Paralytic ileus

This study tests whether patients can safely perform a daily bowel stimulation at home for three weeks before ileostomy closure surgery. The goal is to see if this simple routine can prevent postoperative ileus (a temporary bowel paralysis) and shorten hospital stays. Thirty-four…

This study tests whether drinking beetroot juice for a week before colorectal surgery can help the gut start working again sooner. About 170 adults will be randomly assigned to drink either real beetroot juice or a placebo. Researchers will track when patients can eat solid food …

This study tests whether transcutaneous electrical acupoint stimulation (TEAS) can reduce gastrointestinal dysfunction after urological laparoscopic surgery. 112 adults undergoing procedures like laparoscopic nephrectomy will receive either real or sham TEAS before and after surg…

This study tests whether giving lactulose, a mild laxative, after complex appendix surgery helps the bowels start working again sooner. 150 adults will receive either lactulose or a placebo for a few days after their operation. The main goal is to see how quickly they can pass st…

This study tests whether a combination of a long-lasting numbing drug (liposomal bupivacaine) injected into the belly wall plus a special painkiller (oxycodone) given through an IV can help the gut recover faster after major abdominal surgery. 132 adults having small bowel or col…

This study tests whether giving less or more IV fluids during a planned C-section helps reduce nausea and vomiting after surgery and helps the bowels recover faster. About 160 women having planned C-sections under spinal anesthesia will take part. The goal is to find the best flu…

This study looks at whether chewing gum after gastrointestinal surgery can help the bowels start working again sooner. About 96 adults having open abdominal surgery will either chew gum or not, and researchers will measure how quickly they pass gas and have their first bowel move…

This study tests whether pyridostigmine, a drug that stimulates bowel activity, can safely and effectively treat postoperative ileus—a common condition where the bowels stop working after colorectal surgery. About 50 adults who develop ileus after elective colorectal surgery will…

This study tests a vagal nerve stimulator device to see if it can reduce how long patients need a nasogastric (NG) tube after abdominal surgery. The NG tube is used to relieve pressure from a common complication called postoperative ileus, but it can cause pain and discomfort. Si…

This study looks at whether using lower pressure gas during laparoscopic large bowel surgery can protect the gut and help patients recover faster. About 125 adults having certain types of colon surgery will be randomly assigned to different pressure levels. The goal is to see if …

This study aims to collect medical data and biological samples (blood, urine, stool, and tissue) from up to 4,000 adults with known or suspected gastrointestinal diseases. Participants receive standard medical care at the NIH, and any extra samples or leftover tissue from procedu…