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': 'Facial nerve is injured during parotid surgery. Best management would be: \nSelect and explain. \nA. Immediate repair, B. Repair after 1 week, C. Repair after waiting for paial recovery of nerve, D. Do nothing, sent to higher centre', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' i.e. Immediate repair During mastoidectomy, when the facial nerve is injured, it is immediately explored. Injury to greater than 50% of the neural diameter of the facial nerve is addressed either with primary reanastomosis or reconstructed with the use of a nerve graft. Complete recovery of nerve function is uncommon in these cases.", 'role': 'assistant'}]