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: Pediatrics
[{'content': 'Drug of choice for infantile spasm is – \nSelect and explain. \nA. Vigabatrin, B. ACTH, C. Ethosuximide, D. Carbamazepine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Myoclonic epilepsy may be\n\nInfantile spasm or Infantile myoclonus or West syndrome\nJuvenile myoclonic epilepsy\n\nInfantile spasm (Infantile mvoclonus or west syndrome)\n\nThe onset is usually between 3-8 months of life\nIt is characterized by a triad of -\n\ni)\xa0Salaam spells (sudden dropping of the head & flexion of arms)\nii) Mental retardation\niii) Hypsarrhythmic pattern of EEG (diffuse high voltage slow spike and chaotic activity)\n\nThe spasm occurs in clusters usually on waking.\nPrognosis for normal mental development is poor.\n\nTreatment of infantile myoclonus\n\nACTH and corticosteroids are given for 2-12 weeks, depending upon response.\nVigabatrin is the DOC Now.', 'role': 'assistant'}]