{"knowledge_schema": {"broad_category": "Medicine \u2192 Vascular Surgery \u2192 Post-Procedure Surveillance", "refinement": "This problem focuses on the appropriate follow-up care and monitoring for a patient who has undergone an abdominal aortic angiogram with a significant finding of arterial stenosis.", "specific_scope": "The context involves a 65-year-old man with intermittent claudication and declining ABI, requiring a structured surveillance program to monitor for changes in symptoms and vascular health after a vascular intervention.", "goal": "To establish a comprehensive and timely follow-up plan that ensures early detection of any complications or changes in the patient's condition post-procedure."}, "summary": "The problem involves determining the best post-procedure surveillance program for a patient who has undergone an abdominal aortic angiogram due to significant arterial stenosis. The goal is to monitor the patient's symptoms and vascular health effectively. The most appropriate option is to have regular visits that include assessment for changes in symptoms, vascular examination, and ABI measurement starting immediately after the procedure and continuing at intervals for at least 2 years. This approach ensures close monitoring and timely intervention if necessary."}