S45.10

Clinical Causes: Trauma from falls or accidents involving the arm Penetrating injuries such as stab wounds or gunshot wounds Sports injuries causing direct impact to the upper arm Surgical procedures near the brachial artery that may accidentally damage it Compression injuries from fractures or dislocation in the upper limb

Key Symptoms: Sudden or increasing pain in the upper arm Swelling or hematoma (localized collection of blood) Paleness or coolness of the affected limb Weak or absent pulse in the arm or wrist Numbness or tingling sensation in the hand and fingers Decreased motor function or paralysis of the limb in severe cases

Diagnosis Path: Diagnosis typically involves a physical examination combined with imaging techniques such as Doppler ultrasound, angiography, or MRI to assess blood flow and identify the extent of arterial injury. A healthcare provider may also check for pulses, skin color, temperature, and sensation to evaluate the vascular status of the limb. Prompt diagnosis is essential to prevent complications like tissue ischemia or limb loss.

Treatment Protocols: Treatment options vary based on the severity of the injury and may include: - **Conservative management**: Observation and immobilization if the injury is minor. - **Surgical intervention**: Repair of the damaged artery through procedures such as bypass grafting, end-to-end anastomosis, or vessel patching. - **Endovascular procedures**: Minimally invasive techniques like stenting or clot removal in suitable cases. - **Medication**: Use of anticoagulants or antiplatelet agents to prevent clot formation, as advised by a healthcare professional. Post-treatment care involves monitoring for signs of infection, ensuring proper wound healing, and rehabilitative therapy to regain full limb function. Emergency treatment is crucial in cases with abrupt limb ischemia to restore blood flow quickly.