unstable angina heart attack

Tips for Heart Month: Cause and Treatment of Heart Attacks

“Knowledge…should sharpen our ability to scrutinize more steadily.” – Margaret Mead

Like the other organs of the body, the hardworking heart requires oxygen and nutrients to function. This need is met by the coronary arteries, two small vessels on the outer surface of the heart muscle. The right coronary artery supplies the undersurface of the heart. The left artery runs for about an inch at the top of the heart before dividing into two main branches called the “left anterior descending,” traveling to the front of the heart, and “circumflex” supplying the back of the heart. These three arteries (right, left anterior descending and circumflex) and their branches send smaller tributaries into the substance of the hart muscle to supply it with the oxygen and nutrients needed to contract and pump normally.

The coronary arteries are more susceptible than most other arteries to athererosclerosis (also known as arteriosclerosis), a buildup of cholesterol with the walls of the vessels. When severe, this buildup may obstruct the artery. Under resting conditions, the blood flowing through the diseased coronary artery may be sufficient to supply a specific area of heart muscle, but under more demanding conditions, such as exercise, when the heart is working harder and requires oxygen and nutrients, the obstruction may not allow sufficient blood through to meet the needs of the heart area it supplies. An imbalance of oxygen supply and demand (called “ischemia”) is created. When this occurs, the afflicted individual often experiences symptoms of chest discomfort called “angina pectoris.”

A diseased coronary artery can also become unstable, resulting in ulceration or total disruption of a cholesterol deposit. This often leads to major problems. An ulcerated or disrupted coronary artery is susceptible to blood clots forming on its exposed surface. When this occurs, the vessel can become completely occluded. As a result, the portion of heart muscle supplied by that artery becomes starved for vital oxygen and nutrients. If the occlusion persists for more than an hour, the affected muscle begins to die. This is usually accompanied by severe, persistent crushing pain over the center of the chest, the prime symptom of a heart attack.

When this symptom strikes, it is urgent to get to the nearest hospital emergency room– immediately! Cardiologists can now thread a balloon catheter from the groin into the blocked area and open it up, salvaging precious heart muscle, which can substantially improve long-term prognosis. Remember: your heart is a remarkably resilient organ. It can suffer significant damage before impairment in function occurs. The outlook for patients with coronary atherosclerosis depends on the extent of heart muscle damage from a heart attack and on the extent of blockage in the coronary arteries. Reducing the initial damage, as well as taking the vital steps to reduce your risk factors for a second attack (i.e. lowering your cholesterol, normalizing blood pressure, supervised exercise, diet and weight reduction, reducing stress, etc.) are the keys to living a long and healthy life after suffering a heart attack.

About the Author

Richard Helfant, MD, is a Harvard-trained cardiologist and developer of cardiac technologies. His book
Courageous Confrontations
, is about how the mind-body relationship can prevent and help one recover from a
heart attack
.

Do I have unstable angina? Please help?

Last night I do not know when but I vaguely remember Having a sharp pain that was pulsing randomly but frequently 1-4 seconds while I was sleeping or slightly awake.Its fine today and this also happens sometimes when im awake. I have alot of anxiety and stress but can that cause it in the middle of the night?

I had an 2 ekgs within the last 8 months most recent maybe 1 and 1/2 to 2 months ago for heart palpations. The results came back fine but I had Tachycardia sinus(fast heart rate) but that was only b/c I was extremely nervous They said it was anxiety and they slowly went away.

Its 4:30 am and im scared to go to sleep because i heard unstable angina says a heart attack is close.

Please help
ps im 19 but I used to ear very unhealthy not I eat healthier I weigh 190 I am 5 foot 11 1/2.

Hopper,
An EKG may not be sufficient to diagnose the problem. I would recommend a heart stress test or heart cath, or starting a medication like Plavix. Your problem, if it exists, does not originate in the heart. It originates in the veins and arteries leading to the heart. Here is the url of a web page that explains it a little better.

http://heartdisease.about.com/cs/coronarydisease/a/unstableangina.htm

Hope this helps. Good luck!

Insidermedicine in 60 – January 29, 2008

unstable angina heart attack

Filed under: Angina Pectoris

Like this post? Subscribe to my RSS feed and get loads more!