A 40-year-old man has noticed progressive shortness of breat…
A 40-year-old man has noticed progressive shortness of breath on exertion for the last 2 weeks. Today, he also experiences palpitations prior to syncope. Emergency medical services arrive and he is noted to be in ventricular fibrillation. He has cardioversion and he is started on amiodarone drip. He wakes up right after cardioversion and therefore is not intubated. He has remained in sinus rhythm. On physical examination, his vital signs are BP of 120/80 mmHg, HR of 90 beats/min, RR of 18 breaths/min, Spo2 of 95%, and a temperature of 97.8°F. His physical examination is unremarkable except for a systolic murmur. An ECG shows LVH and no ST-T wave changes. An echocardiograph shows the left ventricular wall thickness is 30 mm in the basal anterior septum and there is systolic anterior motion of the mitral valve. What is the next step?