A 37-year-old male is evaluated in the emergency department for right-sided weakness. Medical history is significant for heart failure with placement of a left ventricular assist device (LVAD) 2 years ago.
Which of the following is the most likely cause of the patient's right-sided weakness?
a) Acute ischemic stroke
b) LVAD malfunction
c) Peripheral neuropathy
d) Transient ischemic attack