K55.05

Clinical Causes: Blocked blood vessels due to atherosclerosis, leading to reduced blood flow Embolism, where a blood clot or debris travels to block arteries supplying the intestines Low blood flow states caused by severe dehydration or heart failure Vasospasm, sudden constriction of blood vessels in the intestine Thrombosis or blood clot formation within intestinal arteries

Key Symptoms: Sudden and severe abdominal pain, often out of proportion to physical findings Nausea and vomiting Distension or bloating of the abdomen Blood in the stool, which may be visible or detected during testing Fever and signs of systemic infection in more advanced stages Rapid heartbeat (tachycardia) and dehydration signs

Diagnosis Path: Diagnosing acute intestinal ischemia involves a combination of clinical assessment and diagnostic tests. Initial evaluation includes analyzing symptoms and physical examination findings. Imaging studies such as computed tomography (CT) angiography are crucial for visualizing blood flow and identifying blockages or reduced perfusion. Additional diagnostic methods include blood tests to evaluate for infection or tissue damage and other imaging techniques like Doppler ultrasound or mesenteric angiography to assess blood vessels more precisely.

Treatment Protocols: Treatment approaches focus on restoring blood flow and preventing tissue death. Immediate management may include intravenous fluids to improve circulation, pain management, and broad-spectrum antibiotics if infection is suspected. Depending on the severity and cause, interventions may involve endovascular procedures like angioplasty or surgical options such as resection of necrotic bowel tissue. Treatment is often an emergency, aiming to minimize bowel damage and preserve as much function as possible.