Causes of ischemic colitis

What are the causes of ischemic colitis

Causes of Ischemic Colitis

Arterial Occlusive Disease

• 1. Thromboembolism
  • i. Atrial fibrillation
  • ii. Endocarditis
  • iii. Other
• 2. Arterial stenosis
  • i. Atherosclerosis
  • ii. Vasculitis
  • iii. Fibromuscular dysplasia
  • iv. Other
• 3. Hypercoagulable states
  • i. Antiphospholipid antibody syndrome
  • ii. Protein C deficiency
  • iii. Protein S deficiency
• 4. Invasive malignancy

Venous Occlusive Disease

• 1. Hypercoagulable states
• 2. Invasive malignancy
• 3. Extrinsic venous compression
  • i. Bowel obstruction
  • ii. Invasive malignancy

Hypoperfusion

• 1. Heart failure
• 2. Hemorrhagic or septic shock
• 3. Medications affecting blood pressure

Sources

(Adapted from Zafar HM, Miller Jr. WT. Imaging of the bowel. In: Diagnostic abdominal imaging . New York: McGraw Hill; 2013:15-160.)