Bowel obstruction surgery: Difference between revisions

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{{Bowel obstruction}}
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==Overview==
==Overview==
The mainstay of treatment for bowel obstruction is surgical. Surgery is specifically indicated for complicated bowel obstruction. Complications include: complete obstruction, closed-loop obstruction, bowel ischemia, necrosis, and perforation.
==Indications==
===Indications based upon complicated clinical presentation===
*Fever
*Leukocytosis
*Tachycardia
*Continuous or worsening abdominal pain
*Metabolic acidosis
*Peritonitis
*Systemic inflammatory response syndrome (SIRS)
===Indications based upon image findings===
*Free air on  x-ray or CT
**Indicates a perforation
*Signs of ischemia.
**Such as pneumatosis intestinalis and portal venous gas
*Complete or closed loop obstruction
**Such as U-shaped or triangular loop, distended and fluid-filled loops, and a pair of collapsed loops near the obstruction site.
*Abnormal route of a mesenteric vessel
*Fluid in the peritoneum
*Presence of a transition point
===Indications based on a point system===
*A score of more than or equal to 3 indicates surgery, each criterion is allotted one point:
**History of pain lasting > 4 days
**Guarding on physical examination
**Elevated CRP above 75 mg/L
**Elevated WBC
**Presence of free intraabdominal fluid on CT > 500 ml of
**Reduced bowel wall contrast enhancement on CT 


==Surgery==
==Surgery==
===In Adults===
In adults, frequently the surgical intervention and the treatment of the causative lesion are required.  In malignant large bowel obstruction, endoscopically placed self-expanding metal [[stents]] may be used to temporarily relieve the obstruction as a bridge to surgery, or as palliation.


====Small Bowel obstruction====
*The feasibility of surgery depends on the stage of [malignancy] at diagnosis.
In the management of small bowel obstructions it is often said that "[n]ever let the sun rise or set on small-bowel obstruction"<ref>{{cite journal |author=Maglinte DD, Kelvin FM, Rowe MG, Bender GN, Rouch DM |title=Small-bowel obstruction: optimizing radiologic investigation and nonsurgical management |journal=Radiology |volume=218 |issue=1 |pages=39-46 |year=2001 |pmid=11152777 |doi=}}[radiology.rsnajnls.org/cgi/reprint/218/1/39.pdf Free Full Text]. Accessed on: July 19, 2007.</ref> because they are sometimes fatal if treatment is delayed.
OR
*Surgery is the mainstay of treatment for [disease or malignancy].
 
==Contraindications==
 


Treatment for a small bowel obstruction is both non-surgical (conservative) and surgical.


Conservative treatment involves insertion of a [[Nasogastric intubation|nasogastric tube]], correction of dehydration and [[electrolyte]] abnormalities. [[Opioid]] pain relievers may be used for patients with severe pain. [[Antiemetic]]s may be administered if the patient is vomiting. Adhesive obstructions often settle without surgery.  If obstruction is complete a surgery is required.


Small bowel obstruction caused by [[Crohn's disease]], peritoneal [[carcinomatosis]], sclerosing [[peritonitis]], [[Radiation enteropathy|radiation enteritis]] and postpartum bowel obstruction are typically treated conservatively, i.e. without surgery.  Conversely, a small bowel obstruction in a "virgin abdomen" (an abdomen that has not seen an operation) is almost never treated conservatively.


===Bowel obstruction in Children===
===Bowel obstruction in Children===

Revision as of 21:29, 7 February 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]

Overview

The mainstay of treatment for bowel obstruction is surgical. Surgery is specifically indicated for complicated bowel obstruction. Complications include: complete obstruction, closed-loop obstruction, bowel ischemia, necrosis, and perforation.

Indications

Indications based upon complicated clinical presentation

  • Fever
  • Leukocytosis
  • Tachycardia
  • Continuous or worsening abdominal pain
  • Metabolic acidosis
  • Peritonitis
  • Systemic inflammatory response syndrome (SIRS)

Indications based upon image findings

  • Free air on x-ray or CT
    • Indicates a perforation
  • Signs of ischemia.
    • Such as pneumatosis intestinalis and portal venous gas
  • Complete or closed loop obstruction
    • Such as U-shaped or triangular loop, distended and fluid-filled loops, and a pair of collapsed loops near the obstruction site.
  • Abnormal route of a mesenteric vessel
  • Fluid in the peritoneum
  • Presence of a transition point

Indications based on a point system

  • A score of more than or equal to 3 indicates surgery, each criterion is allotted one point:
    • History of pain lasting > 4 days
    • Guarding on physical examination
    • Elevated CRP above 75 mg/L
    • Elevated WBC
    • Presence of free intraabdominal fluid on CT > 500 ml of
    • Reduced bowel wall contrast enhancement on CT


Surgery

  • The feasibility of surgery depends on the stage of [malignancy] at diagnosis.

OR

  • Surgery is the mainstay of treatment for [disease or malignancy].

Contraindications

Bowel obstruction in Children

Fetal and neonatal bowel obstructions are often caused by an intestinal atresia where there is a narrowing or absence of a part of the intestine. These atresias are often discovered before birth via a sonogram and treated with using laparotomy after birth. If the area affected is small then the surgeon may be able to remove the damaged portion and join the intestine back together. In instantances where the narrowing is longer, or the area is damaged and cannot be used for a period of time, a temporary stoma may be placed.

References


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