The same study showed that the most critical factor in determining whether or not a person will benefit from bypass surgery seems not to be the number or extent of blockages, but rather how well the left ventricular pump is functioning. This is assessed by measuring the total amount of blood pumped with each beat, known as the ejection fraction. A healthy heart generally has an ejection fraction of 50% or greater. Studies have shown that almost 90% of all bypass surgeries are performed on patients whose ejection fraction is over 50%.
Cardiac bypass procedures can lead to long-term cognitive brain impairment. In addition to this, because bypass surgery alters arterial blood flow, that portion of the artery upstream from the bypass graft site accumulates plaque at 10 times the rate of an un-grafted artery. Because of this, bypass patients must also face the possibility that one operation may not be enough. Reports indicate that 15% to 30% of vein grafts become re-blocked within one year of surgery.
Lastly, let’s not overlook the psychological trauma. It would be difficult to find anyone who is not terrorized by the operation.
Because of these facts, rushing patients in for emergency surgery because of a severely narrowed coronary artery is usually unwarranted and needlessly frightens patients and their families.
The good news is that the disease can be treated with non-invasive approaches.
In spite of these selection biases heavily favoring surgical intervention, almost every single study clearly and unequivocally demonstrates that invasive treatment, be it bypass surgery or angioplasty, fails to reduce heart attacks and mortality when compared to patients who have been conservatively treated with medication. In addition, there is a clear increase in mortality, heart attack rate, cardiovascular events, repeat angioplasty and bypass surgery in the invasively treated patients.
Still, many doctors scoff at non-interventional approaches because these methods are unable to eliminate or unclog the obstructed coronary artery.
But you don't have to unclog arteries. Proper medication can restore blood flow to that section of the heart by dilating other blood vessels in the same area that are not blocked while other medicines simultaneously reduce the workload of the heart so that the heart muscle requires less blood.
Removing the block becomes IRRELEVANT. Moreover, atherosclerosis is a systemic disease. It occurs throughout all the coronary arteries. If you fix one segment, a year later it may be another segment that leads to a heart attack. So systemic therapy, with medication has the potential to do a lot more.
Once blood flow is adequate for the work load of the heart, chest pains will disappear. So will the risk of a heart attack or death. (A non-interventional cardiologist can be your best bet).