What is the average lifespan of a woman who has had a heart attack?

My mom had at least one heart attack over the past 6 days… it could be as high as 3, she's in hospital now, but I'm just curious what the average lifespan is of a woman who has suffered a heart attack, she's gone threw minipause, and smokes (which I know isn't good, and it may or may not stop). She'll be 58 in July.
I actually did spell check, but didn't read it to catch the thew and not through.