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Copyright ©The Author(s) 2023.
World J Gastrointest Surg. Apr 27, 2023; 15(4): 553-565
Published online Apr 27, 2023. doi: 10.4240/wjgs.v15.i4.553
Table 1 Underlying pathological conditions
Pathological conditions

Trauma[21,64-67]Blunt/penetrating abdominal trauma
Surgical anastomosis or bypass
Mechanical[68]Pyloric obstruction or stenosis
Duodenal obstruction or stenosis
Bowel obstruction (volvulus, carcinoma, malrotation, intussusception)
Autoimmune[69-71]Lupus enteritis
Celiac sprue
Polymyositis
Dermatomyositis
Polyarteritis nodosa
Mixed connective tissue diseases
Graft versus host disease
Primary immunodeficiency
Malignancies[15]Gastrointestinal cancer
Leukemia
Lymphoma
Other malignancies
Inflammation[14,72]Inflammatory bowel disease
Appendicitis
Diverticulitis
Cholelithiasis
Sarcoidosis
Vascular conditions[73]Ischemia or infarction
Diabetes
Pulmonary disease[74,75]Chronic obstructive pulmonary disease
Cystic fibrosis
Asthma
Drugs[13,19,76-79]Corticosteroids
Chemotherapy and immunotherapy
Immunosuppression
Lactulose
Trichloroethylene
Sorbitol
Alpha-glucosidase inhibitor
Practolol
Diagnostic/therapeutic procedures[80,81]Endoscopy
Enema/colon idrotherapy
Barium studies
Connective tissue disease/neurological[82,83]Scleroderma
Multiple sclerosis
Hirschsprung disease
Quadriplegia
Amyloidosis
Other conditions[17,84]Hemodialysis
Pseudo-obstruction
Whipple disease
Cytomegalovirus infection
COVID-19 infection