title: Factors affecting bowel gangrene development in patients with sigmoid volvulus.
abstract: OBJECTIVE
  Sigmoid gangrene develops in 6.1% to 93.4% of sigmoid volvulus (SV) cases, and increases the mortality rate from 0% to 40% without bowel gangrene to 3.7% to 80%. This study aimed to investigate factors that induce bowel gangrene development in SV patients.
  
  
  METHODS
  Retrospective study from a single center.
  
  
  METHODS
  We determined whether there was any correlation between sigmoid gangrene and the following factors: age, gender, a previous history of a volvulus, previous history of abdominal surgery, pregnancy, major comorbidities, shock, duration of symptoms, direction and degree of rotation of volvulus, and ileosigmoid knotting.
  
  
  RESULTS
  Of 442 patients, 271 (61.3%) had sigmoid gangrene. The presence of pregnancy was negatively cor.related with sigmoid gangrene development (P < .05), while comorbid diseases (P < .01), associated shock (P < .01), prolonged symptom duration (P < .05), overrotation (P < .05), and associated ileosigmoid knotting (P < .01) were positively correlated with bowel gangrene. However, no correlation was observed between sigmoid gangrene and the other studied factors.
  
  
  CONCLUSIONS
  An inverse correlation between pregnancy and sigmoid gangrene was observed. On the other hand, a positive correlation was noted between bowel gangrene and comorbid diseases, shock, prolonged duration of symptoms, overrotation, and associated ileosigmoid knotting.
authors.affiliation: Faculty of Medicine, Department of General Surgery, Ataturk University, Erzurum 25070, Turkey. ssa@atauni.edu.tr
authors.forename: Sabri Selcuk
authors.initials: SS
authors.lastname: Atamanalp
authors.forename: Abdullah
authors.initials: A
authors.lastname: Kisaoglu
authors.forename: Bunyami
authors.initials: B
authors.lastname: Ozogul
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D012809:Colon, Sigmoid / Q000473:pathology*; D005260:Female; D005734:Gangrene / Q000209:etiology; D006801:Humans; D045822:Intestinal Volvulus / Q000150:complications* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology / Q000473:pathology; D012189:Retrospective Studies; D012307:Risk Factors; D012810:Sigmoid Diseases / Q000209:etiology* / Q000473:pathology
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