8th March 2024

A 32-year-old male presents to ED with left upper-limb weakness and speech disturbance.

A 32-year-old male presents to ED with left upper-limb weakness and speech disturbance. His admission observations are: temperature 37 degrees Celsius; respiratory rate 14 breaths per minute, saturation 97% on room air, heart rate 112 and blood pressure 120/70 mmHg. On examination, there is a soft systolic flow murmur over the left upper sternal border. He has no past medical history and takes no regular or over the counter medications. His ECG is shown below. What is the most likely diagnosis?  

Select the SINGLE most appropriate option from the list below. Select ONE option only.