patient undergoes repetitive open abdominal operations. This study aimed to be the first human study to: 1. Demonstrate that peritoneal inflammation occurs during open abdominal surgery and also to demonstrate that pro-inflammatory cells (polymorphs, macrophages) are activated during the progress of the operation. This study aims to show that mRNA(using Q-PCR) is increased for pro-inflammatory cytokines. This study also aim to show that proinflammatory cytokines (Interleukin(IL)-1,2,6,9,10, and TNF by ELISA/confirmed using Western Blotting) are elevated during the course of the operation. 2. Demonstrate that the mechanism of bowel/peritoneal inflammation is causally related to the bowel/peritoneum drying (dessication). This study will attempt to prove this by using humidified, warmed carbon dioxide gas which will warm and moisten the peritoneum/bowel. It is proposed that this will arrest the peritoneal injury and the inflammation. The investigators will attain peritoneal samples during open colorectal operations. The investigators will obtain samples at the beginning and end of the operation. This study design is a randomized controlled trial, where half the patients will receive humidified, warmed carbon dioxide gas during surgery, and the other half will get standard open surgery without carbon dioxide. 40 patients will be recruited in this study. Half (20) will get CO2, and other half (20) will get standard open surgery.

NCT ID: NCT00642005 Completed - Clinical trials for Peritoneal Inflammation

Humidification in Laparoscopic Colonic Surgery

Start date: April 2008
Phase: N/A
Study type: Interventional

Laparoscopic surgery allows surgeons to remove bowel via small incisions. To allow insertion of a camera and instruments, cold and dry gas is blown into the abdominal cavity. This project investigates the use of warmed, humidified gas in laparoscopic surgery. The hypothesis is that this will result in less damage to internal surfaces, and shorten recovery time. Previous studies have demonstrated positive outcomes in laparoscopic gallbladder operations. The investigators plan to study patients undergoing laparoscopic colon operations, as these operations are longer and the effect of humidification will be magnified. The investigators will enroll 74 patients: 37 will have the operation with cold dry gas, and 37 will have warm, humidified gas. The investigators will measure intraoperative heat loss, postoperative pain, fatigue, nausea and vomiting, and time to return of bowel function.