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Example research essay topic: Coronary Heart Disease Density Lipoprotein - 1,576 words

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... flow from the right atrium into the right ventricle. When the right ventricle beats or contracts, the blood flows through the pulmonary valve and into the lungs where it becomes oxygenated. The oxygenated blood returns to the heart, pooling in the left atrium.

The mitral valve allows the blood to pass from the left atrium to the left ventricle. When the left ventricle contracts the blood travels through the aortic valve into the aortic arch for distribution throughout the body. (Cardiac, Healthy Heart Anatomy) List of some Cardiac Disorders with Descriptions Angina Pectoris: Angina is a symptom of coronary heart disease, which occurs when arteries that carry blood to the heart become narrowed and blocked due to atherosclerosis. This results in recurring pain in the chest, pain radiation in the arms, shoulders, jaws, neck and back and discomfort when some part of the heart does not receive enough blood. Heart Attack: A heart attack occurs when one of more areas of the heart muscle experience a severe or extended decrease in oxygen supply caused by blocked blood flow.

This blockage is often a result of cholesterol and other fatty substances. Because of plaque inhibition, it obstructs the free flow of blood and oxygen to the heart and to the rest of the body, which may result in the muscle cells inside the heart to suffer severe damage and even cause death. The symptoms of heart attack are the feeling of severe pressure, fullness, squeezing, pain and / or discomfort in the center of the chest or even in the shoulders, neck, arms and jaw that lasts for some minutes. Other symptoms can also be sweating, cool, clammy skin and paleness; shortness of breath, nausea or vomiting, dizziness or fainting, unexplained weakness or fatigue and rapid or irregular pulse Coronary Heart Disease: The symptoms of CHD vary and depend upon the severity of the disease.

Some people have no symptoms and others have experience mild chest pain, while some suffer severe chest angina pain. Some people may also suffer a heart attack and yet show no symptoms. Such heart attacks are known as "silent attacks." (Fred & Lena M. ) Tests used to Diagnose Cardiac Disease The following tests are normally carried out to verify abnormalities such as the enlargement of the hear, irregularity in heart beat or the symptoms of ischemia which is the lack of oxygen to the heart muscle: An Echocardiogram A Chest X-Ray A Chest CT Scan A Angiogram Common Medications for treatment of Cardiac Disorder The most commonly used medications for cardiovascular disorders include diuretics, beta blockers, calcium channel blockers, angiotensin-converting enzyme (ACE) inhibitors, angiotensin II receptor antagonists, and direct vasodilators. intravenous dioxide or nitroprusside if hypertension symptoms are severe and intensive care is needed. (Medical Encylopedia) Precautionary Measures Patients at times benefit by reducing their salt intake, by stopping to smoke and by reducing alcohol consumption, as these are the main causes of hypertension and related heart disease.

Whole grain, poultry, and fish should preferably be consumed and trans-fats and saturated fats avoided. (Medical Encyclopedia) Conclusion It has however to be noted that none of the above foregoing is a substitute for professional diagnosis and medical advice based on examinations and subsequent treatment. Therefore the timely advice of a qualified physician or healthcare provider is essential for expert medical opinion, which must never be disregarded or delayed in timely seeking and implementing of the medical advice that a patient gets. On the slightest suspicion of ill feeling by any person who is a cardiovascular disease patient, a doctor must be called or 911 dialed instantly. (WILLIAM T. FRIEDEWALD, 2002) References: Alan Rozanski, MD; James A. Blumenthal, PhD; Jay Kaplan, PhD, 1999, Impact of Psychological Factors on the Pathogenesis of Cardiovascular Disease and Implications for Therapy, 99: 2192 - 2217 (Accessed: April 1, 2007) web Cardiac, Healthy Heart Anatomy, Department of Surgery (Accessed: April 1, 2007) web Division for Heart Disease and Stroke Prevention, National Center for Chronic Disease Prevention and Health Promotion 02 / 09 / 2007 (Accessed: April 1, 2007) web Fred & Lena Meijer, Descriptions of Types of Heart Disease, Heart Center, Spectrum Health (Accessed: April 1, 2007) health. org/?

s = 3 &hosp ID = 21315922315641 C 8 B 24 FF 4794 AF 9 A 669 &nid = 8 EED 34 AFD 68 E 21 EDA 2 D 9 &intro = 0 &gs = 1 &Page ID = P 06303 Jackie K Brighton, Val J Gebski & Anthony C Keep, 2002, EBM: Trials on Trial Specifying interventions in a clinical trial, The Medical Journal of Australia 176 (6): 281 - 282 (Accessed: April 1, 2007) web Manual S. B. , Kaplan J. R. & Matthews K. A. , 1986, Behavioral antecedents of coronary heart disease and atherosclerosis, Arteriosclerosis, Vol 6, 2 - 14, American Heart Association (Accessed: April 1, 2007) web Medical Encyclopedia, (Accessed: April 1, 2007) web Roger Line H. , PhD; Desire College, MD, PhD. 1996; Impaired Fibrinolysis and the Risk for Coronary Heart Disease, 94: 2052 - 2054 (Accessed: April 1, 2007) web WILLIAM T. FRIEDEWALD, 2002, The Gale Group Inc. , Macmillan Reference USA, New York, Gale Encyclopedia of Public Health (Accessed: April 1, 2007) web SUPPLEMENTARY FAQs cardiac patients might ask What is cholesterol and why is it so important? Cholesterol is a fat-like substance (lipid) found in all body cells.

Your liver makes all of the cholesterol your body needs to form cell membranes and make certain hormones. Extra cholesterol enters your body when you eat foods that come from animals (meats, eggs, and dairy products). Although we often blame the cholesterol found in foods that we eat for raising blood cholesterol, the main culprit is saturated fat, which is also found in our food. So, we should limit foods high in cholesterol or saturated fat. Foods rich in saturated fat include butter fat in milk products, fat from red meat, and tropical oils such as coconut oil. Cholesterol travels to cells through the bloodstream in special carriers called lipoproteins.

Two of the most important lipoproteins are low-density lipoprotein (LDL) and high-density lipoprotein (HDL). Doctors look at how LDL and HDL relate to each other and to total cholesterol. LDL particles deliver cholesterol to your cells. LDL cholesterol is often called "bad cholesterol" because high levels are thought to lead to the development of heart disease.

Too much LDL in the blood causes plaque to form on artery walls, which starts a disease process called atherosclerosis. When plaque builds up in the coronary arteries that supply blood to the heart, you are at greater risk for having a heart attack. HDL particles carry cholesterol from your cells back to your liver, where it can be eliminated from your body. HDL is known as "good cholesterol" because high levels are thought to lower your risk for heart disease. What is coronary bypass surgery? Bypass surgery improves the blood flow to the heart with a new route, or "bypass, " around a section of clogged or diseased artery.

The surgery involves sewing a section of vein or artery from the leg or chest (called a graft) to bypass a part of the diseased coronary artery. This creates a new route for blood to flow, so that the heart muscle will get the oxygen-rich blood it needs to work properly. Coronary bypass surgery has proved safe and effective for many patients who have the procedure. You can expect to stay in the hospital for about a week after surgery, including at least 1 to 3 days in the Intensive Care Unit (ICU). Your doctor may also recommend that you participate in a cardiac rehabilitation program. These programs are designed to help you make lifestyle changes like starting a new diet and exercise program, quitting smoking, and learning to deal with stress.

Frequently Asked Questions, Heart Information Center, Texas Heart Institute at St. Lukes Episcopal Hospital. web How do I know if I have heart disease? Heart disease often has no symptoms.

But, there are some signs to watch for. Chest or arm pain or discomfort can be a symptom of heart disease and a warning sign of a heart attack. Shortness of breath (feeling like you can't get enough air), dizziness, nausea (feeling sick to your stomach), abnormal heartbeats, or feeling very tired also are signs. Talk with your doctor if you " re having any of these symptoms. Your doctor will take a medical history, do a physical exam, and may order tests.

One of my family members had a heart attack. Does that mean I'll have one too? If your dad or brother had a heart attack before age 55, or if your mom had one before age 65, you " re more likely to develop heart disease. This does not mean you will have a heart attack. It means you should take extra good care of your heart to keep it healthy.

Sometimes my heart beats really fast and other times it feels like my heart skips a beat. Am I having a heart attack? Most people have changes in their heartbeat from time to time. These changes in heartbeat are, for most people, harmless. As you get older, you " re more likely to have heartbeats that feel different.

Don't panic if you have a few flutters or if your heart races once in a while. Heart Disease, Womens health. gov The Federal Government Source for Womens Health Information. web


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Research essay sample on Coronary Heart Disease Density Lipoprotein

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