{"knowledge_schema": {"broad_category": "Medicine \u2192 Cardiology \u2192 Post-Procedure Complications", "refinement": "This problem focuses on complications that can arise after cardiac catheterization, particularly at the site of vascular access.", "specific_scope": "The scenario describes a patient presenting with specific symptoms and physical findings at the femoral access site following cardiac catheterization, which requires identifying the underlying cause of these findings.", "goal": "Determine the most likely cause of the vibration and murmur at the femoral access area based on the clinical presentation."}, "summary": "In this clinical scenario, a patient presents with chest pain and notable findings at the femoral access site after cardiac catheterization. The presence of vibration and a continuous murmur suggests a vascular complication. The most likely cause of these findings is a femoral artery pseudoaneurysm, which occurs when there is a breach in the arterial wall leading to a collection of blood that communicates with the artery, causing the characteristic signs observed."}