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Volvulus causes severe pain and progressive injury to the intestinal wall, with accumulation of gas and fluid in the portion of the bowel obstructed. [11] Ultimately, this can result in necrosis of the affected intestinal wall, acidosis, and death. This is known as a closed-loop obstruction because there exists an isolated ("closed") loop of bowel.
Depending on the level of obstruction, bowel obstruction can present with abdominal pain, abdominal distension, and constipation.Bowel obstruction may be complicated by dehydration and electrolyte abnormalities due to vomiting; respiratory compromise from pressure on the diaphragm by a distended abdomen, or aspiration of vomitus; bowel ischemia or perforation from prolonged distension or ...
Blind loop syndrome, also known as stagnant loop syndrome, [1] is a state that occurs when the normal bacterial flora of the small intestine proliferates to numbers that cause significant derangement to the normal physiological processes of digestion and absorption.
The stepladder sign is a radiological finding observed in the context of small bowel obstruction on abdominal X-rays or computed tomography scans. It refers to the appearance of multiple, dilated small bowel loops arranged in a step-like configuration, typically visible in upright or lateral decubitus imaging positions.
The small intestine forms loops (B2) and slides back into the abdomen (B3) during resolution of the hernia. Meanwhile, the cecum moves from the left to the right side, which represents the additional 180° counterclockwise rotation of the intestine (C, central view). [4] The exact cause of intestinal malrotation is unknown.
An enterocele is a protrusion of peritoneal folds between the rectum and the vagina containing a loop of the small intestine. [19] It is abnormal descent of the small bowel in a deep pouch of Douglas. [20] Enterocoele may develop because of weakening pelvic floor, multiple pregnancies, hysterectomy, and long term chronic straining.
The small bowel follow-through may be characterized by delayed transit, distension near small bowel adhesions, and a "cauliflower" appearance due to peritoneal sclerosis-encapsulated bowel loop compression. Dilated loops of bowel may appear encased in a dense fibrous membrane or matted together and tethered posteriorly on ultrasonography. [48]
However, intussusception can cause a loop of bowel to become necrotic, secondary to ischemia due to compression to arterial blood supply. This leads to perforation and sepsis, which causes fever. In rare cases, intussusception may be a complication of Henoch–Schönlein purpura, an immune-mediated vasculitis disease in children. Such patients ...