Dear shraine,
For individuals with congestive heart failure survival can be directly predicted based on the ejection fraction (EF) which is a measure of the pumping muscle of the heart. Mild CHF has slightly increased mortality while severe CHF (EF<10%) can have mortality rates as high as 80% in 5 years. The enlarged heart is due to the CHF and does not have an additional risk associated after EF is accounted for. Hypertension contributes to CHF and can also lead to stroke and is an additive factor. However, you are correct that these sort of things are difficult to predict for individuals. Your grandmother is certainly at increased risk but with good medication and lifestyle she could be in the survivor group at 5 years time.
My mom has changed her life. Give up over half of her salt intake and now rides her bike 12 miles a day. She even paints and washes windows. Changing ones life is the main factor. Matter of fact my mom is so healthy now, she out walks me and I;m 44. Frame of mind helps, get new hobbies, get out and do stuff.
My mom's doctors are very very please and suprised.
So eat that raw garlic and exerice, exerice, and exerice. Just think what got you to this point in your life. You are what you eat. (Ins't that what you heard growning up)....
Good Luck Everyone,
Buzz
btw, now if only I could do what I have learned, Cause I seem to be heading down that road also.
AJ