Hi, Welcome to Health care magic forum.
As you describe, he is a patient of liver cancer
since 12 years, and now had moderate heart failure
Most probably he will be done angioplasty
, with keeping the stent
in the carotid artery
. It can save him from having a second attack, and the load over the liver which usually happen after the stroke
If these 2 are successful,he will be lucky to have extension of life and comfort of living.
He should be careful, by avoiding the salt, fats, exertion etc.
Wishing for a quick and complete recovery. Thank you.