Definition: Angiostomy refers to an open wound or incision where a blood vessel has been removed to prevent infection. It's commonly performed as part of emergency surgery. Detailed definition: Angiostomy involves removing a blood vessel from either artery (in emergencies) or vein (for more serious conditions). This allows the patient to receive oxygen, nutrients and other treatments through tiny tubes placed in their body, rather than traditional methods like open heart surgeries. It's essential for treating patients who have undergone major surgery and are at risk of infection.