K55.03

Clinical Causes: Blockage of blood flow due to blood clots or emboli Atherosclerosis, leading to narrowing of blood vessels supplying the colon Low blood pressure or hypoperfusion, often due to shock or heart failure Vasculitis, inflammation of blood vessel walls Surgical procedures or trauma affecting abdominal blood flow Coronary artery disease impacting overall circulation

Key Symptoms: Sudden onset of abdominal pain, often crampy and located on the left side The presence of blood in the stool, which may be visible or detected microscopically Urgency to have a bowel movement or diarrhea Nausea or vomiting in some cases Fever and signs of infection in more severe instances Weakness or signs of dehydration, especially with ongoing diarrhea

Diagnosis Path: Diagnosing acute ischemic colitis involves a combination of clinical evaluation and diagnostic tests. Medical history and physical examination may reveal tenderness or signs of infection. Imaging techniques such as computed tomography (CT) scans can identify areas of reduced blood flow and tissue damage. Colonoscopy is often performed to visualize the mucosal lining directly and obtain tissue biopsies. Blood tests may show signs of anemia, infection, or inflammation. It's crucial to differentiate ischemic colitis from other causes of gastrointestinal bleeding or infection.

Treatment Protocols: Treatment strategies focus on restoring adequate blood flow, relieving symptoms, and preventing complications. Initial management typically involves supportive care, including intravenous fluids to treat dehydration and antibiotics to prevent or address infection. In some cases, medications that improve blood flow or reduce clot formation are prescribed. Severe cases may require surgical intervention to remove damaged sections of the colon, especially if tissue necrosis or perforation occurs. Long-term management involves addressing underlying conditions like atherosclerosis and maintaining cardiovascular health to prevent recurrences.