K55.029

Clinical Causes: Blood clots blocking arteries supplying the small intestine Atherosclerosis narrowing the blood vessels Twisting of the intestine (volvulus) Inflammation of blood vessel walls (vasculitis) Low blood pressure leading to reduced blood flow (shock) Emboli traveling from other parts of the body Narrowed arteries due to plaque buildup Intestinal hernias trapping blood vessels

Key Symptoms: Sudden and severe abdominal pain, often out of proportion to physical findings Nausea and vomiting Swelling or tenderness in the abdomen Signs of shock such as rapid heartbeat, cold skin, or low blood pressure Blood in stool or digestive bleeding Fever in some cases Loss of appetite and general weakness Changes in bowel habits, including diarrhea or constipation

Diagnosis Path: Diagnosing an acute small intestine infarction involves a combination of medical history, physical examination, and diagnostic tests. These may include blood tests to check for infection or organ dysfunction, imaging studies like abdominal ultrasound, CT scans, or angiography to visualize blood flow and identify blockages. Sometimes, a contrast-enhanced MRI might be used to assess the extent of damage. Early diagnosis is crucial to prevent severe complications like tissue death or perforation.

Treatment Protocols: The primary treatment for an acute infarction of the small intestine usually involves emergency surgical intervention to remove the dead tissue and restore blood flow. Medical management may include intravenous fluids to maintain blood pressure, antibiotics to prevent infection, and medications to improve blood flow. In some cases, minimally invasive procedures like endovascular therapy can be performed to unblock arteries. Long-term management focuses on addressing underlying causes, such as managing atherosclerosis or blood clotting disorders, to prevent recurrence.