Which of the following conditions most commonly results in CAD
IntroductionCoronary artery disease (CAD, also called coronary heart disease, or CHD) is caused by the narrowing of the large blood vessels that supply the heart with oxygen. These are called coronary arteries. Arteries that have become extremely narrow can cause shortness of breath and chest pain during physical activity. If a coronary artery suddenly becomes completely blocked, it can result in a heart attack. Show CAD can also lead to other health problems like heart failure or heart rhythm problems. Various treatments can be used to reduce the symptoms and the risk of complications. SymptomsCAD symptoms can range from shortness of breath to chest pain of varying intensity. This kind of chest pain is called angina. It is usually associated with a feeling of constriction or anxiety, and it may extend into the arms, back of the neck, back, upper abdomen or jaw. These symptoms are most often triggered by physical exertion because the heart muscle needs more oxygen then. They occur if too little blood flows through the coronary arteries. The level of physical activity at which the symptoms start to occur is also referred to as the "angina threshold." In stable angina this threshold remains unchanged for a longer period of time. The severity of the symptoms is always about the same, too. The symptoms go away quickly with rest or after taking medicine. Unstable angina is used to describe angina in which the symptoms become worse suddenly without any change in physical exertion, or if the threshold changes. The pain may start earlier, last longer, occur more frequently or become more intense. The very first time that angina occurs, it is also classified as unstable. Unlike stable angina, unstable angina is a medical emergency: There is a risk of heart attack because the artery may become fully blocked without any warning. Possible areas of pain during a heart attack CausesCAD is caused by arteriosclerosis (hardening of the blood vessels). Arteriosclerosis develops from minor inflammations in the walls of blood vessels. Cells, fats and other substances stick to the walls there and form deposits. These are called plaques. Deposits in the coronary arteries aren’t noticeable at first. If they build up over time, they may start affecting the flow of blood through the blood vessel more and more, until one part of the heart muscle doesn’t get enough oxygen. Physical activity or emotional stress can then lead to discomfort and chest pain (stable angina). But the plaques can also suddenly break open. A blood clot may form there that blocks the blood vessel almost entirely. If this happens, the chest pain may also occur without any previous physical exertion (unstable angina). If one of the arteries is blocked completely (infarct), part of the heart muscle will die if no immediate action is taken. Risk factorsThe risk of getting coronary artery disease increases with age. Other risk factors for CAD include smoking, being very overweight, high cholesterol, high blood pressure, and diabetes. PrevalenceCAD is one of the most common chronic conditions: Nearly 10% of people between the ages of 40 and 80 are affected by it – men more often than women. OutlookCAD is a chronic disease. Someone may first notice that they have it after experiencing angina symptoms, but CAD can also cause a heart attack without any previous symptoms. Sometimes a heart attack might even go unnoticed. This is known as a silent heart attack. People who have nerve damage due to diabetes, for example, might not feel the typical symptoms of a heart attack. The severity of angina can vary, regardless of how much the supply of oxygen to the heart muscle is affected. There are four grades of severity: Table: Severity of stable angina
There is no clear cut-off point between grade 4 stable angina and unstable angina. EffectsCAD can also lead to other health problems, most commonly heart attacks, heart rhythm problems like atrial fibrillation, and heart failure (cardiac insufficiency). Some people who have CAD develop depression too. This is more likely following a heart attack. DiagnosisChest pain can be caused by CAD, but it may be caused by many other things too. Problems affecting the muscles or bones in the chest area are often the reason. An inflammation of the heart muscle or diseases affecting the lungs or the food pipe can also cause chest pain. The main way to diagnose CAD is with an electrocardiogram (ECG). This test is done either while you are resting or while you are exercising. It is also possible to do an ultrasound scan of the heart (echocardiography) or use another imaging technique to examine the heart. The person’s age, other medical conditions, and the type of symptoms will determine what additional testing might be needed. To get an idea of the risk of complications and make a treatment plan, your doctor may suggest having more tests. The diagnosis typically involves:
ScreeningIn Germany, people covered by statutory health insurance are entitled to a general health check-up every three years from the age of 35 onwards. The aim of this check-up is to detect early signs of cardiovascular disease, diabetes and kidney problems. It involves things like having your blood pressure taken, and blood and urine tests. TreatmentThe main goals of treatment for CAD are to relieve symptoms and prevent complications. Medication can reduce the symptoms and restrictions in everyday life caused by stable angina. Beta blockers, calcium channel blockers and nitrates are used for this purpose. If that doesn't help, doctors often try to widen the narrowed coronary artery with a procedure using a cardiac catheter. If the arteries are severely narrowed, or if several blood vessels are affected, bypass surgery may be considered. This involves taking a blood vessel from elsewhere in the body and using it to redirect blood around the blocked coronary artery (bypassing it). There are things you can do on your own to help prevent complications like a heart attack or heart failure: eating a healthy diet and getting enough exercise are two examples. If you smoke, you could try to give it up. Also, there are a number of different medications that can prevent complications and increase life expectancy. These include the following:
RehabilitationPeople who have CAD can participate in a cardiac rehabilitation program. This aims to increase physical endurance, improve quality of life, and prevent complications. Cardiac rehabilitation programs often include a combination of exercise, learning how to deal with the disease and risk factors, as well as psychological support. The program is directed by a team of specialists from the fields of medicine, physiotherapy, nutritional sciences and psychotherapy. Research has shown that cardiac rehabilitation that includes exercise is worth doing: It can improve quality of life and increase life expectancy. Cardiac rehabilitation is particularly recommended if someone has had a heart attack, if CAD has already led to heart failure, or if the symptoms are greatly affecting normal everyday activities. Your doctor can help you submit an application for cardiac rehabilitation to the appropriate payer. In Germany this will typically be a statutory health insurer or pension fund. Everyday lifeSome people who have CAD may feel guilty because they think they should have done more for their health. But individual lifestyle is just one of several factors that influence your overall risk of heart disease. It can also be difficult to change basic habits once you've been diagnosed. It can sometimes help to make changes step by step. Further informationAnyone with CAD who has statutory health insurance in Germany can participate in a structured disease management program (DMP, in German: strukturiertes Behandlungsprogramm). These programs aim to improve quality of life and ensure high-quality care. The best way to sign up for a DMP is by contacting your health insurer. Sources
Which of the following conditions most commonly results in coronary artery disease CAD )? *?In coronary artery disease, there is a blockage in the arteries that supply blood and oxygen to the heart. The most common cause is atherosclerosis which is a buildup of plaque inside the walls of the arteries. Plaque is made of several substances including cholesterol.
What are 3 causes of CAD?Besides high cholesterol, damage to the coronary arteries may be caused by:. Diabetes or insulin resistance.. High blood pressure.. Not getting enough exercise (sedentary lifestyle). Smoking or tobacco use.. What are the 4 major risk factors of CAD?The traditional risk factors for coronary artery disease are high LDL cholesterol, low HDL cholesterol, high blood pressure, family history, diabetes, smoking, being post-menopausal for women and being older than 45 for men, according to Fisher. Obesity may also be a risk factor.
Who is most likely to develop CAD?Age: CAD prevalence increases after 35 years of age in both men and women. The lifetime risk of developing CAD in men and women after 40 years of age is 49% and 32%, respectively. [13] Gender: Men are at increased risk compared to women.
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