There is some debate over the use of surgery in people who have
heart failure but who do not have chest pain (angina)
caused by their heart disease.
Surgery to restore blood flow (revascularization) usually is not
recommended for people with heart failure who do not have angina. However, if
there is evidence that part of the heart is not contracting normally, it may
mean that there is poor blood flow to that part of the heart, even though there
is no angina. These people may require additional studies to determine whether
revascularization may be of benefit.
If a person has many risk factors for
coronary artery disease, it is much more likely that
his or her heart failure is caused by impaired blood flow. In this case,
additional testing (thallium scanning) may be appropriate even without angina
or a history of a heart attack to determine whether surgery might be
helpful.
If the person has no risk factors for coronary artery disease, or if
heart failure is most likely the result of another cause (such as chronic
alcoholism), areas of impaired blood flow are not likely, and additional
testing may not provide any benefit.
The decision to have further testing is difficult. Discuss your
options with your doctor. The decision to have surgery is based on each
person's situation, risk factors, lifestyle, and other health factors.