A post-op ileus usually resolves within a few days, with the small bowel recovering in hours, the stomach in 1-2 days, and the colon taking 3-5 days, but it can become prolonged if complications like infection or opioids interfere, sometimes lasting over a week, requiring further investigation for mechanical obstruction or other issues.
Prognosis is generally good as postoperative ileus typically resolves within one to three days after diagnosis with supportive care.
It may be more correct to call postoperative ileus a primary ileus in that it is most likely an inevitable response to surgical trauma. In postoperative ileus, inhibition of small-bowel motility is transient, and the stomach recovers within 24 to 48 hours, whereas colonic function takes 48 to 72 hours to return.
Once the diagnosis of postoperative ileus has been established, initial treatment includes maintaining an NPO diet, volume should be maintained with intravenous fluids, narcotic and constipating medication should be discontinued, and pro-motility agents administered.
If paralytic ileus doesn't improve on its own, your doctor may prescribe medication that causes muscle contractions, which can help move food and fluids through your intestines. If paralytic ileus is caused by an illness or medication, the doctor will treat the underlying illness or stop the medication.
Treatment of Ileus
Severe vomiting is rare, but if it occurs, the buildup of gas and liquid caused by ileus must be relieved. Usually, a tube is passed through the nose into the stomach or small intestine (nasogastric tube), and suction is applied to relieve pressure and expansion (distention).
The 3-6-9 rule is a guideline for interpreting abdominal X-rays to detect bowel obstruction, stating normal upper limits are 3 cm for the small bowel, 6 cm for the large bowel (colon), and 9 cm for the cecum; diameters exceeding these suggest dilation, a key sign of obstruction, with larger measurements increasing the risk of rupture (e.g., >6cm small bowel, >9cm cecum).
Patients who walked before surgery were less likely to have post-operative paralytic ileus (25.0% vs 60.7%; p=0.003). Walking before the operative period and laparoscopic surgery independently protected against the development of post-operative paralytic ileus.
Alvimopan and methylnaltrexone are peripherally acting μ-opioid receptor antagonists that have been studied in patients undergoing abdominal and pelvic surgery and have been shown in several studies to significantly accelerate gastrointestinal recovery.
It's possible. It depends on where the blockage is and how serious it is. For example, while pooping may be more difficult, you may still have stool with a partial bowel obstruction. Pooping and even passing gas will likely be impossible with a complete bowel obstruction.
Individuals with mild forms of ileus can be treated at home with bowel rest. However, if the individual presents with persistent abdominal pain, continuous dehydration, or new signs and symptoms of infection, such as fever, shortness of breath, and rapid heartbeat, hospital admission may be required.
Drink plenty of water and fruit juice without pulp. Eating yogurt will enhance the digestion of food. Eat small meals throughout the day, and avoid overeating. Eat plenty of vegetables that are beneficial for the intestines, such as sweet potato, winter melon, potato, carrot, radish, spinach, mushroom...
Depending on the type of bowel surgery you have had, it can take several weeks or months for your bowel function to settle. Some people find that their bowel function never returns to its previous pattern but that they develop a new pattern.
Red Flag: Severe Abdominal Pain
Severe abdominal pain after colon surgery is a big warning sign. It could mean a serious problem that needs quick help. This pain is a red flag that should not be ignored. It might mean you have an that needs immediate medical care.
It can happen for a few different reasons: the anesthesia used during the procedure, pain medications you're taking or how much and what you're eating and drinking. Opioid medications are often used to manage pain after surgery, but they commonly cause constipation.
Alvimopan was recently approved by the FDA for treatment of postoperative ileus, but the use of the drug is restricted to inpatients because it has been associated with an increased rate of myocardial infarction. Further research should assess the effectiveness and safety of these drugs in clinical practice.
We recommend lactulose as the first choice because it is less harsh on your gut, given you have had surgery, and does not require a lot of fluid to work. This can be obtained from a pharmacist or on prescription from your GP.
Ileus that persists for more than 3 days following surgery is termed postoperative adynamic ileus, paralytic ileus, or functional ileus. Frequently, ileus occurs after major abdominal operations, but it may also occur after retroperitoneal and extra-abdominal surgery, as well as general anesthesia alone.
Summary. Ileus is a slowing of gastrointestinal motility that is not associated with mechanical obstruction. Most commonly presents following surgery and usually lasts 2-4 days. Prolonged postoperative ileus contributes significantly to longer hospitalization and increased healthcare costs.
"In January, I underwent major abdominal surgery in London and at the time, it was thought that my condition was non-cancerous. The surgery was successful," Kate said. "However, tests after the operation found cancer had been present.
The risks of prolonged inactivity after surgery are numerous and can greatly impact your healing process. When you don't move, your muscles weaken. This weakening can result in stiffness, loss of strength, and a decreased range of motion, all of which can prolong your recovery.
Abdominal Pain and Cramping
Abdominal pain or cramping is a common symptom. The pain can be mild or very severe. It may stay the same or change. This pain happens because the bowel tries to move stuff past the blockage.
The obstruction can be partial or complete. Ileus is a failure of normal intestinal motility in the absence of mechanical obstruction. Toxic megacolon is a type of ileus that can occur in patients with ulcerative colitis and in which there is transmural inflammation and colonic dilatation.
Multidetector CT has a sensitivity and specificity of 95% for the diagnosis of high-grade SBO and is less accurate in partial obstruction (4,6–8). As with radiography, the hallmark is dilated (> 2.5 cm) proximal small bowel with decompressed distal small bowel and colon (Table 2, Fig 7) (15).
The intestines will often start working again in a few days. Signs of this include being able to pass gas or have a bowel movement. As your intestines start working, you will switch slowly from a liquid diet back to solid foods. Follow-up care is a key part of your treatment and safety.