What causes an overloaded sigmoid colonic loop in sigmoid and cecal volvulus?

Updated: Nov 28, 2018
  • Author: Scott C Thornton, MD; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

Chronic constipation in Western society and a high-fiber diet in developing nations lead to an overloaded sigmoid colonic loop. The weight of this loaded sigmoid colon makes it susceptible to torsion along the axis of the elongated mesentery. The presence of a gravid uterus or a large pelvic mass alters the relative positions of the intra-abdominal organs, also predisposing to formation of volvulus.


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