This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': "Lumbar sympathectomy done for all EXCEPT: September 2012 \nSelect and explain. \nA. Causalgia, B. Intermittent claudication, C. Rest pain, D. Raynaud's disease", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. B i.e. Intermittent claudication Three main indications of lumbar sympathetcomy: Causalgia Inoperative aerial occlusive disease with limb-threatening ischemia causing rest pain, limited ulceration, or superficial digital gangrene Symptomatic vasospastic disorders Sympathectomy It increases peripheral blood flow by vasodilation of aerioles in cutaneous vascular beds Good for: - Causalgia - Hyperhidrosis - Vasosopastic disorders (frostbite, Raynaud's) PVD Some inoperable patients may receive sufficient increases to help heal superficial ischemic ulcers and relieve rest pain - Sho-term - Pallative", 'role': 'assistant'}]