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: Anaesthesia
[{'content': 'Patient with mitral stenosis is having surgery tomorrow. There is some liver compromise. Which of the following inhalational agent is preferred – \nSelect and explain. \nA. Halothane, B. Enflurane, C. Xenon, D. Sevoflurane', 'role': 'user'}, {'content': 'Answer: C \nExplanation: "Maintenance of anesthesia in MS is best accomplished by use of drugs with minimal effect on heart rate, myocardial\xa0contractility, cardiac output and systemic and pulmonary vascular resistence".\n─Stoelting\n\nAmongst the given options, Xenon has minimal effect on cardiovascular side effects.\nHalothone decrease myocardial contractility, BP and heart rate.\nEnflurane decreases BP, Systemic vascular resistance and increase heart rate.\nSevoflurane decreases BP, cardiac output, and systemic vascular resistane.', 'role': 'assistant'}]