I77.77

Clinical Causes: Trauma or injury to the leg or pelvis Underlying connective tissue disorders, such as Marfan syndrome or Ehlers-Danlos syndrome Atherosclerosis, leading to weakening of arterial walls Arterial inflammation or vasculitis High blood pressure exerting stress on arterial walls Genetic predisposition involving arterial wall abnormalities

Key Symptoms: Sudden onset of severe leg pain Swelling or a feeling of fullness in the calf or thigh Coolness or pallor in the affected limb Weakness or numbness in the leg or foot Decreased or absent pulses in the affected artery Possible sensory changes or paralysis in severe cases

Diagnosis Path: Diagnosis of an arterial dissection involves a combination of clinical evaluation and imaging studies, including: - Doppler ultrasound: non-invasive method to assess blood flow and detect tears - Computed tomography angiography (CTA): detailed images of blood vessels to confirm dissection - Magnetic resonance angiography (MRA): provides high-resolution images without radiation exposure - Angiography: invasive procedure considered the gold standard for diagnosis when intervention is planned Proper diagnosis ensures timely intervention and appropriate management of the condition.

Treatment Protocols: Treatment options focus on restoring blood flow, managing symptoms, and preventing complications: - Medications: - Blood thinners (anticoagulants or antiplatelet agents) to prevent clot formation - Pain medications for symptom relief - Surgical intervention: - Endovascular procedures such as stent placement or coil embolization - Open surgery to repair or bypass the damaged artery - Conservative management: - Close monitoring in selected cases with small dissections - Lifestyle modifications to control blood pressure and reduce risk factors Follow-up includes regular imaging to monitor the artery’s condition and prevent recurrence or progression.