Submitted by Dr T on July 14, 2011 – 9:49am
Your father has had a stroke due to a blood clot blocking the artery and most likely coronary artery disease plus damage to his heart causing congestive heart failure.
The source hasn’t been treated yet according to what you have told me. It is most likely either his heart or his carotid arteries. An arrhythmia such as A fib can cause blood clots to develop in the heart, a piece of which may brake off and get stuck in a brain artery. This is best evaluated with a Cardiac ECHO or MRI for the heart or an ECHO of the carotids:
You can check his risks here:
Talk to his doctors about checking these things out!
Hope this helps,