Cardiac problems can lead to neurological complications depending on the severity of the cardiac complications.
Myocardial infarction, heart failure, endocarditis/myocarditis, myocardial aneurysm, and noncompaction can cause cerebral embolism if not treated in time.
Arrhythmia, valve stenosis and low output failure due to systolic dysfunction are some other cardiac problems that can result in neurological abnormalities.
So, chronic and untreated heart problems can lead to neurological symptoms.