sigmoid volvulus

sig·moid vol·vu·lus

relatively common location of volvulus, with obstruction either proximal or distal to the sigmoid segment.
Farlex Partner Medical Dictionary © Farlex 2012
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* The frequency of sigmoid volvulus is more in adult males when compared to adult females.
Sigmoid gangrene is seen in 6.1-93.4% of cases with sigmoid volvulus (SV).1,2 Although some clinical and laboratory findings such as melanotic stool, fever, leucocytosis, abdominal guarding/rebound tenderness, hypotension/shock, somnolence and metabolic acidosis suggest the sigmoid gangrene, most of them generally fail in accurate diagnosis.3,4 Similarly, although some radiological studies including Doppler ultrasonography, angiography or scintigraphy demonstrate the vascular occlusion, they are generally inadequate in determining sigmoid gangrene.5 When considerations are suitable, endoscopy identifies mucosal viability.
Sigmoid volvulus can often be differentiated from transverse colon or cecal volvulus by means of performing abdominal X-ray imaging.
Sigmoid volvulus is an obstructive bowel disease caused by abnormal twisting of the sigmoid colon and mesentery.
In this report, we present a case with recurrent sigmoid volvulus (SV) in two successive pregnancies treated with temporizing endoscopic decompression and elective postpartum sigmoid resection.
These secondary pathologies are pyloric stenosis, peptic ulcer, appendicitis, ischemic and inflammatory intestinal diseases, diverticular disease, sigmoid volvulus, obstructive pulmonary disease, connective tissue diseases, various parasitic diseases of the intestine, and surgical or endoscopic trauma (2).
Sigmoid volvulus (SV) may cause ischemia, perforation, sepsis, and finally mortality (1).
Colonic ischemia may result from high-grade obstruction produced by distal neoplasms and sigmoid volvulus [9].
Plain films as well as a CT scan from the outside hospital were consistent with a sigmoid volvulus.
Sigmoid volvulus, defined as an abnormal twisting of the sigmoid colon around its mesentery, is an age old disease condition.
* Complications from fecal impaction include bowel obstruction, sigmoid volvulus, and rectal prolapse.
The "coffee bean" sign is seen on supine plain films of the abdomen in approximately 80% of cases of sigmoid volvulus.77 The appearance of the coffee bean is created by the dilated lateral walls of the sigmoid colon forming the outer walls of the coffee bean and the closely apposed medial walls forming the cleft of the coffee bean (Figure 27).78 This gas-filled segment of bowel arises from the pelvis and may fill the entire abdomen.