hi i have had a tripple bypass in 2008, march, and had a strock in september, same year and after 2years ,i had pain and had angiography ,doctor said two artiries are blocked again,so have only one clear artirie.this year had a pacemaker,put in.my question is can my blocked artiries be un blocked,what can i do to help ,i am 59 years old.thank you ijaz