An obstruction could stem from within the cecum, colon, either the ascending, transverse, descending, sigmoid part of the colon, or rectum within the large intestine. Like a small intestinal obstruction, the blockage may be partial or complete and should be treated as a medical emergency. Obstruction of the mechanical nature, are the most common causes in the large intestine. PATHOPHYSIOLOGY — Interruption of a normal flow of intraluminal contents occurs a bowel obstruction ensues. The prevention of the passage of the gastrointestinal contents, due to a luminal defect which causes the obstruction which may be within the wall of the bowel (intrinsic) or external to the bowel (extrinsic). The small intestine can have a partial or complete obstruction. …show more content…
Bowel distention can be caused from air and gas being swallowed from bacterial fermentation. The bowel wall becomes edematous, the normal function absorptive is lost, and fluid is sequestered into the bowel lumen as the process continues. A loss of transudative fluid into the peritoneal cavity from the intestinal lumen can occur. Additional ongoing emesis leads to extra loss of Na, K, H, and Cl, and metabolic alkalosis in the fluid when there is a proximal bowl obstruction. Hypovolemia can be a result of the lost of these fluids. Emesis, can become feculent, which is normally nearly sterile, can have an overgrowth of bacteria which occurs in the proximal bowl. Perfusion to the wall of the intestine is reduced when intramural vessels of the small intestine become compromised and if the bowl dilation is excessive. If the metabolic needs of the tissue are insufficiently met due to a possible perfusion to a segment of intestine and unless the process is interrupted, occurrence of ischemia will appear, which will in the end, lead to necrosis and
Since you have been diagnosed with a bowel obstruction the doctor wants you not eat or drink anything. The reason why the doctor would like you to refrain from having anything to eat and drink is to give your intestines time to rest and if you are not intaking anything your bowels do not have to help digest anything and are able to relax. Having you not eat or drink anything will hopefully help with the blockage since the intestines are allowed to relax.
Please review the information available in DocuCare patient chart, including demographics, notes, diagnostics, assessments and flow sheet. Included in the "notes" section is a history and physical (H & P) which includes a review of systems (ROS), past history and family history as well as the physical exam (PE).
Fig (32): Flash artifact (arrow) visualized due to motion of bowel gas anterior to IVC (inferior vena Cava) (Robbin ML. et al., 2009).
Diarrhea being expelled from the body is not normal. This indicates that there is an issue within the gastrointestinal tract. Normally the small intestine absorbs most of the water in chyme. Approximately 95% of water is absorbed in the small intestine by osmosis (Marieb, 2014). The remaining water is usually absorbed in the large intestine, and some is even used to help soften the stool that is supposed to be pushed out. Peristalsis and segmentation in the small intestine helps mucosal cells absorb the water within the chyme. According to Marieb (2014), water moves freely in both directions of the intestinal mucosa, and active transport of solutes into the mucosal cells creates net osmosis because of the concentration gradient established. Therefore, water uptake is paired to solute uptake, and then affects the absorption of substances that
Pathophysiology: Diverticulitis, is characterized by inflamed diverticuli and increased luminal pressures that cause erosion of the bowel wall and thus microscopic or macroscopic perforation into the peritoneum. A localized abscess develops when the
Eventually, bowel obstruction can be the result from chronic narrowing and strictures of the lumen (Chang & Johnson, 2014, p.
The direct cause of this disease is unknown although several theories do exist; immune system problems, genetics or environmental factors. Most experts believe that genetics and intestinal bacteria are the developing factors of the disease. Theoretically, the adaptive immune system of an otherwise healthy individual will try to compensate for a deficient innate immune system creating white blood cells to destroy helpful microbes which inadvertently tear down the lining of the intestines causing ulcers, scar tissue and narrowing of the lumen within the intestine causing blockage. ( meded, 2010) Genetically, research has found a gene, NOD2, which produces a mutation and is linked to autoimmune diseases like Crohn’s.
Crohn’s disease tends to cause blockages in the intestine, because thickening of the intestinal wall causes acute inflammation, which narrows the lumen of the small intestine.
Exomphalos can be linked to genetic abnormalities and it may occur with any age of the mother (“Contact a Family,” 2012). Gastroschisis is characterised by a defect in the abdominal wall and it is positioned to one side of the umbilical cord, typically the right side. In most cases the bowel will develop out of the abdomen. The bowel will remain out of the abdomen for the remaining time of the pregnancy. In some cases, the amniotic “ fluid irritates the bowel and makes it inflamed and thick, so that it does not work properly. Sometimes the bowel becomes twisted as it floats in the fluid and the blood supply is restricted.” (“Contact a Family,” 2012). At birth, the bowel can become further irritated when it is exposed to the air. Gastroschisis is associated with younger mothers; if the mother is under 20 years old, the risk of her child having gastroschisis is twelve times more likely (“Contact a Family,” 2012). Gastroschisis is typically not linked with any other abnormality, which means that is almost always an isolated abnormality (“Contact a Family,” 2012).
Intestinal obstruction secondary to active inflammation is the most common complication. Patients with colonic involvement are at risk for developing colon cancer. Subsets of patients develop fistulas that are usually managed by medication or parental nutrition, but may require surgery. Nutritional and vitamin deficiencies are common, resulting from inadequate diet, intestinal loss of protein, or malabsorption. Systemic complications may include arthritis, skin lesions, anemia, liver and biliary disease, inflammation of the eyes or mouth, and bleeding disorders. Some of these problems resolve during treatment of the disease, but some may be treated separately. Consultations with dietitians, wound care specialists, or pain management clinicians and physiological support clinicians are not uncommon.
First of all, Crohn’s disease usually involves the small intestine and it may lead to nutrient malabsorption. One thing that has been figured out by researchers is, genetic and environmental factors definitely contribute to the development of Crohn’s disease. This disease can really occur in any region of the Gastrointestinal Tract (GI Tract) but, for most cases it will affect the ileum, and the large intestine. Patients who suffer from Crohn’s disease will likely develop Lesions in different areas in the intestine, and eventually normal tissue separating the affected areas. Inflammation of the intestine can extend deeply into intestinal tissue and this usually is caused by ulcerations, fistulas, or fissures. Fistulas are normally the main cause out of those three, this is where abnormal passages between the organs or tissues allow the passage of fluids or secretions. With scar tissue resulting from Fistulas, the tissue eventually thickens, and this narrows the lumen and it sometimes causes strictures and/or obstructions. We know that having Crohn’s disease
There are many diseases and illnesses in this day and age that can cause harm. One of these illnesses is intussusception. This particular illness is found in children and can be life-threatening if it isn't found in the early stages. Intussusception occurs when a segment of bowel is pulled into itself by the means of peristalsis. This can cause a blockage in the intestinal tract, and cause severe pain to the child. An easy way to find this illness is by diagnostic tools. To understand how intussusception takes hold over the body, you have to start with the cause of the illness. (Weerakkody & Amini, 2015).
small intestines. In this case, fortunately the patient was spared with a mild case and
This essay will focus on Crohn’s disease and pathological changes that may occur in the small intestine as a result of the inflammatory process and discuss the scientific reasons for the possible treatments relating these to pathological processes.
Your rectum is the lower portion of your colon, where stool forms. If the rectum dribs out of its normal place within the body and shoves out of the anal opening, the disorder is called rectal prolapse. In the primary stages, a prolapse might happen only after a bowel movement. The protuberant rectum might then slide back through the anal canal on its own. Over time, however, the prolapse might become more severe and could necessitate surgery. Rectal prolapse is thought to be instigated by circumferential intussusception of the upper rectum and rectosigmoid colon.