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: ENT
[{'content': 'In B/L, abductor palsy of vocal cords following is done except: \nSelect and explain. \nA. Teflon paste, B. Cordectomy, C. Nerve muscle implant, D. Arytenoidectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is a i.e Teflon paste In Bilateral Abductor paralysis (i.e. bilateral paralysis of RLN), the cords lie in median or paramedian position due to unopposed action of cricothyroid muscle. Since, both the cords lie in median or paramedian position, the airway is inadequate causing dyspnea and stridor. Principle for managing such cases is: lateralisation of the cord and not fuher medialization of cord by injection of Teflon For more details see the proceeding text.', 'role': 'assistant'}]