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What is mechanical intestinal obstruction?

What is mechanical intestinal obstruction?

Mechanical obstructions are when something physically blocks the small intestine. This can be due to: adhesions: fibrous tissue that develops after abdominal surgery. volvulus: twisting of the intestines. intussusception: “telescoping,” or pushing of one segment of intestine into the next section.

What is the difference between mechanical and non mechanical intestinal obstruction?

A small bowel obstruction commonly occurs where loops of intestine can easily get blocked or twisted. A blockage can be partial or total, mechanical (caused by an object) or non-mechanical (caused by paralysis of movement to the bowel).

How can you distinguish between mechanical and functional obstruction?

There are two types of small bowel obstruction: functional — there is no physical blockage, however, the bowels are not moving food through the digestive tract. mechanical — there is a blockage preventing the movement of food.

What are the mechanical causes of intestinal obstruction?

Mechanical causes of intestinal obstruction may include:

  • Adhesions or scar tissue that forms after surgery.
  • Foreign bodies (objects that are swallowed and block the intestines)
  • Gallstones (rare)
  • Hernias.
  • Impacted stool.
  • Intussusception (telescoping of one segment of bowel into another)
  • Tumors blocking the intestines.

Which is a characteristic of mechanical obstruction?

The cardinal signs of mechanical bowel obstruction are abdominal pain, vomiting, constipation, abdominal distention, and decreased bowel sounds, regardless of the underlying etiology. The severity and progression of clinical features differ according to the site and severity of the obstruction.

How is mechanical intestinal obstruction treated?

Possible treatments include: Nasogastric tube—a tube is passed through your nose and down into the stomach. Fluids that have become trapped can be removed through this tube. Removal of fecal impaction—Feces trapped in the rectum can be manually loosened and removed.

Which of the following is considered a mechanical obstruction?

Definition. A mechanical bowel obstruction is a partial or complete blockage in the intestine. It can happen at any point along the intestine tract but it is more common in the small bowel. The small bowel is the upper part of the intestines and the large bowel is the lower part.

What are the key differences between a functional vs mechanical ileus?

Unlike mechanical ileus, functional ileus is not due to a process obstructing the lumen of the bowel and impeding the passage of its contents, but rather to reduced contraction of the smooth muscle of the bowel wall.

What are the classification of intestinal obstruction?

Overview. Bowel obstruction may be classified by 5 different classification methods including: Open and closed, incomplete and complete, extrinsic, intrinsic and intraluminal, true and pseudo-obstruction, and finally, small bowel and large bowel.

How can you tell the difference between intestinal obstruction and paralytic ileus?

Diagnosis Nausea, abdominal pain, bloating with vomiting, abdominal distention and obstipation being accompanying symptoms. Classically paralytic ileus is suggested by hypoactive bowel sounds whereas small bowel obstruction is described with rushes and bowel sounds consistent with peristalsis against the obstruction.

What is the difference between ileus and bowel obstruction?

Ileus and intestinal obstruction have similarities. However, ileus results from muscle or nerve problems that stop peristalsis, while an obstruction is a physical blockage in the digestive tract. However, a type of ileus known as paralytic ileus can cause a physical block due to a food buildup in the intestines.

What are the 2 classification of obstruction?

Open type of bowel obstruction refers to an obstruction at a single location where the rest of the bowel is patent. A closed bowel obstruction refers to an obstruction occurring at two locations, so that there is no proximal or distal outlet.

What is extrinsic mechanical obstruction?

Background: Intestinal obstruction occurs when the normal flow of intestinal contents is interrupted. The most frequent causes of intestinal obstruction are postoperative adhesions and hernias, which cause extrinsic compression of the intestine.

What is the most common cause of intestinal obstruction?

The most common causes of intestinal obstruction in adults are: Intestinal adhesions — bands of fibrous tissue in the abdominal cavity that can form after abdominal or pelvic surgery. Hernias — portions of intestine that protrude into another part of your body. Colon cancer.

What are two types of ileus?


  • Ileus is a partial or complete non-mechanical blockage of the small and/or large intestine.
  • There are two types of intestinal obstructions, mechanical and non-mechanical.
  • Ileus sometimes occurs as a complication of surgery on other parts of the body, including joint replacement or chest surgery.

What is the difference between an ileus and a bowel obstruction?